HP 3PAR-to-3PAR Storage Peer Motion Guide HP Part Number: QL226-97008 Published: June 2013
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Contents 1 Overview of HP 3PAR-to-3PAR Storage Peer Motion........................................5 About Peer Motion ...................................................................................................................5 How Peer Motion Works............................................................................................................5 Migration Types........................................................................................................................
Viewing Migration Data Information..........................................................................................38 Available/Imported Hosts Screen.........................................................................................38 Available/Imported Host Sets Screen....................................................................................39 Available/Imported Linked Hosts Screen...............................................................................
1 Overview of HP 3PAR-to-3PAR Storage Peer Motion About Peer Motion HP 3PAR Peer Motion controls the migration of a host and its data from a source system to a destination system with as little disruption to the host as possible. With Peer Motion, you can copy the virtual volumes and system configuration information to a new system with no changes to host configurations, no loss of access by a host to its data in an online migration, and only a minimal outage during a minimally disruptive migration.
hosts. The destination system non-disruptively moves the volumes from the source system while servicing I/O requests from the hosts. • Offline — With offline migration, volumes are not actively exported, and there is no access to the data throughout the migration process. The hosts can be exported any time after the migration by using the HP 3PAR OS export commands.
5. 6. 7. Create and edit the domains, hosts, CPGs, and so on, on the destination system. Launch the Data Migration wizard to perform volume migration from the source system to the destination system. After the data migration is successful, perform the Remove PM Configuration operation on the source system. Minimally Disruptive Migration Procedure When migrating Windows Server 2012 clusters, maintenance mode must be set on the cluster disks to clear SCSI reservations on these disks.
2 Preparing for Data Migration System Requirements Installation Requirements The following requirements must be satisfied to install Peer Motion: • There must be access to the HP Software Depot at http://www.software.hp.com. • The host computer must have access to the destination system. • The HP 3PAR user account must have Super user rights. • The source and destination systems must not already be in a Peer Motion configuration.
WARNING! On Windows Server 2012, Windows Server 2008 R2 and non-R2, do not use the mpclaim CLI command or attempt to display the MPIO information via the Disk Management GUI during the Peer Motion migration admitvv stage. Doing so will result in the host becoming unresponsive. Network and Fabric Zoning Requirements • The software runs as a client process on the host. Therefore, the host must remain connected to the destination system during the data migration process.
Pre-Migration Constraints 10 • The source system in a Peer Motion operation should run HP 3PAR OS 2.3.1, 3.1.1, or 3.1.2. The destination system must run HP 3PAR OS 3.1.1 or 3.1.2. That system can be an F-, a T-, or a V-class. E-class and S-class systems can only be source systems, because they cannot run HP 3PAR OS 3.1.1 or 3.1.2. • Remote Copy groups and their synchronization tasks that exist on the source system are not created by Peer Motion on the destination system; this has to be done manually.
3 Using the Peer Motion Manager The HP 3PAR Peer Motion Manager enables users to perform the following Peer Motion operations: • Display the source and destination configurations. • Display volumes that are to be migrated, admitted, and imported. • Display hosts, users, and domains that are to be migrated. • Display the LDAP configuration if it is available. • Create a Peer Motion configuration. • Copy storage settings and configurations from the source system to the destination system.
Creating a Peer Motion Configuration To use the Create PM Configuration wizard, the following conditions are required: • Storage systems must meet all the requirements in the HP 3PAR-to-3PAR Data Migration Guide (http://www.hp.com). • Super user role. • At least one available source system and destination system that are not in a Peer Motion configuration. Perform the following tasks before using the wizard: • Choose two host ports on the source system.
2. Click the icon and select a destination system. If you attempt to create a peer motion configuration between an encrypted source system and a non-encrypted destination system, a warning dialog appears indicating data migrated to the non-encrypted system is no longer be protected by encryption. Click Yes to create the configuration, or click No to return to the Select Systems screen with the destination system reset. 3. Click Next to go to the Set Up Connections page.
2. Select Pick a pair for , then select the port you want paired with the destination port. (Peer ports display as bold.) NOTE: If the host ports are not already configured, you can configure them in the Port Parameters area. NOTE: At any time, you can view host and peer port WWNs by clicking “Show Port WWNs” (page 14) on the Set Up Connections screen. 3. Select Apply. (This is enabled when the port parameters are modified.
Port Configuration and Zoning After zoning is complete, click OK, and click Verify Configuration when your are returned to the Set Up Connections screen. If the configuration is successful, a message to that effect is displayed. If the configuration was not successful, a message that describes the issue is displayed.
Copying Storage Settings and Configurations To use the Copy Storage Settings and Configurations wizard, the following conditions are required: • Super user role • At least one storage system to copy • Any valid Peer Motion configuration that has source and destination systems This wizard guides you in copying they following storage settings and configurations from the source system to the destination system: • Domain sets • Domains • Host sets • Hosts • Users • LDAP configuration • NTP co
Copy Storage Settings and Configurations This wizard allows you to copy storage settings for: • Domains • Domain sets • Hosts • Host sets The wizard allows you to copy storage configurations for: • Users • Domains • LDAP • NTP server • DNS server (OS version 3.1.2 and higher) • SNMP • Syslog parameters To copy storage settings and configurations from the source system to the destination system: 1. To copy storage settings, select the Copy all listed storage settings checkbox. 2.
Migrating Data To use the Migrate Data wizard, the following conditions are required: • Super user role • Peer Motion license • Any Peer Motion configuration that includes a source and destination system whose status is Normal and that has no other admitted or importing volumes. Perform the following tasks before using the wizard: • Configure the data migration process by using the Create PM Configuration wizard.
2. If the system is using online migration or minimally disruptive migration, select the Host, Host Set, or Linked Hosts for which you want to migrate virtual volumes to the destination system. NOTE: All virtual volumes exported to overlapping hosts (Linked Hosts) must be exported. For example: VV1 is exported to Host1, VV2 is exported to Host2 and Host3, and VV3 is exported to Host1 and Host3. To migrate VV1, you must also migrate VV2 and VV3 because the hosts they are exported to overlap.
3. Select a User CPG (required) and Copy CPG (optional). NOTE: If there is no CPG available for the specified domain, you must exit the wizard and create the CPG first. 4. If you selected Copy CPG, you have the option of selecting the Create virtual copies after importing volumes check box. a. Select Suffix or Full Name. b. Enter a suffix or name in the text box. 5. If not already selected, select the virtual volumes in the 1.
2. Click Verify. If the system zoning is correct, a confirmation message appears. If the zoning is incorrect, a message appears that describes the issue. 3. 4. Click OK to exit the Verify dialog box. Click Continue. After the systems are zoned correctly, the importing tasks start. Minimally Disruptive Data Migration Confirmation 1. 2. 3. 4. 5. Shut down the host system. (You must use Shut Down, not Restart.) Click Verify. Click OK to exit the Verify dialog box. Click Continue.
based on your system setup and the data migration selections you made for the Peer Motion configuration. • Online – Used to migrate virtual volumes that are exported to a host. Requires unzoning the host system from the source system. • Minimally disruptive – Used to migrate virtual volumes that are exported to a host. Requires shutting down the host system for a short period of time. Additionally, the destination system must be running OS version 3.1.2 or later.
5. 6. If you are using offline migration, click Finish to create the peer volumes and start the import volumes task. If you are using online or minimally disruptive migration, click Finish to create the peer volumes. One of the following confirmation dialogs appears, depending on the migration type: “Online Data Migration Confirmation” (page 20) “Minimally Disruptive Data Migration Confirmation” (page 21) After the systems are zoned correctly, the importing tasks start.
To remove peer volumes: 1. Select Peer Motion in the Manger Pane. 2. In the Common Actions panel, click Remove Peer Volumes. The Remove Peer Volumes dialog box appears. 24 3. Select the Select to also delete check box if you want to delete any listed volumes currently exported to a host and listed volumes that are part of a volume set. If this check box is selected, a warning dialog appears . Click Delete to remove the volumes. 4. Click OK.
Post Migration Cleanup The Post Migration Cleanup feature does the following: • Unexport all Peer Motion-migrated volumes from the migration host. • Remove the VLUNs associated with the volumes being unexported. • Remove the migration host from the source system. NOTE: The migration host is an interim host created by the Peer Motion process. Therefore, migration cleanup is not complete until the migration host is removed from the source system.
4. Click OK. When the migration host exists on the source system, clicking OK removes the migration host . (The Remove PM Configuration dialog box that appears depends on whether the migration host exists on the source system.
Viewing a Peer Motion Configuration To view the current Peer Motion configuration: 1. Select a storage system in the Management Tree. 2. Select Peer Motion in the Manager Pane. The Peer Motion Configuration tree node appears. 3. The Peer Motion Configuration window contains a Summary tab, a Tasks tab, and an Alerts tab.
Summary Tab The Summary tab is divided into a left pane and a right pane. The left pane displays the Peer Motion topology in one of the following views. • Overview – Displays the source and destination systems, the direction of data migration, the number of ports and their status, and the View Physical Connectivity check box. • Physical Connectivity View – Displays the source and destination systems, the host and peer ports, and port connectivity.
Group Field Description • Incompatible destination system version • Unsupported version of source or destination system • Unknown New Alerts Displays the number of new alerts and their severity for both source and destination systems. The severity state can be one of the following: • Fatal • Critical • Major • Minor • Degraded • Info • None Select the alert severity to go to the Peer Motion Alerts screen. Performance & Reports Shows RW throughput statistics of the source and destination ports.
Group Detailed Status Field Description Progress The task progress, if currently running. Start Time The time the task started. Finish Time The time the task finished. Duration The amount of time it took to complete the task. Provides detailed information for the task by time increments. Alerts Tab The Alerts screen is divided into a list pane and a detail pane. The list pane displays alert information associated with the selected Peer Motion Configuration.
Viewing Port Information To view the Ports screen: 1. Select Peer Motion in the Manager Pane. 2. Select Ports under Peer Motion Configuration in the Peer Motion tree. The Ports screen shows the topology between the source and destination system ports, a list pane, and a detail pane. The port topology area displays the source and destination systems, the host and peer ports, and the ports connectivity.
The Summary Screen Detail Pane The detail pane of the Summary screen displays the following information. Group Field Description General Position The port location in Node:Slot:Port format. Port WWN Port World Wide Name. Node WWN Node World Wide Name. Type Indicates whether the port is FC, iSCSI, RCIP, or RCFC. Rate Rate that data can be transferred over the port (1 Gbps, 2 Gbps or 4 Gbps). When there is no specified value, no connection exists.
Group Field Description Configured Rate For RCIP ports. The configured data transfer rate. A value of 0 indicates that no data is being transferred. Rate For iSCSI ports. Data transfer rate. A value of 0 indicates that no data is being transferred. TCP Port The TCP port number used by the iSCSI card. Duplex (For RCIP) The duplex speed, Half or Full. Adapter Type For RCIP ports. Model of the adapter that contains the port (for example, Intel PRO/1000MT).
Viewing Storage Settings and Configurations The Storage Settings and Configurations portion of the Peer Motion tree node contains nodes for Hosts and Security & Domains. Hosts Node When the Hosts node is selected in the Peer Motion tree, a Hosts tab and a Host Sets tab is displayed in the Management Window. Storage Settings and Configuration Hosts Screen The Hosts screen displays source hosts and destination hosts side by side.
The following information is displayed for both Source and Destination systems: Column Description Name The host set name. Domain The domain (if any) the host set is associated with. Hosts The number of hosts in the host set. Total Exported Size The total size of the exported volumes (in GiB). Comments User-created comments. Security & Domains Node The Security & Domains screen displays the security settings of the source and destination systems.
The Summary Tab displays the following information for the Source and Destination systems: Group Field Description General Users The number of users on the system. LDAP configuration Whether the system is configured for LDAP authentication. Domains The number of domains on the system Domain Sets The number of domain sets on the system. User Roles Capacity Global/Domain Browse The number of users with Browse permission. Create The number of users with Create permission.
Security & Domains Node Domains Tab The following information is displayed for both Source and Destination systems: Column Description Domain The domains on each system. Set The domain sets on each system. Creation Time The date and time the specified domain was created. Comments User-created comments. Security & Domains Node Domain Sets Tab NOTE: This tab is hidden if the source and destination systems do not have a domain license or do not support the object set feature.
Viewing Migration Data Information To view migration data: 1. Select Peer Motion in the Manager Pane. 2. Select Migrate Data under Peer Motion Configuration in the Peer Motion tree. The Management window displays the available, admitted (peer), importing, and imported hosts and virtual volumes for the migration host system, along with capacity information for volumes in imported and importing states. Selecting a highlighted item takes you to the corresponding screen.
The list pane provides the following in formation: Column Description Name The name of a host on the source system. Domain The domain (if any) of which the host is a member. Host Ports The number of host ports on the system. Storage System Ports The number of storage system ports. Node ID(s) The port node IDs. Persona The persona information for the specified port (for example, 1–Generic). Volumes Exported The number of exported volumes on the system.
The list pane provides the following information: Column Description Name The name of a host set on the source system. Domain The domain (If any) to which the host set belongs. Hosts The number of host on the system. Total Reserved Size The total amount of reserved space (in GiB). Total Exported Size The total size (in GiB) of the exported volumes. Comments User-created comments. Available/Imported Linked Hosts Screen The Linked Hosts screen is divided into a list pane and a detail pane.
The list pane displays a 1:1 mapping between the source and destination hosts. (The source system must be connected for the source information to be displayed.) Column Description Source Host The name of the source host. Source System The name of the source system. Source Volumes Exported The number of volumes exported from the source system. Source Total Exported Size The total size (in GiB) of the volumes exported from the source system. Destination Host The name of the destination host.
Column Description Destination Host Set The name of the destination host set. Destination Domain The name of the destination domain (if any). Destination Host The number of destination hosts. Destination Total Exported Size The total size (in GiB) of the volumes exported to the destination system. Minimally Disruptive Migration Indicates if the migration is minimally disruptive.
The screen is divided into a list pane and a detail pane. A blue arrow icon to the left of a volume name in the list pane indicates the I/O endpoint on the Available Volumes screen. A green arrow represents the I/O endpoint on the Imported Volumes screen. The screen is divided into a list pane and a detail pane. Admitted/Importing Volumes Screen The Admitted Volumes screen displays the volumes that have been admitted.
The screen is divided into a list pane and a detail pane. The summary screen displays a side-by-side mapping between the source and destination volumes. The source system must be connected to display source volume information. The list pane displays the following information: Column Description Source Name The name of the source volume Source State The state of the source volume. Source Provisioning The type of provisioning of the source volume (for example, Thin or Full).
Group Field Description Health New Alerts The number of new virtual volume alerts. State The current state of the virtual volume. State Description Description of the virtual volume's state. Device Type Select the device type, Fast Class (FC), Near Line (NL), or Solid State Device (SSD). The capacity and capacity usage of the selected device type is displayed in graphical form. Logical The logical capacity. Raw The raw capacity.
Active VLUNs Screen The Active VLUNs screen provides the following information for both the source and destination systems. Column Description LUN The exported LUN value. Virtual Volume The exported volume. Host The name of the host to which the VLUN is exported. Port The port to which the path is connected. Host WWN/iSCSI Name The host's WWN or iSCSI name. Exported Size The size of the VLUN in GiB.
Summary Tab The Summary screen provides the following information. Clicking on any highlighted text takes you to the corresponding screen that provides more detailed information. Group Field Description General Name The virtual volume's name. Model The model number of the storage system. Serial Number The serial number of the storage system. OS Version The operating system version in use by the system. SNMP Configuration Indicates whether the system is configured with SNMP.
Group Field Description Host Hosts The number hosts on the system. Host Sets The number of host sets on the system. Operating Systems Lists current operating systems in use. Paths The total number of paths on the system and the number of unassigned paths. CPGs The number of CPGs on the system. Virtual Volumes The number of virtual volumes on the system. Base Volumes The number of base volumes on the system. Thinly Provisioned The number of thinly provisioned volumes on the system.
Alerts Tab The Alerts screen is divided into a list pane and a detail pane. For details about the information displayed in both panes, see “Alerts Tab” (page 30). Ports Screen The Ports screen contains a Peer Capable Ports tab and a Host Ports tab when viewing both source and destination systems. When viewing the destination system, the Peer Ports tab is also included. All three tabs are divided into a list pane and a detail pane and provide similar information.
Column Description Mode Port firmware mode setting: Initiator, Target, Peer, or Suspended. Ports in Initiator mode are connected to drive cages and ports in Target mode export to hosts. Suspended mode is for target ports that have not yet been initialized by the system (this is rare). Peer mode is for Ethernet ports. Partner The partner port, in Node:Slot:Port format. (Displayed only on destination systems.) Partner WWN The WWN of the partner port. (Displayed only on destination systems.
Group Field Description Gateway The address of a local IP router on the same network as the system, used to forward traffic to destinations beyond the local network. Subnet Mask The netmask address for the iSCSI or RCIP interface. MTU The greatest amount of data or "packet" size that can be transferred at one time over a particular network connection without overburdening the connection. The default MTU setting for an iSCSI port is 1500.
Systems” (page 46). For information about Peer Capable, Peer, and Host ports on an available system, see “Ports Screen” (page 49). 52 Column Description System The name of an available system. Peer Capable Ports The number of available peer capable ports on the system. Peer Ports The number of peer ports on the system. Host Ports The number of host ports on the system. Hosts The number of hosts on the system. Host Sets The number of host sets on the system.
4 Post-Migration Tasks System Post-Migration Tasks The Post Migration Cleanup command enables you to remove the migration host after the data migration process is complete.
5 Troubleshooting HP 3PAR-to-3PAR Data Migration If issues arise, you can access the event log through the HP 3PAR Management Console Event Manager. Additionally, the Management Console has a log file directory on the client system. This directory is located at C:\Users\\InFormMC\log. Very often, errors in data migration are caused by zoning issues. You can check the zoning status in the Management Console by viewing the Summary tab, as shown in the following figure.
6 Support and Other Resources Contacting HP For worldwide technical support information, see the HP support website: http://www.hp.
For information about: See: Migrating data from one HP 3PAR storage system to another HP 3PAR-to-3PAR Storage Peer Motion Guide 56 Configuring the Secure Service Custodian server in order to monitor and control HP 3PAR storage systems HP 3PAR Secure Service Custodian Configuration Utility Reference Using the CLI to configure and manage HP 3PAR Remote Copy HP 3PAR Remote Copy Software User’s Guide Updating HP 3PAR operating systems HP 3PAR Upgrade Pre-Planning Guide Identifying storage system compo
For information about: See: Planning for HP 3PAR storage system setup Hardware specifications, installation considerations, power requirements, networking options, and cabling information for HP 3PAR storage systems HP 3PAR 7200, 7400, and 7450 storage systems HP 3PAR StoreServ 7000 Storage Site Planning Manual HP 3PAR StoreServ 7450 Storage Site Planning Manual HP 3PAR 10000 storage systems HP 3PAR StoreServ 10000 Storage Physical Planning Manual HP 3PAR StoreServ 10000 Storage Third-Party Rack Physic
Typographic conventions Table 1 Document conventions Convention Element Bold text • Keys that you press • Text you typed into a GUI element, such as a text box • GUI elements that you click or select, such as menu items, buttons, and so on Monospace text • File and directory names • System output • Code • Commands, their arguments, and argument values • Code variables • Command variables Bold monospace text • Commands you enter into a command line interface • System
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A Migrating Secondary Asynchronous Periodic Remote Copy Volume Groups Peer Motion allows the seamless migration of data from a legacy system to a modern array. This appendix describes the procedures for migrating secondary-storage Remote Copy volumes to a new system by using Peer Motion. When configuring peer motion, it may be necessary to make modifications to the FC switch, as the WWNs will change when moving from peer nodes to host modes.
6. On the source system, re-admit the primary virtual volume into the original periodic group and restart the group. You do not need to wait for the import virtual volume operation to complete; you are admitting the original periodic group with the original primary and secondary virtual volumes. Issue the following commands: # admitrcopyvv : # startrcopygroup : 7.
B Additional Steps to Migrate HP-UX Hosts Rescanning for New LUN Paths Before continuing with migration, it is recommended that you rescan for new LUN paths and make a note of the new paths to the volumes: # ioscan -fnC disk HP-UX 11i V3 HP-UX 11i v3 standalone and Serviceguard clustered hosts can be migrated by using the online migration procedure. No additional configuration is required on the hosts. HP-UX 11i V2 HP-UX 11iv2 standalone hosts can be migrated by using the online migration procedure.
7. On node1, make a note of the new pv_paths to the PVs already in the volume group (from the output of the LUN rescan; see “Rescanning for New LUN Paths” (page 62)). Add all the new paths to the volume group, using the following command: # vgextend vg_shared pv_path 8. Export the changes to other cluster nodes: a. From node1, export the mapfile for vg_shared: # vgexport -s -p -m /tmp/vg_shared.map vg_shared b. c. Copy this mapfile, /tmp/vg_shared, to all the other nodes of the cluster.
3. For each node in the cluster configuration file, modify the values of FIRST_CLUSTER_LOCK_PV and SECOND_CLUSTER_LOCK_PV. 4. To check the configuration, run the cmcheckconf command. 5. To apply the configuration, run the cmapplyconf command. For more information on updating cluster lock disk configuration, see Managing Serviceguard Seventeenth Edition. To obtain a copy of this documentation, see the HP BSC website: http://h20000.www2.hp.com/bizsupport/TechSupport/Home.
Index C constraints pre-migration, 10 conventions text symbols, 58 Copy Storage Settings and Configurations wizard, 16 D migrating, 62 symbols in text, 58 T text symbols, 58 V volumes importing, 19, 21, 22 documentation providing feedback on, 59 H HP 3PAR Peer Motion Manager, 11 HP-UX standalone hosts migrating, 62 I Import Volumes wizard, 21 L LUN paths scanning for, 62 M Migrate Data wizard, 18 migration minimally disruptive, 7 offline, 6 online, 6 migration types, 5 P Peer Motion, 5 peer motion
