Limitations, Mac os configuration, Failure scenarios – HP EVA P6000 Storage User Manual

Page 164: Hp-ux, Mac os configuration failure scenarios

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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

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