HP StorageWorks XP Disk Array Configuration Guide for VMware XP24000, XP12000, XP10000 Part number: A5951-96101 First edition: June 2007
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Contents About this guide ................................................................................... 7 Intended audience ...................................................................................................................... 7 Related documentation ................................................................................................................ 7 Document conventions and symbols ...........................................................................................
A Path worksheet ............................................................................... 29 ............................................................................................................................................... 29 B Disk array supported emulations ....................................................... 31 Supported emulations ................................................................................................................ 31 Emulation specifications .........
Figures 1..SNMP configuration ............................................................................................... 13 2..Host mode setting 01 (XP24000 only) ....................................................................... 14 3..Simple point-to-point fabric topology example ............................................................ 16 4..Multi-cluster environment ..........................................................................................
Tables 1..Document conventions ............................................................................................... 8 2..Fabric topology settings ........................................................................................... 16 3..SAN fabric zoning and LUN security settings ............................................................. 17 4..Error conditions ...................................................................................................... 26 5..Worksheet .........
About this guide This guide provides information about: • Requirements and procedures for connecting an XP disk array to a host system • Configuring the disk array for use with the VMware operating system Intended audience This guide is intended for system administrators with knowledge of: • The host hardware • VMware operating system • XP disk arrays Related documentation The following documents provide related information: • • • • • HP HP HP HP HP StorageWorks StorageWorks StorageWorks StorageWorks St
Document conventions and symbols Table 1 Document conventions Convention Element Blue text: Table 1 Cross-reference links and e-mail addresses Blue, underlined text: http://www.hp.
Conventions for storage capacity values HP XP storage systems use the following values to calculate physical storage capacity values (hard disk drives): • 1 KB (kilobyte) = 1,000 bytes • 1 MB (megabyte) = 1,0002 bytes • 1 GB (gigabyte) = 1,0003 bytes • 1 TB (terabyte) = 1,0004 bytes HP XP storage systems use the following values to calculate logical storage capacity values (logical devices): • 1 KB (kilobyte) = 1,024 bytes • 1 MB (megabyte) = 1,0242 bytes • 1 GB (gigabyte) = 1,0243 bytes • 1 TB (terabyte) =
HP websites For additional information, see the following HP websites: • • • • http://www.hp.com http://www.hp.com/go/storage http://www.hp.com/service_locator http://www.hp.com/support/manuals Documentation feedback HP welcomes your feedback. To make comments and suggestions about product documentation, please send a message to storagedocsFeedback@hp.com. All submissions become the property of HP.
1 Installing and configuring VMware for the XP disk array You and your HP service representative each play a role in installation. Your HP service representative is responsible for installing the disk array and formatting the disk devices. You are responsible for configuring the host server for the new devices with assistance from your HP service representative. Features and requirements Ask your HP service representative about the latest supported hardware and software.
• Fibre Channel switches Even though the interface is Fibre Channel, this guide uses the term “SCSI disk” because disk array devices are defined to the host as SCSI disks. Device emulation types The XP family of disk arrays supports these device emulation types: • OPEN-K/3/8/9/E devices: OPEN-x logical units represent disk devices. Except for OPEN-V, these devices are based on fixed sizes. OPEN-V is a user-defined size.
Figure 1 SNMP configuration XP RAID Manager command devices HP StorageWorks XP RAID Manager manages HP StorageWorks XP Business Copy Software or HP StorageWorks XP Continuous Access Software operations from a host server. To use XP RAID Manager, you must designate at least one LDEV as a command device. This can be done with XP Remote Web Console. Refer to the applicable user guide for information about how to designate a command device.
After these tasks are finished, you will use XP Remote Web Console, or XP LUN Manager to complete the remaining tasks listed below. If you do not have these programs, your HP service representative can perform these tasks for you. Setting the host mode and host group mode for the disk array ports After the disk array is installed, you must set the host mode for each disk array port to match the host OS. Set the host mode using LUN Manager in XP Remote Web Console (shown).
Configuring the Fibre Channel ports Configure the disk array Fibre Channel ports by using XP Remote Web Console. Select the settings for each port based on your storage area network topology. Use switch zoning if you connect different types of hosts to the array through the same switch. Fibre Address In fabric environments, the port addresses are assigned automatically.
Figure 3 Simple point-to-point fabric topology example Table 2 Fabric topology settings Fabric parameter Connection parameter Provides ON FC-AL Not supported OFF FC-AL Not supported ON Point-to-Point N-port (SAN fabric port) OFF Point-to-Point Not supported Installing and configuring the host This section explains how to install and configure the host and host bus adapters (HBAs) that connect the host to the disk array.
Figure 4 Multi-cluster environment Within the Storage Area Network (SAN), the clusters may be homogeneous (all the same operating system) or they may be heterogeneous (mixed operating systems). How you configure LUN Security and fabric zoning depends on the operating system mix and the SAN configuration. NOTE: In addition to standard clustering using MSCS (Windows Guest OS), VMware has distinct High Availability features.
Configuring VMware ESX Server VMware ESX Server 2.5x 1. Open the management interface, select the Options tab, and then click Advanced Settings.... 2. In the “Advanced Settings” window, scroll down to Disk.MaskLUN. 3. Verify that the value is large enough to support your configuration (default=8). If the value is less than the number of LUNs you have presented then you will not see all of your LUNs. The maximum value is 256. VMware ESX Server 3.0x 1.
1. Verifying operational status of the disk array channel adapters, LDEVs, and paths. 2. Connecting the Fibre Channel cables between the disk array and the fabric switch or host. 3. Verifying the ready status of the disk array and peripherals. Defining the paths Use XP Remote Web Console to define paths (LUNs) between hosts and volumes in the disk array. This process is also called “LUN mapping.
3. In the right pane locate the DWORD entry “TimeOutValue.” and right click. Select Modify, then set the data value to x03c (hexadecimal) or 60 (decimal). NOTE: If the DWORD “TimeOutValue” doesn't exist, click Edit > New> DWORD value and enter the name “TimeOutValue.” Sharing LUNs To share LUNs between VMs within a single ESX server, set the SCSI controller to virtual mode. To share LUNs across multiple ESX servers or in a virtual to physical configuration, set the SCSI controller to physical mode.
3. Select the Bus Sharing mode (virtual or physical) appropriate for your configuration, and then click OK. NOTE: Sharing VMDK disks is not supported. VMware ESX Server 3.0x 1. In VirtualCenter select the VM you plan to edit, and then click Edit Settings.
2. Select the SCSI controller for use with your shared LUNs. NOTE: If only one SCSI controller is present, add another disk that uses a different SCSI bus than your current configured devices. 3. Select the Bus Sharing mode (virtual or physical) appropriate for your configuration, and then click OK. NOTE: Sharing VMDK disks is not supported. Selecting the SCSI emulation driver Select the HP supported SCSI emulation driver for a guest OS as follows: 1.
2. • For Windows 2000 use the BusLogic SCSI driver. • For Widows 2003 use the LSI Logic SCSI driver. Linux • For the 2.4 kernel use the LSI Logic SCSI driver. • For the 2.6 kernel use the BusLogic SCSI driver.
Installing and configuring VMware for the XP disk array
2 Troubleshooting This section includes resolutions for various error conditions you may encounter. If you are unable to resolve an error condition, ask your HP support representative for assistance. See Calling the HP support center. Error conditions You can view error messages (R-SIMs) in XP Remote Web Console (Status tab).
Table 4 Error conditions Error condition Recommended action The logical devices are not recognized by the host. Verify the following: • The READY indicator lights on the disk array are ON. • Fiber cables are correctly installed and firmly connected. • The target IDs are properly configured. The LUNs for each TID must start at 0 and continue sequentially without skipping any numbers. • The TIDs/WWNs on each bus are unique. Do not install two devices with the same ID on the same bus.
Error condition Recommended action A file system is not mounted after rebooting. Verify the following: • The host was restarted correctly. • The file system attributes are correct. • The auto-mount information in the /etc/checklist (/etc/fstab) file is correct. The disk array performs a self reboot because the disk array was busy or it logged a panic message. Reboot the host. The disk array responds “Not Ready” or the disk array has displayed “Not Ready” and timed out. Contact HP.
Troubleshooting
A Path worksheet Table 5 Worksheet LDEV (CU:LDEV) (CU = control unit) 0:00 0:01 0:02 0:03 0:04 0:05 0:06 0:07 0:08 0:09 0:10 Device Type SCSI Bus Number Path 1 Alternate Paths TID: TID: TID: LUN: LUN: LUN: TID: TID: TID: LUN: LUN: LUN: TID: TID: TID: LUN: LUN: LUN: TID: TID: TID: LUN: LUN: LUN: TID: TID: TID: LUN: LUN: LUN: TID: TID: TID: LUN: LUN: LUN: TID: TID: TID: LUN: LUN: LUN: TID: TID: TID: LUN: LUN: LUN: TID: TID: TID: LUN: LUN: LUN:
Path worksheet
B Disk array supported emulations This appendix provides information about supported emulations and device type specifications. Some parameters may not be relevant to your array. Consult your HP representative for information about supported configurations for your system.
Emulation specifications Table 7 Emulation specifications Emulation(Note 1) Category (Note 2) Blocks (512 bytes ) OPEN-3 SCSI disk 4806720 512 3338 OPEN-8 SCSI disk 14351040 512 OPEN-9 SCSI disk 14423040 OPEN-E SCSI disk OPEN-L OPEN-V Sector Size (bytes) # of Cylinders Heads Sectors per track Capacity MB*(Note 3) 15 96 2347 9966 15 96 7007 512 10016 15 96 7042 28452960 512 19759 15 96 13893 SCSI disk 71192160 512 49439 15 96 34761 SCSI disk max=125827200 512
Note 1: The availability of a disk type depends on the disk array. Note 2: The devices are defined to the host as SCSI disk devices, even though the interface is Fibre Channel. Note 3: The device capacity can sometimes be changed by the BIOS or host adapter board. This may make actual capacity different from that listed in the table.
Example For a CVS LUSE volume with capacity = 37 MB and n = 4: # of cylinders = 37 × 1024/720 × 4 = 52.62 × 4 = 53 × 4 = 212 OPEN-V: The number of cylinders for a CVS LUSE volume =# of cylinders = (capacity (MB) specified by user) × 16/15 × n Example For an OPEN-V CVS LUSE volume with capacity = 49 MB and n = 4: # of cylinders = 49 × 16/15 × 4 = 52.26 × 4 = 53 × 4 = 212 Note 6: The capacity of an OPEN-3/8/9/E CVS volume is specified in MB, not number of cylinders.
Glossary AL Arbitrated loop. AL-PA Arbitrated loop physical address. array group A group of 4 or 8 physical hard disk drives (HDDs) installed in an XP disk array and assigned a common RAID level. RAID1 array groups consist of 4 (2D+2D) or 8 HDDs (4D+4D). RAID5 array groups include a parity disk but also consist of 4 (3D+1P) or 8 HDDs (7D+1P). All RAID6 array groups are made up of 8 HDDs (6D+2P).
OPEN-L). The number of resulting LDEVs depends on the selected emulation mode. The term LDEV is often used synonymously with the term volume. LUN Logical unit number. A LUN results from mapping a SCSI logical unit number, port ID, and LDEV ID to a RAID group. The size of the LUN is determined by the emulation mode of the LDEV and the number of LDEVs associated with the LUN. For example, a LUN associated with two OPEN-3 LDEVs has a size of 4,693 MB.
WWN World Wide Name. A unique identifier assigned to a Fibre Channel device. XP Remote Web Console HP StorageWorks XP Remote Web Console. A browser-based program installed on the SVP that allows you to configure and manage the disk array.
Glossary
Index A AL-PA, 15 arbitrated-loop physical address, 15 audience, 7 C clustering, 16 command device(s) designate at least one LDEV as a, 13 command device(s) RAID Manager, 13 configuration device emulation types, 12 Fibre Channel ports, 15 HBAs, 16 host, 16 Host Mode, setting, 14 port, 15 System Option Mode, 14 conventions document, 8 storage capacity values, 9 D device(s) emulations, 12, 31 logical, not recognized by host, 26 type specifications, 32 disk array(s) self reboot, 27 times out, 27 disk array(s
host configuration, 16 doesn't reboot properly after hard shutdown, 26 hangs up, 27 logical devices not recognized, 26 parity error, 27 Host Mode, setting, 14 host bus adapters, see "HBAs", 11 HP service representative tasks, 13 technical support, 9, 27 R related documentation, 7 requirements, disk array, 11 S installation connecting disk array, 18 HP service representative tasks, 13 overview, 13 SCSI disk, Fibre Channel interface and term "SCSI disk", 12 Secure Manager XP, 17 Secure Manager XP, 17 secu
X XP XP XP XP XP XP Array Manager, 13 Array Manager, 11 Business Copy Software, 13 Command View, 14 Continuous Access Software, 13 family storage capacity, 11 XP LUN Manager, 15, 19 XP RAID Manager command devices, 13 Z zoning, fabric, 16 XP Disk Array Configuration Guide for VMware 41
