HP 3PAR VMware ESX Implementation Guide
Table Of Contents
- HP 3PAR VMware ESX Implementation Guide
- Contents
- 1 Introduction
- 2 Configuring the HP 3PAR StoreServ Storage for Fibre Channel
- 3 Configuring the HP 3PAR StoreServ Storage for iSCSI
- 4 Configuring the HP 3PAR StoreServ Storage for FCoE
- 5 Configuring the Host for a Fibre Channel Connection
- Installing the HBA and Drivers
- Installing Virtual Machine Guest Operating System
- Multipath Failover Considerations and I/O Load Balancing
- Performance Considerations for Multiple Host Configurations
- ESX/ESXi 4.1, ESXi 5.x Additional Feature Considerations
- Storage I/O Control
- vStorage APIs for Array Integration (VAAI)
- HP 3PAR VAAI Plugin 1.1.1 for ESX 4.1
- HP 3PAR VAAI Plugin 2.2.0 for ESXi 5.x
- UNMAP (Space Reclaim) Storage Hardware Support for ESXi 5.x
- Out-of-Space Condition for ESX 4.1 and ESXi 5.x
- Additional New Primitives Support on ESXi 5.x
- VAAI and New Feature Support Table
- VAAI Plugin Verification
- 6 Configuring the Host as an FCoE Initiator Connecting to a FC target or an FCoE Target
- 7 Configuring the Host for an iSCSI Connection
- Setting Up the Switch, iSCSI Initiator, and iSCSI target ports
- Installing iSCSI on VMware ESX
- Installing Virtual Machine Guest Operating System
- Creating a VMkernel Port
- Configuring a Service Console Connection for the iSCSI Storage
- Configuring the VMware SW iSCSI Initiator
- iSCSI Failover Considerations and Multipath Load Balancing
- Performance Considerations for Multiple Host Configurations
- ESX/ESXi Additional Feature Considerations
- 8 Allocating Storage for Access by the ESX Host
- 9 Booting the VMware ESX Host from the HP 3PAR StoreServ Storage
- 10 Support and Other Resources
- 11 Documentation feedback
- A Appendix
key hard error and additional sense "SPACE ALLOCATION FAILED WRITE PROTECT". As a result,
ESX pauses the VM and displays an 'Out of Space' message to the user in the Summary tab of
the VM on vSphere, with the options of Retry or Cancel. In the pause-VM condition, read requests
and rewrites to the allocated LUN blocks are allowed, but writing to a new space is not allowed.
Ping, telnet and ssh requests to the VM are not honored. The storage administrator needs to add
additional disk space or use storage vMotion to migrate other unaffected VMs from the LUN. After
additional disk space is added, use the Retry option on the warning message to bring the VM
back to the read-write state. If you select the Cancel option, the VM is rebooted.
In the following example, an HP 3PAR StoreServ Storage TPVV volume was created with a warning
limit of 60%, as shown in the showvv -alert command.
When the warning limit is reached, the HP 3PAR StoreServ Storage sends a soft threshold error
asc/q: 0x38/0x7 and ESX continues to write.
InServ debug log:
1 Debug Host error undefined Port 1:5:2 -- SCSI status 0x02 (Check
condition) Host:sqa-dl380g5-14-esx5 (WWN 2101001B32A4BA98) LUN:22 LUN
WWN:50002ac00264011c VV:0 CDB:280000AB082000000800 (Read10) Skey:0x06 (Unit attention)
asc/q:0x38/07 (Thin provisioning soft threshold reached) VVstat:0x00 (TE_PASS
-- Success) after 0.000s (Abort source unknown) toterr:74882, lunerr:2
# showalert
Id: 193
State: New
Message Code: 0x0270001
Time: 2011-07-13 16:12:15 PDT
Severity: Informational
Type: TP VV allocation size warning
Message: Thin provisioned VV nospace1 has reached allocation
warning of 60G (60% of 100G)
When the HP 3PAR StoreServ Storage runs out of disk space, a hard permanent error asc/q:
0x27/0x7 is sent. Use showspace, showvv -r, and showalert to see the warning and space
usage. The ESX responds by stunning the VM.
InServ debug log:
1 Debug Host error undefined Port 1:5:2 -- SCSI status 0x02 (Check
condition) Host:sqa-dl380g5-14-esx5 (WWN 2101001B32A4BA98) LUN:22 LUN
WWN:50002ac00264011c VV:612 CDB:2A00005D6CC800040000 (Write10) Skey:0x07 (Data protect)
asc/q:0x27/07 (Space allocation failed write protect) VVstat:0x41 (VV_ADM_NO_R5
-- No space left on snap data volume) after 0.302s (Abort source unknown)
toterr:74886, lunerr:3
The following figure shows the VM warning displayed on the vSphere with the Retry and Cancel
options.
54 Configuring the Host for a Fibre Channel Connection