HP EVA P6550 HP P6300/P6500 EVA User Guide (5697-2486, September 2013) - Page 164

Limitations, Mac OS configuration, Failure scenarios, HP-UX

Page 164 highlights

Limitations • HP P6000 Continuous Access is not supported with single path configurations. • Single HBA path at the host server is not part of a cluster, unless in a VMware High Availability Cluster. • Booting from the SAN is supported on single path HBA servers. Figure 84 VMware configuration 1. Network interconnection 2. Single HBA server (Host 1) 3. Dual HBA server (Host 2) 4. Management server 5. SAN switch 1 6. SAN switch 2 7. Controller A 8. Controller B Mac OS configuration For information about Mac OS connectivity, see Mac OS X Fibre Channel connectivity to the HP StorageWorks Enterprise Virtual Array Storage System Configuration Guide (to download, see "Related documentation" (page 197)). Failure scenarios HP-UX Fault stimulus Server failure (host power-cycled) Switch failure (SAN switch disabled) Controller failure Controller restart Failure effect Extremely critical event on UNIX. Can cause loss of system disk. Short term: Data transfer stops. Possible I/O errors. Long term: Job hangs, cannot umount disk, fsck failed, disk corrupted, need mkfs disk. Short term: Data transfer stops. Possible I/O errors. Long term: Job hangs, cannot umount disk, fsck failed, disk corrupted, need mkfs disk. Short term: Data transfer stops. Possible I/O errors. Long term: Job hangs, cannot umount disk, fsck failed, disk corrupted, need mkfs disk. 164 Single path implementation

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Limitations
HP P6000 Continuous Access is not supported with single path configurations.
Single HBA path at the host server is not part of a cluster, unless in a VMware High Availability
Cluster.
Booting from the SAN is supported on single path HBA servers.
Figure 84 VMware configuration
5. SAN switch 1
1. Network interconnection
6. SAN switch 2
2. Single HBA server (Host 1)
7. Controller A
3. Dual HBA server (Host 2)
8. Controller B
4. Management server
Mac OS configuration
For information about Mac OS connectivity, see
Mac OS X Fibre Channel connectivity to the HP
StorageWorks Enterprise Virtual Array Storage System Configuration Guide
(to download, see
“Related documentation” (page 197)
).
Failure scenarios
HP-UX
Failure effect
Fault stimulus
Extremely critical event on UNIX. Can cause loss of system disk.
Server failure (host power-cycled)
Short term: Data transfer stops. Possible I/O errors.
Long term: Job hangs, cannot umount disk, fsck failed, disk corrupted,
need mkfs disk.
Switch failure (SAN switch disabled)
Short term: Data transfer stops. Possible I/O errors.
Long term: Job hangs, cannot umount disk, fsck failed, disk corrupted,
need mkfs disk.
Controller failure
Short term: Data transfer stops. Possible I/O errors.
Long term: Job hangs, cannot umount disk, fsck failed, disk corrupted,
need mkfs disk.
Controller restart
164
Single path implementation