Risks; Limitations; Failure Scenarios; Hp-Ux - HP 6400/8400 User Manual

Risks

Single path failure may result in data loss or disk corruption.
NOTE: For additional risks, see

Limitations

HP P6000 Continuous Access is not supported with single path configurations.
Single path HBA server is not part of a cluster.
Booting from the SAN is supported on single path HBA servers.
Figure 40 VMware configuration
1 Network interconnection
2 Single HBA server
3 Dual HBA server
4 Management server

Failure scenarios

HP-UX

Table 29 HP-UX failure scenarios
Fault stimulus
Server failure (host power-cycled)
Switch failure (SAN switch disabled)
"VMware failure scenarios" (page
5 SAN switch 1
6 SAN switch 2
7 Controller A
8 Controller B
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.
130).
Failure scenarios 127