Hitachi Universal Storage Platform V Hitachi Universal Storage Platform VM Hitachi Universal Volume Manager User’s Guide FASTFIND LINKS Document Organization Product Version Getting Help Contents MK-96RD626-07
Copyright © 2008 Hitachi Data Systems Corporation, ALL RIGHTS RESERVED Notice: No part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying and recording, or stored in a database or retrieval system for any purpose without the express written permission of Hitachi Data Systems Corporation (hereinafter referred to as “Hitachi Data Systems”).
Contents Preface ...................................................................................................ix Intended Audience ...............................................................................................x Product Version....................................................................................................x Document Revision Level ......................................................................................x Source Documents for this Revision ..............
Connecting Mainframe Volumes ....................................................................... 2-19 Connecting Open Systems Volumes ................................................................. 2-19 Choosing Mapping Policy................................................................................. 2-20 Difference between Automatic Mapping and Manual Mapping............................. 2-20 Port Discovery and Volume Discovery...............................................................
Installing Universal Volume Manager ................................................................3-13 Uninstalling Universal Volume Manager .............................................................3-13 Starting Universal Volume Manager ..................................................................3-14 Using the Universal Volume Manager GUI............................................... 4-1 Volume Operation Window.................................................................................
Turning On or Off the Storage System ............................................................. 5-30 Commands for Turning On or Off Only the External Storage System ................... 5-30 Turning On or Off Only the External Storage System ......................................... 5-31 Turning On or Off Only the Local Storage System ............................................. 5-32 Turning On or Off Both Storage Systems ..........................................................
Relationship between Serial Number and 9500V Model ................................. A-6 Relationship between WWN of Port and Controller(9500V) ............................ A-6 Path Status and Examples of Recovery Procedure(9500V)............................. A-8 USP V/VM Storage System ................................................................................ A-9 Path Status and Examples of Recovery Procedure(USP V/VM) ....................... A-9 TagmaStore USP/NSC Storage System ....................
viii Contents Hitachi Universal Storage Platform V/VM Universal Volume Manager User’s Guide
Preface This document describes and provides instructions for using the Universal Volume Manager software to configure and perform Hitachi Universal Volume Manager Operations on the Hitachi Universal Storage Platform V and Hitachi Universal Storage Platform VM storage system. Please read this document carefully to understand how to use this product, and maintain a copy for reference purposes.
Intended Audience This document is intended for system administrators, Hitachi Data Systems representatives, and Authorized Service Providers who are involved in installing, configuring, and operating the Hitachi Universal Storage Platform V and Hitachi Universal Storage Platform VM storage systems. This document assumes the following: • The user has a background in data processing and understands RAID storage systems and their basic functions.
Source Documents for this Revision • MP-96RD626-06 • MK-96RD626-07d-RSD-V02 Changes in this Revision • Added a chapter about spreadsheets (see Using Spreadsheets for Universal Volume Manager Operations). • Added descriptions about the spreadsheets in Universal Volume Manager Operations. • Added descriptions about the VMA of Data Retention Utility in VMA of Data Retention Utility. • Added descriptions about the default setting of the cache mode in Configuring External Volume Attributes.
Chapter / Appendix Description 8 Troubleshooting Provides troubleshooting information for Universal Volume Manager and instructions for calling technical support. A Connecting External Storage Systems Describes configuration for external storage systems. B Required Volume Capacity for Each Emulation Type Describes the capacity list for each emulation type. C Adjusting Volume Capacities for Pairs Describes how to adjust the volume capacity when creating a pair.
Document Conventions The terms “Universal Storage Platform V” and “USP V” refer to all models of the Hitachi Universal Storage Platform V, unless otherwise noted. The terms “Universal Storage Platform VM” and “USP VM” refer to all models of the Hitachi Universal Storage Platform VM, unless otherwise noted.
This document uses the following icons to draw attention to information: Icon Meaning Description Note Calls attention to important and/or additional information. Tip Provides helpful information, guidelines, or suggestions for performing tasks more effectively. Caution Warns the user of adverse conditions and/or consequences (e.g., disruptive operations). WARNING Warns the user of severe conditions and/or consequences (e.g., destructive operations).
Getting Help If you need to call the Hitachi Data Systems Support Center, be sure to provide as much information about the problem as possible, including: • The circumstances surrounding the error or failure. • The content of any error messages displayed on the host system(s). • The content of any error messages displayed by Storage Navigator.
1 Overview of Universal Volume Manager This chapter provides an overview of Universal Volume Manager.
Universal Volume Manager Universal Volume Manager software provides the virtualization of a multitiered storage area network comprised of heterogeneous storage systems. It enables the operation of multiple storage systems connected to a USP V/VM as if they were all in one storage system and provides common management tools and software.
Unifying Copy Operations between Different Storage Systems When you copy data between different storage systems, the copy operations are usually different depending on the storage system which you use. If you install Universal Volume Manager, you can perform the following copy operations in the same way as when you copy data between volumes in the USP V/VM storage system. • To copy data between a volume in the USP V/VM storage system and a volume in an external storage system.
Unifying Connections from a Host to Different Storage Systems When a system has multiple storage systems, a host usually needs to connect all storage systems. When a system administrator configures the connections from a host to volumes, they need to follow the different instructions depending on the storage systems. If you install Universal Volume Manager, a system administrator only needs to configure the connection from a host to the USP V/VM storage system.
2 About Universal Volume Operations Manager This chapter explains the functions and applications of Universal Volume Manager.
Connecting External Storage System Universal Volume Manager enables you to use Hitachi storage systems, original equipment manufacturer (OEM) storage systems, and other vendors' storage systems (such as IBM or EMC) as connectable external storage systems. Hosts will recognize these volumes as internal volumes of the USP V/VM storage system. In this user's guide, the original USP V/VM storage system is called "local storage system" and a connected storage system is called the "external storage system".
Host 1 Host 2 Fibre-Channel Interface Connection Local Storage System Target Port Switch External Storage System Target Port External Port External Port Port WWN 0 Port WWN 1 Internal Volumes Mapping Legend ：Volumes installed in the storage system ：Virtual volumes that do not have physical memory space ：Lines showing the concept of mapping Figure 2-1 Concept of Universal Volume Manager By mapping an external volume as an internal volume using Universal Volume Manager as shown in Figure 2-1, i
Universal Volume Manager Components System using Universal Volume Manager usually contains the following components: – Local storage system (USP V/VM storage system) – External storage system – Storage Navigator computer – Universal Volume Manager – External volume – Internal volume, which is a virtual representation of an external volume – LDEVs (Logical Devices) in an external volume – Cross-subsystem path – Mapping path The following figure illustrates the relations of the Universal Vo
Storage Systems and Cross-subsystem Paths Before using Universal Volume Manager, connect the fibre channel port of the local storage system to the external storage system port with the fibre cable. The route between ports, which is connected with the cable, is called the "cross-subsystem path". The fibre channel port of the local storage system is set to connect to the host by default.
To use the external volumes, which you mapped as an internal volume (see B in Figure 2-2), from the host or other program products, the system administrator needs to create LDEVs in the external volume (see A in Figure 2-2). To create LDEVs, use Universal Volume Manager at the time of mapping, or use VLL function to an internal volume where an external volume is mapped after mapping. The LDEVs created by these methods are called “LDEVs in the external volume” in this document.
Universal Volume Manager Operations Universal Volume Manager enables you to execute the following operations. • Preparing to use external volumes You can map external volumes, set port attributes, and set crosssubsystem paths. • Preparing to manipulate the power supply of the storage systems You must follow specific procedures if you want to manipulate the power supply of the storage systems when external volumes are used.
Configuring Universal Volume Manager Before configuring the Universal Volume Manager settings, you need to answer the following: • Which ports can be connected to external storage systems • Which external storage system and volumes should be mapped as the internal volumes • How to configure external volume groups • What external volume attributes to be configured • How to configure cross-subsystem paths • How to make volume usable from the local storage system Choosing External Port The port us
For example, if an external volume of 100 GB was mapped as an internal volume of 70 GB, then 30 GB of the external volume would not be accessible from the local storage system side. • You cannot map an external volume whose capacity is smaller than the minimum available capacity. For example, you cannot map an external volume of 10 GB as an internal volume which requires at least 30 GB.
• Cache Mode (Enable or Disable) Cache mode specifies whether the write data from the host to the external storage system is propagated synchronously (Disable) or asynchronously (Enable). By default, cache mode is set to Enable. All I/O to and from the local storage system (either Enable or Disable) always uses cache. Write operations are always backed up in duplex cache.
• CLPR When the cache memory is partitioned using Virtual Partition Manager, configure a cache logical partition (CLPR) to access the mapped volume. See the Virtual Partition Manager User’s Guide for the detailed information on CLPR. Cross-subsystem Paths A cross-subsystem path is a route from a local storage system port to an external storage system port. To prepare for possible failures of the cable, the switch, or the channel processor, it is recommended that you create redundant cross-subsystem paths.
• In the Single mode, only the path with the highest priority (primary path) is used to execute the I/O to the external volume. When an error occurs in the primary path, the path with the second highest priority is used. • In the Multi mode, all of the set paths are used at the same time. The multiple paths are used to execute the I/Os to the external volume thus distributing the work load (round-robin processing).
External Storage System Local Storage System External A CL1-A Path 1 Port LUN WWN A 5 External Volume Internal Volume External Path 2 B CL2-A Port LUN WWN B 5 Legend ：Internal volume where external volume is mapped Figure 2-3 Example of Alternate Path Setting Figure 2-4 illustrates an example of setting an alternate path when a switch is used. Two ports are specified in the local storage system, and connected to the ports in the external storage system through the switch.
In Figure 2-5, two paths are also set between the internal volume and the external volume. However, one port is specified in the local storage system, and two ports are specified in the external storage systems over the switch. This configuration is not recommended because two ports of different clusters need to be set in the local storage system for alternate path settings in Universal Volume Manager.
Local Storage System Internal Volume External Storage System External Path Port Port A Priority 1 WWN A External Path Port Port B Priority 2 WWN B External Path Port Port C Priority 3 WWN C Local Storage System Internal Volume External Volume External Storage System External Path Port A Priority 1 WWN A External Path Port Port B Priority 2 WWN B External Path Port Port C Priority 3 WWN C Error Port External Volume Legend : Internal volume where the external volum
Local Storage System Internal Volume External Storage System External Path Port Port A Priority 1 WWN A External Path Port Port B Priority 2 WWN B External Path Port Port C Priority 3 WWN C Local Storage System Internal Volume External Volume External Storage System External Path Port A Priority 1 WWN A External Path Port Port B Priority 2 WWN B External Path Port Port C Priority 3 WWN C Error Port External 外部 Volume ボリューム Legend : Internal volume where the exter
When an error occurs in the path that is being used for I/Os, the I/O execution path is switched to the path with the second highest priority in the Normal status. If there is no path in the Normal status other than the path that is being used for I/Os, the status of the path in the Standby status is automatically changed to Normal, and the I/O execution path is switched to that path.
Local Storage System External Port A Internal Volume External Port B External Port C External Storage System Path Priority 1 Status: Normal Path Priority 2 Status: Standby Path Priority 3 Status:Standby Local Storage System External Port A Internal Volume External Port B External Port C Port WWN A Port WWN B External Volume Port WWN C External Storage System Path Port Error Priority 1 WWN A Status: Blockade Path Priority 2 Status: Normal Path Priority 3 Status: Standby Port WWN B External Vo
Connecting Mainframe Volumes Mainframe volumes, that pre-exist on an external storage system and are accessed by ESCON or FICON channels, cannot connect directly to the USP V/VM storage system as an external volume. The USP V/VM storage system does not recognize these volumes because of the fibre channel.
OPEN-V emulation is recommended because, in most cases, OPEN-V emulation provides the most efficient use of storage and the best performance. Also, emulation types other than OPEN-V may not retain existing data after being mapped. Choosing Mapping Policy Policy is a list of settings of the necessary information for mapping the external volume. By setting the mapping policy in advance, the setting at the time of mapping will be easier. One policy is prepared in advance.
You can set in advance the mapping policy on whether to execute the Port Discovery automatically or manually. If Port Discovery is executed automatically, WWNs connected to all the external ports of the local storage system will be searched for. If Port Discovery is executed manually, you can select a specific external port and limit the scope to search WWNs. If you can specify which external port to search for, you can reduce the operation time by executing the Port Discovery manually.
Using a Mapped External Volume from a Connected Host There are two ways of using the mapped external volume from a host that is connected the local storage system. • Storing the new data in the mapped external volume • Using the existing data in the mapped external volume Storing New Data in the Mapped External Volume To store new data in a mapped external volume from a host that is connected to the local storage system: 1.
Host Set the Target port and set the LU path from the Target port for the host I/O. Local Storage System External Storage System Target Port Mapping Legend : Internal volume where the external volume is mapped : External volume Figure 2-10 Storing the New Data in the Mapped External Volume Using Existing Data in the Mapped External Volume To use the existing data in the mapped external volume from the host that is connected to the local storage system: 1.
Notes: • Make sure that you do not access the external volume, which has been mapped as a internal volume, from the host that is connected to the external storage system. Also make sure that you do not access the mapped external volume using the function (e.g., copy function) of the external storage system. Once you have mapped an external volume as an internal volume, you can access the mapped external volume only from the local storage system side.
Interoperability with other Products and Functions You can use the USP V/VM program products to utilize and to manage the external volumes you have set using Universal Volume Manager. For the operations and notes on each program product, see the respective user's guides. LUN Manager and Configuration File Loader If you set the emulation type for the open system as you map the external volume, you need to set the LU path for the mapped volume using LUN Manager.
• If you create LDEVs in an external volume using the VLL function, the cache mode of the created LDEVs become the same as those of the source external volume. Cache Residency Manager Consider the following for Cache Residency Manager: • The bind mode of the Cache Residency Manager operation cannot be specified for the external volume if the Cache Mode is set to Disable.
For a configuration example of Copy-on-Write Snapshot, see Copy-on-Write Snapshot Operations. Dynamic Provisioning Mapped volumes can be used for Dynamic Provisioning. Consider the following for Dynamic Provisioning: • Both internal and external volumes cannot be mixed in one pool. • All external volumes in the same pool must be in the same Cache Mode. SNMP Agent Consider the following for SNMP Agent: • The information on the mapped external volume is displayed.
Examples of Using External Volumes with Other Products For the following USP V/VM program products, the examples of using external volumes are described in the following subsections: • Volume Migration Operations • TrueCopy Operations • Universal Replicator Operations • ShadowImage Operations • Copy-on-Write Snapshot Operations Volume Migration Operations Figure 2-12 shows the use of an external volume for the Volume Migration operation.
Note: The emulation type of the prepared internal volume must be OPEN-V. 3. Set the mapped external volume as the source volume and local storage system internal volume as the target volume. 4. Migrate the existing data in the mapped external volume to the local storage system internal volume manually using Volume Migration.
TrueCopy Operations Figure 2-13 shows the use of an external volume for the TrueCopy operation. The mapped external volume is set as the S-VOL of the TrueCopy pair, and the volume in the local storage system that is connected as the multipoint control unit (MCU) is set as the P-VOL of the TrueCopy pair. For details on TrueCopy, see the TrueCopy User's Guide. The procedure for the operation is as follows: 1.
Copying data in the P-VOL of the local storage system that is connected as MCU to the S-VOL of the local storage system that is set as RCU. The S-VOL is a mapped external volume.
Universal Replicator Operations Figure 2-14 shows the use of an external volume for the Universal Replicator operation. The mapped external volume is set as the S-VOL of the Universal Replicator pair, and the volume in the local storage system that is connected as the MCU is set as the P-VOL of the Universal Replicator pair. For details on Universal Replicator, see the Universal Replicator User's Guide. The procedure for the operation is as follows: 1.
Copying data in the P-VOL of the local storage system that is connected as MCU to the S-VOL of the local storage system that is set as RCU. The S-VOL is a mapped external volume.
ShadowImage Operations Figure 2-15 shows the use of an external volume for the ShadowImage operation. The mapped external volume is set as the S-VOL of the ShadowImage pair, and the local storage system internal volume is set as the P-VOL of the ShadowImage pair. For details on ShadowImage, see the ShadowImage User’s Guide. The procedure for the operation is as follows: 1. Use Universal Volume Manager to map a volume in the external storage system as an internal volume of the local storage system.
Local Storage System External Storage System ShadowImage Mapping S-VOL ShadowImage P-VOL Copying data in the P-VOL that is an internal volume of the local storage system to the S-VOL that is a mapped external volume.
Copy-on-Write Snapshot Operations Figure 2-16 shows the use of an external volume for the Copy-on-Write Snapshot operation. The mapped external volume is set as a pool-VOL of the Copy-on-Write Snapshot pair. For details on Copy-on-Write Snapshot, see the Copy-on-Write Snapshot User’s Guide. The procedure for the operation is as follows: 1. Use Universal Volume Manager to map a volume in the external storage system as an internal volume of the local storage system.
3 Preparing for Universal Volume Manager Operations This chapter describes the requirements and preparations for Universal Volume Manager operations.
System Requirements The system requirements for Universal Volume Manager are: • USP V/VM storage system (First storage system) All the necessary hardware and microcode required for Universal Volume Manager operations must be installed and enabled. In this user's guide, the first storage system is called “local storage system”. • Storage system other than the first storage system A second storage system must be available and operated as an external storage system.
Storage System Note TagmaStore Adaptable Modular Storage Displayed by Universal Volume Manager as “AMS”. TagmaStore Workgroup Modular Storage Displayed by Universal Volume Manager as “WMS”. Lightning 9900V series Displayed by Universal Volume Manager as “9970V” and “9980V”. Path Mode of the cross-subsystem paths will be Single. Path Mode of the cross-subsystem paths will be Single. Path Mode of the cross-subsystem paths will be Multi.
Storage System SANRISE H256 Note Displayed by Universal Volume Manager as “256”. Path Mode of the cross-subsystem paths will be Multi. XP24000 Displayed by Universal Volume Manager as “24000”. Path Mode of the cross-subsystem paths will be Multi. XP20000 Displayed by Universal Volume Manager as “20000”. Path Mode of the cross-subsystem paths will be Multi. XP12000 Displayed by Universal Volume Manager as “12000”. Path Mode of the cross-subsystem paths will be Multi.
Universal Volume Manager Requirements The following table describes the Universal Volume Manager requirements. Table 3-2 Universal Volume Manager Requirements Item Requirement Maximum number of ports in the connected external storage system (WWN is used as a port identification number） 1,024 per port Maximum number of external volumes which can be connected 63,232 volumes can be connected.. 4,096 volumes can be connected per port.
Guidelines for Universal Volume Manager Operations This section provides guidelines for the Universal Volume Manager operations. Mapping Guidelines • Before mapping external volumes, make sure that external volumes are not reserved by a host. External volumes that are reserved by a host cannot be mapped as internal volumes. If external volumes are reserved by a host, cancel the reserve settings and then map the external volumes.
Recommended Applications according to the HDD Type Table 3-3 and Table 3-4 show the recommended level of the application of mapped external volume according to the HDD type of the external volume.
Capacity Guidelines • When a volume, which has the capacity of 4 TB or less, in the external storage system (external volume) is mapped with the setting of OPEN-V emulation type, the volume is defined as the internal volume that has the same capacity as the mapped external volume. External Volume LDEV LU ・The capacity is 4 TB or less.
External Volume VDEV LDEV LU OPEN-3 6 GB Area provided to store data management information Free Space (The area less than the basic capacity of emulation type remains as free space) Figure 3-2 When the External Volume Capacity is Bigger than the Basic Capacity of Specified Emulation Type (Example of the OPEN-3 emulation type) External Volume 2 GB Figure 3-3 VDEV LDEV LU Area provided to store data management information When the External Volume Capacity is Smaller than the Basic Capacity of
• When you use the mapped external volume from the mainframe OS, set the MIH (Missing Interrupt Handler) timer to 45 seconds (which is the recommended value). Volume Attribute Guidelines • The external volume attributes for all the LDEVs created in an external volume become the same. The attributes are taken over, when the LDEVs are reconfigured using the VLL function. • The Cache Mode becomes the same for all the LDEVs in one external volume.
VMA of Data Retention Utility • If you map an external volume to which the volume management area (VMA) of Data Retention Utility is set, you need to configure system options before performing the port discovery or volume discovery operation to validate the VMA information. Please call the Hitachi Data Systems Support Center to find out about how to configure system options (see Calling the Hitachi Data Systems Support Center).
When the amount of I/Os from the host to the external volume exceeds the maximum amount of I/Os that the external storage system can accept, the commands from the host to the local storage system may possibly be timed out. As you configure the system using the external volumes, consider the capability for the I/O amount of the external storage system.
Installing and Uninstalling Universal Volume Manager This section explains how to install and uninstall Universal Volume Manager. Installing Universal Volume Manager You need to install Universal Volume Manager using the license key to perform the Universal Volume Manager operations on the Storage Navigator computer. To install the Universal Volume Manager license key: 1. Start the Storage Navigator Java applet for the desired storage system. 2.
Starting Universal Volume Manager This section explains how to start Universal Volume Manager. To start Universal Volume Manager and display the window: 1. Start Storage Navigator, and open the Storage Navigator main window. For instructions, see the Storage Navigator User’s Guide. 2. Click Go and then Universal Volume Manager on the menu bar of the Storage Navigator main window. Names of the windows that you need for Universal Volume Manager operations are available in the submenu. 3.
4 Using the Universal Volume Manager GUI This chapter explains the Universal Volume Manager windows. Universal Volume Manager involves the Volume Operation window, the Path Operation window and the Port Operation window. When you click the tab of the window name, the window is switched to the corresponding window.
Volume Operation Window The Volume Operation window enables you to perform the operations, such as mapping external volumes and setting cross-subsystem paths. To display the Volume Operation window, click Go, Universal Volume Manager, and then Volume Operation on the menu bar of the Storage Navigator main window.
The Ext. VOL Status column does not display any status when you open the Volume Operation window, because to display the external volume status takes longer than displaying other items in the window. Note: To update the all items in the window including the Ext. VOL Status column, make sure the button name is Status: Enable, then click File and Refresh on the menu bar of the Storage Navigator main window.
When the settings are not applied, the error messages are displayed and the settings in blue and italics remain displayed in the Volume Operation window. To refer to the error detail, click Preview to open the Preview dialog box. • Cancel button Cancels all the settings in the Preview dialog box. Volume Operation Tree The Volume Operation tree is a tree on the left side of the Volume Operation window consisting of a tree and a drop-down list which is used to switch the display of the tree.
Table 4-2 Pop-up Menu for the Volume Operation Tree Items displayed in Tree (clicked items are underlined) Subsystem + Product name + Path group Pop-up Menu Add Volume (Auto) Add Volume (Manual) Description Displays the Configure Cross-subsystem Paths dialog box or the Add Volume (Manual) dialog box. These dialog boxes allow you to set a new path group, and add external volumes to the new path group. Edit Policy Displays the Edit Policy dialog box.
– Ext. VOL Status: Status of the operation executed to the external volume or status of the connection of the mapping path. The displayed items are shown in the following table. To check status of each LDEV in the external volume, you need to view the VLL window. Table 4-3 Status of the External Volume Displayed in the Ext. VOL Status Displayed Item Normal Description The path is normal. The status of the mapping path is not retrieved yet.
Figure 4-3 Volume Operation List when Path Group is Clicked The Volume Operation list consists of: • External Volumes The following items are displayed: – ExG: external volume group number and sequential number assigned to each volume in the external volume group. This is displayed in the format of “external volume group number - sequential number of volume in the group”.
• – Capacity (blocks): capacity of the external volume in Blocks. – Cache Mode: displays whether the write data from the host to the external storage system is propagated synchronously (Disable) or asynchronously (Enable). Data that is not written by the host (for example, data written by ShadowImage) is asynchronously destaged to the external storage system regardless of the Cache Mode setting.
Table 4-4 Pop-up Menu: External Volumes, Volume Operation Window Pop-up Menu Description Mapping Path Information Displays the Mapping Path Information dialog box. This dialog box allows you to refer to the list of the mapping paths set to the selected external volume. LDEV Information Displays the LDEV Information dialog box. This dialog box allows you to refer to the emulation type and the capacity of the selected external volume. Delete Volume Cancels the mapping of the selected external volume.
Preview Dialog Box The Preview dialog box allows you to check or cancel the settings that will be applied to the local storage system. To display the Preview dialog box, click Preview in the Volume Operation window, the Path Operation window, or the Port Operation window. This document uses the term "the Universal Volume Manager windows" to call these three windows. The contents displayed in the Preview dialog box are displayed in blue italics in the list of the Universal Volume Manager windows.
The Preview dialog box consists of: • Preview Area The items set in the list of the Universal Volume Manager windows are displayed. The contents displayed in the preset area differ depending on the items set in the list of the Universal Volume Manager windows. The contents displayed in the preset area are displayed in blue italics in the list of the Universal Volume Manager windows.
Path Operation Window The Path Operation window enables you to stop or resume using crosssubsystem paths. To display the Path Operation window, click Go, Universal Volume Manager, and then Path Operation on the menu bar of the Storage Navigator main window. Figure 4-5 Path Operation Window The Path Operation window consists of: • Path Operation Tree (left of the window) The left pane of the window is composed of a tree, and a drop-down list which is used to switch the display of the tree.
The Status column does not display any status when you open the Path Operation window, because to display the cross-subsystem path status takes longer than displaying other items in the window. Note: To update the all items in the window including the Status column, make sure the button name is Status: Enable, then click File and Refresh on the menu bar of the Storage Navigator main window.
• Apply button Applies the settings in the Preview dialog box to the local storage system. When the settings are applied successfully, they are removed from the Preview dialog box and the settings in blue and italics in the Path Operation window is displayed normally. When the settings are not applied, the error messages are displayed and the settings in blue and italics remain displayed in the Port Operation window. To refer to the error detail, click Preview to open the Preview dialog box.
When you select Fibre - External Subsystem from the drop-down list, the following items are displayed in the tree: • – Product name of the external volume: The product name of the external storage system which is connected by Universal Volume Manager is displayed as a root node. The display format is "Vendor name: Product name (Serial number)". – WWN: The WWNs of the external storage system is displayed below the product name of the external storage system.
• – Margin: The additional wait time (in seconds) to FLI_TOV (FLOGI wait time) or PLI_TOV (PLOGI wait time). This value is automatically set by Universal Volume Manager. You cannot change the value. As a result, the sum of FLI_TOV time and the margin time, or the sum of PLI_TOV time and the margin time is set as a total wait time. – Status: Status of the cross-subsystem path. Table 4-7 shows the displayed statuses.
Path Operation List (When Product Name is Clicked) When you click a product name in the Path Operation tree, WWN which indicate the port in the external storage system is displayed in the list. Figure 4-7 Path Operation List when Product Name is Clicked The Path Operation list consists of: • WWN The following items are displayed: • – WWN: WWN indicating the port in the external storage system that the connection setting is completed.
Path Operation List (When Port or WWN is Clicked) When you click a port or WWN in the Path Operation tree, a cross-subsystem path is displayed in the list. Figure 4-8 Path Operation List when Port or WWN is Clicked The Path Operation list consists of: • Cross-subsystem Paths The following items are displayed: • – Port: external port in the local storage system. – WWN: WWN indicating the target port in the external storage system. – Vendor: vendor name of the external storage system.
Port Operation Window The Port Operation window enables you to check the settings of ports and set the port attributes. To display the Port Operation window, click Go, Universal Volume Manager, and then Port Operation on the menu bar of the Storage Navigator main window. Figure 4-9 Port Operation Window The Port Operation window consists of: • Port Operation Tree (left of the window) The left pane of the window is composed of a tree, and a drop-down list which is used to switch the display of the tree.
• Preview button (lower right of the window) When you click Preview, the Preview dialog box is displayed and you can confirm the contents which was set in the list of the Port Operation window. The contents displayed in the Preview dialog box have not been applied to the local storage system, yet. • Apply button Applies the settings in the Preview dialog box to the local storage system.
• – Initiator: When you click Initiator, the ports set as the initiator port (used for TrueCopy, TrueCopy for IBM z/OS, Universal Replicator, Universal Replicator for IBM z/OS, and so on) are displayed in the list. – RCU Target: When you click RCU Target, the ports set as the RCU target port (used for TrueCopy, TrueCopy for IBM z/OS, Universal Replicator, Universal Replicator for IBM z/OS, and so on) are displayed in the list.
Right-click a row in the Port Information to perform the following operations from the pop-up menu. Table 4-10 Pop-up Menu in the Port Information Pop-up menu 4-22 Description Change to External Allows you to change the selected port attribute to external. Change to Target Allows you to change the selected port attribute to target.
5 Performing Universal Volume Manager Operations This chapter describes setting the external volume using Universal Volume Manager.
Overview of Setting Operations The following figure illustrates the flow chart of the setting operations, which make external volumes usable from a host, by using Universal Volume Manager. Prepare a volume in the external storage system. (Setting on the external storage system site) Set the port of the external storage system. (Setting on the external storage system site) Set the port of the local storage system. (Port Operation window) Map the external volume.
5. Perform the following operation according to the emulation type that you set for mapping. – If you select the emulation type of mainframe, you need to format the volume or perform the Write to Control Blocks operation using Virtual LVI/LUN (VLL). For the procedure to format the volume and perform the Write to Control Blocks operation, see the Virtual LVI/LUN and Volume Shredder User’s Guide. – If you select the emulation type of open-system, you need to define LU paths to a host using LUN Manager.
Note: To set multiple ports to external ports at a time, select and rightclick all the ports you want to set. 4. Click Change to External in the pop-up menu.. In the Port Operation list, the attribute of the selected port is changed to External, and the row of the selected port is displayed in blue italics. 5. Verify the settings in the Preview dialog box. 6. Click Apply in the Port Operation window. The settings are applied to the local storage system and the Port Operation window is displayed normally.
Caution: Do not specify 01 for the LDKC number when you map a volume of which the emulation type is 3380 series except for 3380-3, 3380-3A, 33803B, 3380-3C. Before you apply the mapping configuration, make sure the LDKC number which is automatically assigned is 00. Note: Before you map the external volume, check whether any application (for example, Command Control Interface) is using the command device. If there is, stop the application. To map the external volume automatically: 1.
Mapping an External Volume Manually After setting the attribute of the port used for Universal Volume Manager to the external port, you are enabled to map the external volume as an internal volume. Caution: Do not specify 01 for the LDKC number when you map a volume of which the emulation type is 3380 series except for 3380-3, 3380-3A, 33803B, 3380-3C. Note: Before you map the external volume, check whether any application (for example, Command Control Interface) is using the command device.
7. In the Add Volume dialog box, right-click the external volume that you want to map. Note: You can select multiple external volumes to make the same settings to them at a time. When you map LDEVs, you can select the multiple external volumes which have the same emulation type. 8. Click each command in the pop-up menu and make the settings in the resulting dialog box. Execute the operations in the following order (a and then b).
14. Click OK to close the SSID dialog box. You are returned to the Volume Operation window. The settings are displayed in blue italics. 15. Verify the settings in the Preview dialog box. 16. Click Apply in the Volume Operation window. The settings are applied to the local storage system and the Volume Operation window is displayed normally. When an error occurs, an error message is displayed. Verify the details in the Preview dialog box.
The Add Volume dialog box consists of: • • List – Characteristic1: identification number of the external volume. – ExG: external volume group number and its sequential number. – Emulation Type: emulation type of the external volume. – LDEV: LDKC:CU:LDEV number which is assigned to the external volume. – Number of LDEVs: number of LDEVs which are actually created in the external volume. – SLPR/CLPR: SLPR and CLPR used to access the external volume.
Set External Volume Parameter Dialog Box The Set External Volume Parameter dialog box allows you to set the external volume parameter. The Set External Volume Parameter dialog box is displayed when you right-click the external volume in the Add Volume dialog box and click the Set External Volume Parameter in the pop-up menu. Figure 5-3 Set External Volume Parameter Dialog Box The Set External Volume Parameter dialog box consists of: • ExG (1-16384) Group number of the connected external volume.
• Number of LDEVs You can select the maximum number of LDEVs which can be created in the external volume when you map the external volume. The number of LDEVs that can be created in the external volume is different corresponding to the capacity supported by the emulation type specified in the Emulation Type.
Figure 5-4 LDEV Mapping (Auto) Dialog Box The LDEV Mapping (Auto) dialog box consists of: • SLPR Limited To restrict the CU in the CU drop-down list to the CU which belongs to the SLPR, select the Limited. To display all the CU in the CU drop-down list without any restriction, select the Unlimited. By default, the Limited is selected. • LDKC drop-down list You can select the LDKC number of the local storage system to which you want to map the external volume.
• LDEV Map LDEV map allows you to allocate the LDEV number to each LDEV by clicking cells in a table. Each cell in the LDEV map represents an internal volume. In the LDEV map, the horizontal scale indicates tens place digit of the LDEV number, and the vertical scale indicates ones place digit of the LDEV number. Select a cell for the internal volume on the LDEV map, the selected cell turns to blue, and the LDEV number which the cell indicates is defined to the LDEV.
The LDEV Mapping (Manual) dialog box consists of: • List – ExG The external volume group number of the connected external volume, which you specified in the Set External Volume Parameter dialog box, is displayed. – LDKC:CU:LDEV You use the LDKC:CU:LDEV with the LDEV map for assigning the LDEV number. You can either map an LDEV number to each LDEV one by one, or map a numbers to multiple LDEVs at once.
Figure 5-6 SSID Dialog Box The SSID dialog box consists of: • SLPR drop-down list When the storage system is partitioned using Virtual Partition Manager, use the SLPR drop-down list. If you select the SLPR Limited check box and select the SLPR number in the SLPR drop-down list, only the SSIDs that can be used for the selected SLPR can be set in the Set SSID dialog box. If you do not select the SLPR Limited check box, you can set the SSID from all the unused SSIDs regardless of the selected SLPR number.
Figure 5-7 Set SSID Dialog Box SSID (0004-FFFE): Select the SSID from the SSID drop-down list. You can select the value for an SSID from 0x0004 to 0xFFFE. – If you have selected the SLPR Limited check box on the SSID dialog box, only the SSIDs that can be used in SLPR selected on the SSID dialog box are displayed in the drop-down list.
Example: How to Map LDEVs Manually This example shows how to map two external volumes that have the same emulation type, and create two LDEVs in each external volume. To assign the desired number to total four LDEVs that you created: 1. Select the two external volumes and right-click them in the Add Volume dialog box, and then click the LDEV Mapping (Manual) in the pop-up menu. The LDEV Mapping (Manual) dialog box is displayed. 2.
Figure 5-8 Example of LDEV Mapping (Manual) Dialog Box Note: You can also assign contiguous LDEV numbers to LDEVs using this dialog box. To assign contiguous LDEV numbers to LDEVs, select multiple LDEVs at step 2, and specify the starting LDEV number at step 3 and 4. You can set Interval if necessary. Setting the Cross-subsystem Paths You need to configure the cross-subsystem path from the internal volume to the external volume before using the external volume mapped as an internal volume.
Caution: You cannot delete all the current cross-subsystem paths to substitute newly-added cross-subsystem paths for them in one operation. To replace all the current cross-subsystem paths with newly-added crosssubsystem paths, you need to perform more than two operations and leave at least one current cross-subsystem path setting when you perform the first operation. Configure Cross-subsystem Paths Dialog Box The Configure Cross-subsystem Paths dialog box allows you to configure cross-subsystem paths.
The Configure Cross-subsystem Paths dialog box consists of: • Available Paths (Upper part of the dialog box) The following three panes are displayed from the left, – – The left pane displays the external storage systems connected to the local storage system. – Vendor: vendor name. – Product Name: product name. – Serial Number: serial number of the product.
The Port Discovery dialog box displays the list of the external ports in the local storage system. When you click the external port in the list, WWNs of the external storage system connected to the clicked external port are searched for, and that the Available Paths in the Configure Crosssubsystem Paths dialog box is updated. • Selected Paths (Lower part of the dialog box) The cross-subsystem paths that you have added in the Available Paths are displayed.
To add the cross-subsystem path to an existing path group: 1. Start Storage Navigator, and open the Volume Operation window. 2. Make sure that Storage Navigator is in Modify mode. 3. Click the path group that you want to add a cross-subsystem path in the Volume Operation tree. 4. Right-click the cross-subsystem path in Cross-subsystem Paths in the Volume Operation list. 5. Click Configure Cross-subsystem Paths in the pop-up menu. The Configure Cross-subsystem Paths dialog box is displayed. 6.
Figure 5-11 Pop-up Menu of Configure Cross-subsystem Paths Dialog Box Changing the Configured Cross-subsystem Path Priority To change the cross-subsystem path priority, use the Raise Priority command and the Lower Priority command displayed in the Configure Crosssubsystem Paths dialog box. The following is an example of procedure to make the cross-subsystem path to the currently used path by raising the priority of the cross-subsystem path: 1. Start Storage Navigator, and open the Volume Operation window.
8. Repeat the operation of the Raise Priority command until the row of the selected path is displayed in the head of the Selected Paths list and its Priority column changes to “1”. When the Priority column changes to “1”, it means the cross-subsystem path is set as the usually used one (primary path). 9. Click OK to close the Configure Cross-subsystem Paths dialog box. You are returned to the Volume Operation window. The settings are displayed in blue and italics. 10.
Changing the Cross-subsystem Path To change the cross-subsystem path, cancel the current cross-subsystem path, and configure another cross-subsystem path as a new cross-subsystem path. Replacing All the Cross-subsystem Paths with Newly-added Crosssubsystem Paths This section explains how to change all the current cross-subsystem paths to newly-added cross-subsystem paths with an example. Figure 5-12 shows the overview of the operation and the status of the crosssubsystem paths.
To replace all the current cross-subsystem paths (A and B) with newly-added cross-subsystem paths (C and D): 1. Execute the Disconnect Paths command on the cross-subsystem path A. 2. Disconnect the cable which the cross-subsystem path A uses, and connect the cable which the cross-subsystem path C uses. 3. Cancel the configuration of the cross-subsystem path A, and add the crosssubsystem path C. 4. Click Apply to apply the settings of the cross-subsystem paths A and C. 5.
LDEV Information Dialog Box The LDEV Information dialog box displays the information on the LDEVs created in the external volumes. Each row displays one LDEV information. Figure 5-13 LDEV Information Dialog Box The LDEV Information dialog box consists of: • • List – LDKC:CU:LDEV: The LDKC:CU:LDEV number of the LDEVs created in the external volume. – Emulation Type: The emulation type of the external volume set when it was mapped. – Capacity: Capacity of the external volume is displayed.
Mapping Path Information Dialog Box The Mapping Path Information dialog box displays the information on the mapping paths which connect the internal volume and the external volume. Figure 5-14 Mapping Path Information Dialog Box The Mapping Path Information dialog box consists of: • • List – Priority: Priority of the mapping path. “1” indicates the mapping path with the highest priority. – Port: The port number in the local storage system connecting to the external storage system.
Displayed Item Description Blockade The mapping path is blocked. External device setting changed The setting of the external storage system has been changed. For example, the path definition was deleted, or the external storage system itself was replaced by another device. LDEV size reduced The setting of the volume capacity of the external storage system has been changed (the volume capacity was reduced). Not ready The reply from the external storage system was NOT READY.
Turning On or Off the Storage System This section describes the procedures to turn on or off the power supply of the local storage system and the external storage system after the Universal Volume Manager operation has been started.
Note: When you want to perform the same processing of the Disconnect Subsystem command on individual volume, you can use the Disconnect Volume command. If you want to delete the external volume mapping individually, you first need to execute the Disconnect Volume command and then the Delete Volume command. • Check Paths & Restore Volume command The Check Paths & Restore Volume command checks if the defined information about the mapped external volume and the actual external volume status match.
Cautions: • After you have executed the Disconnect Subsystem command, but you need to use the mapped external volume again, execute the Check Paths & Restore Volume command. • To turn on the power supply of the external storage system to restart from the turned off status: Turn on the external storage system that contains the external volume, which is mapped as an internal volume. – Execute the Check Paths & Restore Volume command of the Universal Volume Manager.
To turn on the power supply of the local storage system to restart from the turned off status: 1. Turn on the external storage system that contains the external volume, which is mapped as an internal volume. 2. Turn on the power supply of the local storage system. Cautions: • When the local storage system is turned off after the Disconnect Subsystem command is executed, you cannot access the mapped external volume from the local storage system as you just turn the local storage system on.
To turn on the power supply of both storage systems: 1. Turn on the power supply of the external storage system. Caution: Make sure that the power supply of the external storage system is completely on and then go on to the next step. 2. Turn on the power supply of the local storage system. Caution: Make sure that the power supply of the local storage system is completely on and then go on to the next step. 3. Resynchronize all ShadowImage pairs (pairresync operations).
The following table describes operations that are required before disconnecting external volumes. Table 5-4 Operations Required before Disconnecting External Volumes If External Volume is Used in this way I/Os to the external volume from the open system host are in progress. This Operation is Required Stop the host I/Os to the volume and un-mount from the host.
Cautions: The cautions on the Disconnect Subsystem command and the Disconnect Volume command are as follows: • After you have executed the Disconnect Subsystem command or the Disconnect Volume command, click the Refresh command ( ) on the Storage Navigator main window to update the information, and check the current progress status. • When the Disconnect Subsystem command or the Disconnect Volume command is executed, the displayed information for Ext.
3. Click the product name in the Volume Operation tree. 4. Right-click the external volume that you want to change in the Volume Operation list. 5. Click Disconnect Volume in the pop-up menu. The settings are displayed in blue and italics. 6. Verify the settings in the Preview dialog box. 7. Click Apply in the Volume Operation window. The settings are applied to the local storage system and the Volume Operation window is displayed normally. When an error occurs, an error message is displayed.
Caution: After you have executed the Check Paths & Restore Volume command, check the current progress status. To refresh the displayed information, make sure the button name on the upper right of the Storage Navigator main window is Status: Enable, and click File and Refresh on the menu bar of the Storage Navigator main window.
The settings are displayed in blue and italics. 6. Verify the settings in the Preview dialog box. 7. Click Apply in the Volume Operation window. The Ext. VOL Status in the Volume Operation window changes to Checking. When the checking processing of mapping path status is completed, and the external volume can be resumed, the Ext. VOL Status changes to Normal. If the external volume can not be resumed, the Ext. VOL Status changes to Blockade.
7. Verify the settings in the Preview dialog box. 8. Click Apply in the Path Operation window. The settings are applied to the local storage system and the Path Operation window is displayed normally. When an error occurs, an error message is displayed. Verify the details in the Preview dialog box. Restoring the Paths to the External Volume (Check Paths) You use the Check Paths command to resume using the cross-subsystem path which was stopped by the Disconnect Paths command.
Changing the Cache Mode Setting of the External Volume You can change the cache mode of the external volume in the Volume Operation window. To change the cache mode of the external volume, rightclick the external volume, click the Change Cache Mode in the pop-up menu, and then click Enable or Disable. Data that is not written by the host (for example, data written by ShadowImage) is asynchronously destaged to the external storage system regardless of the Cache Mode setting.
Changing the Inflow Control Setting of the External Volume You can change the inflow control setting of the external volume in the Volume Operation window. To change the inflow control setting of the external volume, right-click the external volume, click the Inflow Control in the pop-up menu, and then click Enable or Disable. To change the inflow control setting of the external volume: 1. Start Storage Navigator, and open the Volume Operation window. 2. Make sure that Storage Navigator is in Modify mode.
5. Right-click the WWN that you want to change the setting in the Path Operation list. 6. Click Change WWN Parameter in the pop-up menu. The Change WWN Parameter dialog box is displayed. 7. Change the set parameter of the selected port on the Change WWN Parameter dialog box. 8. Click OK to close the Change WWN Parameter dialog box. You are returned to the Path Operation window. The selected items are displayed in blue and italics. 9. Verify the settings in the Preview dialog box. 10.
Editing Mapping Policy You choose mapping policy when you map an external volume as an internal volume using the Add Volume commands. This section explains how to edit the default mapping policy. To edit the mapping policy: 1. Start Storage Navigator, and open the Volume Operation window. 2. Make sure that Storage Navigator is in Modify mode. 3. Right-click Subsystem in the Volume Operation tree: 4. Click Edit Policy in the pop-up menu. The Edit Policy dialog box is displayed. 5.
• – CLPR: CLPR used for accessing to the mapped volume when the cache memory is partitioned using Virtual Partition Manager. – SLPR: SLPR that the selected CLPR belongs to. However, when the emulation type for the mainframe is selected in Emulation Type, you can only select CLPR that belongs to SLPR number 0. – Cache mode: displays if the write I/O from the host is propagated synchronously (Disable) or asynchronously (Enable) to the external storage device.
All the data in the cache memory must be written into the mapped external volume using the Disconnect Subsystem command or the Disconnect Volume command. • Whether the volume is set as a volume which configures a LUSE volume. When it is set as a volume which configures a LUSE volume, you cannot delete the external volume mapping. • Whether an LU path is set. When an LU path is set to the mapped volume, you cannot delete the external volume mapping.
– If you click No, a message asking if you want to execute the Delete Volume operation without writing the data in the cache memory into the external volume is displayed. Click OK if you want to execute the Delete Volume operation without writing the data in the cache memory into the external volume. Click Cancel if you want to cancel the operation.
5-48 Performing Universal Volume Manager Operations Hitachi Universal Storage Platform V/VM Universal Volume Manager User’s Guide
6 Using Spreadsheets for Universal Volume Manager Operations To map external volumes, you may want to use spreadsheets instead of the Storage Navigator graphical user interface (GUI). For example, when you want to map many external volumes at a time, using the spreadsheets shortens the operation time compared to when using the GUI. You can import the spreadsheets directly to the storage system using the Storage Navigator command line interface (CLI).
This chapter describes the operation that is surrounded by the thick lines. For detailed information about the other operations, see the Storage Navigator User’s Guide. Before Using Spreadsheets Available Types and Operation Tags Saving Storage System Information Mapping External Volumes (AddVolumeSetting Tag) Example of a Spreadsheet Before Using Spreadsheets Storage Navigator is required to use spreadsheets.
Table 6-2 Relationship Among the Types, Operation Tags, and Version Number Type Get Operation Tag SSID Version Number Template 05_02_01 ExternalStorage_Get_def.spd 05_02_01 ExternalStorage_AddVolumeSetting_def_.spd ExternalGroup MappedVolume VolumeOperationFibre AddVolumeSetting The above operation tags can be used only for Universal Volume Manager. In addition, other operation tags that are common for all program products can also be used in a spreadsheet.
Table 6-3 Information Saved when the SSID tag is Written Column in Spreadsheet Item Content A LDKC:CU:LDEV-LDEV The range of LDEV numbers to which the SSID is assigned. B SSID SSID. When the SSID tag is written, the information about internal volumes as well as external volumes will be saved. ExternalGroup Tag When you write the ExternalGroup tag in a spreadsheet and execute the CFLGET command, the information about external volume groups will be saved in files.
Table 6-5 Layer Information Saved when the MappedVolume Tag is Written Column in Spreadsheet Item The first layer Content Information about the external storage system. A Vendor Name of the vendor. B Product Name of the storage system. C SerialNumber Serial number of the storage system. The second layer Information about the external volume. A + Identifier. B PathGroup Path group number. C ExG External volume group number and its sequential number.
Mapping External Volumes (AddVolumeSetting Tag) You can map external volumes to the local storage system by specifying a spreadsheet that includes the AddVolumeSetting tag when you execute the CFLSET command using the Storage Navigator CLI. Write parameters required for mapping external volumes in the AddVolumeSetting tag. Parameters must be written in a hierarchical structure by using the "+" identifier.
The following table shows the parameters that can be set for the AddVolumeSetting tag. Table 6-7 Layer Column in Spread sheet AddVolumeSetting Tag Parameters Parameter The first layer Setting Range of Values Number of Characters Information about external volumes and the primary path. A PathGroup Path group number. 0 to 63231 5 decimal digits or less B Port Port number of the primary path. 1A to GR 2 digits or less C WWN WWN of the primary path.
Layer Column in Spread sheet C Parameter WWN The third layer Setting WWN of the alternate path. Range of Values Number of Characters 00000000 00000000 to FFFFFFFF FFFFFFFF 16 hexadecim al digits Information about LDEVs to be created in an external volume. A + Identifier. N/A N/A B + C LDKC LDKC number. 00 to 01 2 hexadecim al digits or less D CU CU number. 00 to FE 2 hexadecim al digits or less E LDEV LDEV number. Specify the LDEV number that is not assigned to any volume.
Layer Column in Spread sheet F Parameter Capacity Setting Capacity of the LDEV in blocks. When the emulation type is OPEN-V, specify the value in the range of 96000 and 8589934592. Range of Values Number of Characters 1 to 8589934592 10 decimal digits or less 0004 to FFFE 4 hexadecim al digits or less When the emulation type is other than OPEN-V, specify one of the following: If the capacity of the external volume is larger than the base LDEV capacity, specify the base data area capacity.
Example of a Spreadsheet This section shows an example of a spreadsheet that can be used for mapping an external volume in the following configuration: • • • • An external volume is configured as follows: – Map the volume to which 0001 is configured as a LUN that can be discovered through the primary path. – Use 1 for a path group number. – Configure E16384-4095 for an external volume group (ExG).
7 Remote Command Devices This chapter describes remote command devices.
Overview of Remote Command Devices A remote command device is a device in the local storage system to which a command device in the external storage system is mapped. As you send the CCI commands to the remote command device, you can enter these CCI commands to the command device of the external storage system to operate the CCI in the external storage system. Figure 7-1 shows an example.
Guidelines for Remote Command Devices Notices on remote command device are as follows: • • You can map a command device as a remote command device when one of the following storage systems is connected as an external storage system.
• The remote command devices are displayed in the Device column on the Volume Operation window as follows: Table 7-1 Displayed Information in Device Column for Remote Command Device Storage System Displayed Information in Device Column Universal Storage Platform V Format: "Emulation Type" + "-CM" Universal Storage Platform VM Example: OPEN-V-CM, OPEN-3-CM TagmaStore Universal Storage Platform TagmaStore Network Storage Controller Lightning 9900V series SANRISE Universal Storage Platform SANRISE Net
• Even if the status of the remote command device is normal, an error may occur when the operations or commands are performed on the remote command device. If an error occurs even though the status of the remote command device is normal, check the status of the command device of the external storage system, not the remote command device. • There are following restrictions for mapping a command device as a remote command device.
Mapping a Command Device as a Remote Command Device The command devices that can be mapped as remote command devices are displayed in the Device column of the Volume Operation window as shown in Table 7-1. To map a command device, select a command device that can be mapped and follow the procedure in Mapping an External Volume Automatically.
CL1-A Initiator Standard CL3-A External Standard CL5-A Initiator Standard CL7-A External Standard Port Block (All ports are in the Standard mode.) CL1-A Initiator MIX CL3-A [1-A 2nd] External MIX CL5-A Initiator MIX CL7-A [5-A 2nd] External MIX Port Block (All ports are in the Initiator/External MIX mode.
Open-system Host 1 Open-system Host 2 LAN CCI CCI System 2 System 1 - MCU - Local Storage System Target Port - RCU - External Storage System Port of Initiator/External MIX Mode RCU Target Port P-VOL Target Port S-VOL TrueCopy or Universal Replicator Pair Legend : Remote command device : Command device : Logical device : Lines showing the concept of mapping Figure 7-3 Example of Using TrueCopy or Universal Replicator with Remote Command Device Procedure to Use Initiator/External MIX Mode T
For procedure to set the Initiator/External MIX mode, see the LUN Manager User’s Guide. 3. Connect the cable to the port, and connect a storage system to be used as an MCU and local storage system and a storage system to be used as an RCU and external storage system. 4. Map the command device as the remote command device. Note: Only the command device can be recognized when the discovery operation is performed using the external port of the Initiator/External MIX mode. 5.
7-10 Remote Command Devices Hitachi Universal Storage Platform V/VM Universal Volume Manager User’s Guide
8 Troubleshooting This chapter provides troubleshooting information for Universal Volume Manager.
Troubleshooting If you have a problem with the Storage Navigator computer or Storage Navigator software, see the Storage Navigator User’s Guide for troubleshooting information. Table 8-1 provides general troubleshooting instructions for Universal Volume Manager operations. If you need to call the Hitachi Data Systems Support Center, see Calling the Hitachi Data Systems Support Center for instructions.
Error The displayed statuses are as follows: Corrective Action Unknown Status: The status of the path is unknown. Reaction: The status of the path cannot be identified. Please call the Hitachi Data Systems Support Center. Blockade Status: The external port is blocked. Reaction: The external port is blocked because of the microprogram replacement or package replacement or some other factor. Check the status of the local storage system.
Error Corrective Action Response error Status: The external storage system is in the blocked status caused by the abnormal reply (Response). You may not be able to access the device of the external storage system. Or data protection may be set on the device of the external storage system. Reaction: The port of the external storage system is recognized. Check the setting and status of the external storage system. If you cannot restore the path, call the Hitachi Data Systems Support Center.
Error Corrective Action Unavailabl e Status: The reply of the external storage system was Unavailable. The external storage system demands to change the connected port. Once the status becomes Unavailable, the primary path is changed to the alternate path that is in the Standby status. When the primary path has been changed, the status of the path becomes Normal. Reaction: If the path is not changed over properly, check the status of the external storage system.
Error The Disconnect Subsystem command or the Disconnect Volume command is executed, but the progress status information is not updated. Corrective Action Click Refresh ( ) command on the Storage Navigator main window while the Status: Enable button is displayed. If the progress information about the Cache Destage status is not updated even though you have updated the information, call the Hitachi Data Systems Support Center.
A Connecting External Storage Systems TagmaStore AMS/WMS Storage System System Parameters for Connecting TagmaStore AMS/WMS Storage System The table below explains whether to specify system parameters when making settings on ports on the TagmaStore AMS and WMS storage systems. Note: When you connect a TagmaStore AMS or WMS storage system, use LUN Manager to set the data transfer speed of the external port which you use to a fixed value other than the Auto.
Window Names Parameters Parameter Settings RAM Microprogram Version You can either specify this parameter or omit specifying this parameter. Option You can either specify this parameter or omit specifying this parameter. Operation if the processor failure occurs Specify this parameter to Reset of occurred. WEB Title You can either specify this parameter or omit specifying this parameter. Write and verify mode Set this parameter to ON.
Relationship between WWN of Port and Controller (AMS/WMS) When the external storage system is TagmaStore AMS or WMS, you can identify the controller (controller 0 or controller 1) from the WWN of the port. The following table describes the relationship between WWN of port and controller.
Path Status and Examples of Recovery Procedure (AMS/WMS) This section describes errors that require recovery operation on the external storage system side when the path status is not normal. When the path status is not normal, see the following table to recover the path status. If you cannot restore the path, call the Hitachi Data Systems Support Center (see Calling the Hitachi Data Systems Support Center).
Thunder 9500V Storage System System Parameters for Connecting Thunder 9500V The table below explains whether to specify system parameters when making settings on ports on the Thunder 9500V storage system. Table A-5 System Parameter Settings (9500V) Window Names System Startup Settings Parameters Parameter Settings Start Attribute Single Mode Specify this parameter when Thunder 9500V storage system is in the one controller configuration.
Window Names Controller Option Host Connection Mode Parameters Parameter Settings LIP Reset Mode You can either specify this parameter or omit specifying this parameter. RS232C Error Information Outflow Mode You can either specify this parameter or omit specifying this parameter. Write and verify mode Set this parameter to ON. Host Connection Mode 1 Set this parameter to Standard Mode. Host Connection Mode 2 Specify HISUP Mode. Note: Do not specify any other parameters.
The following table describes the relationship between WWN of port and controller.
Path Status and Examples of Recovery Procedure (9500V) This section describes errors that require recovery operation on the external storage system side when the path status is not normal. When the path status is not normal, see the following table to recover the path status. If you cannot restore the path, call the Hitachi Data Systems Support Center (see Calling the Hitachi Data Systems Support Center).
USP V/VM Storage System When you connect a USP V/VM storage system as the external storage system, you need to set the port to the host group for the Windows hosts (host mode 0C: Windows, host mode 2C: Windows Extension). Also, the port attribute must be the target port or the RCU target port. Path Status and Examples of Recovery Procedure (USP V/VM) This section describes errors that require recovery operation on the external storage system side when the path status is not normal.
TagmaStore USP/NSC Storage System When you connect a TagmaStore USP or NSC storage system as the external storage system, you need to set the port to the host group for the Windows hosts (host mode 0C: Windows, host mode 2C: Windows Extension). Also, the port attribute must be the target port or the RCU target port. Setting the Host Mode Option When a Volume of More Than 2 TB Is Used (USP/NSC) If a volume, which has the capacity of more than 2TB, is mapped as an external volume, host mode option No.
Path Status Cannot detect port Examples of Recovery Procedure There is a problem with connection to the external storage system. The possible causes are: The fibre cable is not physically connected in the proper way. The setting of the topology does not match between the external port and the target port. If the external storage system is connected through switches, the settings for the switches may not be appropriate.
Path Status Cannot detect port Examples of Recovery Procedure There is a problem with connection to the external storage system. The possible causes are: The fibre cable is not physically connected in the proper way. The setting of the topology does not match between the external port and the target port. If the external storage system is connected through switches, the settings for the switches may not be appropriate.
Path Status Cannot detect port Examples of Recovery Procedure There is a problem with connection to the external storage system. The possible causes are: The fibre cable is not physically connected in the proper way. The setting of the topology does not match between the external port and the target port. If the external storage system is connected through switches, the settings for the switches may not be appropriate.
Path Status and Examples of Recovery Procedure (SVS200) This section describes errors that require recovery operation on the external storage system side when the path status is not normal. When the path status is not normal, see the following table to recover the path status. If you cannot restore the path, call the Hitachi Data Systems Support Center (see Calling the Hitachi Data Systems Support Center).
EVA Storage System System Parameter Settings for Connecting EVA Storage System When you connect an EVA storage system as an external storage system, set the system parameters of the EVA storage system according to the following table. For the system parameters that are not in the following table, refer to the manuals of the EVA storage system and set the parameters appropriately for the connecting configuration.
EVA HostGroup-1 Local Storage System Switch External Port 1 EVA Port A External Port 2 EVA Port B Figure A-1 A-16 LUN 1 World Wide LUN Name 600508b4 001028cb 00005000 011d0000 LUN 2 World Wide LUN Name 600508b4 001028cb 00005000 01200000 HostGroup-2 LUN 1 World Wide LUN Name 600508b4 001028cb 00005000 01230000 LUN 2 World Wide LUN Name 600508b4 001028cb 00005000 012c0000 Configuration Example for which Logical Volumes Cannot be Identified only by Characteristic Connecting External Storage Sy
Note on Behavior of Alternate Path when EVA Storage System is Connected When an EVA storage system is connected, the behavior of the alternate path differs depending on the microprogram version of the EVA storage system. If the storage system type is EVA3000/5000, the behavior of the alternate path differs between the EVA storage systems of the microprogram version 4.000 or later and the EVA storage systems of the earlier microprogram versions.
System Parameter Settings for Connecting Sun StorageTek FlexLine 380 When you connect a Sun StorageTek FlexLine 380 as an external storage system, set the system parameters of the Sun StorageTek FlexLine 380 according to the following table. For the system parameters that are not in the following table, refer to the documentation of the Sun StorageTek FlexLine 380 and set the parameters appropriately for the connecting configuration.
System Parameter Settings for Connecting EMC CLARiiON CX600 When you connect an EMC CLARiiON CX600 as an external storage system, set the system parameters of the EMC CLARiiON CX600 according to the following table. For the system parameters that are not in the following table, refer to the documentation of the EMC CLARiiON CX600 and set the parameters appropriately for the connecting configuration.
A-20 Connecting External Storage Systems Hitachi Universal Storage Platform V/VM Universal Volume Manager User’s Guide
B Required Volume Capacity for Each Emulation Type When you map an external volume as an internal volume, you need to specify the emulation type for the mapped volume. The maximum capacity of an external volume depends on the specified emulation type. How to Figure Out Required External Volume Capacity The capacity required for the LDEV to be mapped is the total capacity of the data area for storing the actual user data and the control information area for storing the control information.
When the capacity of the external volume is less than the base LDEV capacity of the emulation type, one Custom-sized Volume (CV) is created in the external volume as you map the volume. When the capacity of the external volume is more than the base LDEV capacity of the emulation type, the external volume is divided into multiple LDEVs, each of which have the base LDEV capacity.
Control Information Area Capacity Minimum LDEV Capacity Figure B-1 Minimum Data Area Capacity Base Data Area Capacity Base LDEV Capacity Idea of LDEV Capacity External Volume Mapped External Volume LDEVs of Mapped External Volume 4,818,240 (LBA) (Blocks) 4818240 2,410,612,640 (Blocks) 334 LDEVs 1,610,612,640 (Blocks) 301983744 (LBA) 1,320,480 (LBA) (Blocks) 3252864 800,000,000 200000000(Blocks) (LBA) When the capacity of the external volume is 2,410,612,640 (Blocks), and this external volume is
Capacity List for Each Emulation Type This section explains the LDEV capacity and volume capacity for each emulation type in the units of blocks and cylinders. The numbers of cylinders are calculated from the following formulas. For 3380 mainframe volumes: 1 cylinder = 1,440 blocks For 3390 mainframe volumes: 1 cylinder = 1,740 blocks The minimum data area capacity, the base data area capacity, and control information area capacity for each emulation type are listed in the Table B-2.
Emulation Type Minimum Data Area Capacity Base Data Area Capacity Control Information Area Capacity 3390-9B 87,000 50 17,429,580 10,017 43,500 25 3390-9C 87,000 50 17,429,580 10,017 43,500 25 3390-L 87,000 50 57,002,400 32,760 40,020 23 3390-LA 87,000 50 57,002,400 32,760 40,020 23 3390-LB 87,000 50 57,002,400 32,760 40,020 23 3390-LC 87,000 50 57,002,400 32,760 40,020 23 3390-M 87,000 50 114,004,800 65,520 92,220 53 3390-MA 87,000 50 114,004,800 65,5
Emulation Type Base LDEV Capacity Blocks B-6 Cylinders Minimum LDEV Capacity Blocks Cylinders Maximum Capacity of External Volume Blocks Cylinders Maximum Number of LDEVs* 3390-3A 5,820,300 3,345 97,440 56 1,946,156,94 0 1,118,481 334 3390-3B 5,820,300 3,345 97,440 56 1,946,156,94 0 1,118,481 334 3390-3C 5,820,300 3,345 97,440 56 1,946,156,94 0 1,118,481 334 3390-3R 5,820,300 3,345 97,440 56 1,946,156,94 0 1,118,481 334 3390-9 17,473,08 0 10,042 130,500 75 1,946
* This number refers to the number of LDEVs when an external volume with maximum capacity is mapped.
B-8 Required Volume Capacity for each Emulation Type Hitachi Universal Storage Platform V/VM Universal Volume Manager User’s Guide
C Adjusting Volume Capacities for Pairs When you create a pair, the capacity of S-VOL must be the same as that of P-VOL. To set a desired volume to a pair, you may need to adjust the capacity of volume. This section describes the procedure to adjust the volume capacity. When copying data from an external storage system (when you want to use an external volume as P-VOL) For “A”, “B”, and “C” in the following description, see Figure C-1. To adjust the capacity of the USP V/VM volume to create a pair: 1.
Notes: • When you make the CV that has the same capacity as the mapped external volume (B) using the VLL function, make the capacity of CV according to the Blocks capacity that is displayed in the Capacity column on the LDEV Information dialog box of Universal Volume Manager.
2. Check the capacity of the internal volume (B) where the external volume(A) is mapped. If the capacity of the mapped external volume (B) is not same as the copy source volume (C), use the VLL function to create a CV that has the same capacity as the copy source volume (C) out of the volume (B). 3. Create a pair. Step1 Step 2 Step 3 Create Pair External Volume (A) Mapped External Volume (B) Figure C-2 Make CV that has the same capacity as the volume (C) using the VLL function.
C-4 Adjusting Volume Capacities for Pairs Hitachi Universal Storage Platform V/VM Universal Volume Manager User’s Guide
Acronyms and Abbreviations AMS ATA adaptable modular storage Advanced Technology Attachment standard CHA CV channel adapter custom-sized volume ESCON® ExG Enterprise System Connection (IBM trademark for optical channels) external volume group FICON fibre connection GB gigabyte (see Convention for Storage Capacity Values) HDD hard disk drive IBM® International Business Machines KB kilobyte (see Convention for Storage Capacity Values) LDEV LDKC LU LUN logical logical logical logical MB MCU M
SSID SVP SVS S-VOL TB storage subsystem ID service processor Storage Virtualization System secondary volume terabyte (see Convention for Storage Capacity Values) USP Universal Storage Platform VDEV VLL VMA VOL virtual device Virtual LVI/LUN volume management area volume WWN World Wide Name Acronyms-2 Acronyms and Abbreviations Hitachi Universal Storage Platform V/VM Universal Volume Manager User’s Guide
Index A O Attributes list of emulation type, 2-9 Block management, ExG, 2-9 operation tags AddVolumeSetting, 6-8 ExternalGroup, 6-6 MappedVolume, 6-7 SSID, 6-6 C P B Path Operation Window, 4-12 Port Operation Tree, 4-20 Port Operation Window, 4-19 Preview, 4-10 Cache logical partition, 2-10 memory, 2-10 Channels escon or ficon, 2-19 Concept, 2-3 R RCU Target, 4-21 D S Destaging data, 2-10 Initiator, 4-21 spreadsheets example, 6-11 mapping external volumes, 6-8 operation tags, 6-5 saving stor
Index-2 Index Hitachi Universal Storage Platform V/VM Universal Volume Manager User’s Guide
Hitachi Data Systems Corporate Headquarters 750 Central Expressway Santa Clara, California 95050-2627 U.S.A. Phone: 1 408 970 1000 www.hds.com info@hds.com Asia Pacific and Americas 750 Central Expressway Santa Clara, California 95050-2627 U.S.A. Phone: 1 408 970 1000 info@hds.com Europe Headquarters Sefton Park Stoke Poges Buckinghamshire SL2 4HD United Kingdom Phone: + 44 (0)1753 618000 info.eu@hds.
