Table 61 Linux failure scenarios (continued)
Fault stimulus
Server path failure
Storage path failure
IBM AIX
Table 62 IBM AIX failure scenarios
Fault stimulus
Server failure (host power-cycled)
Switch failure (SAN switch disabled)
Controller failure
Controller restart
Server path failure
Storage path failure
VMware
Table 63 VMware failure scenarios
Fault stimulus
Server failure (host power-cycled)
Switch failure (SAN switch disabled)
Controller failure
Controller restart
166 Single Path Implementation
Failure effect
Short: I/O suspended, possible data loss.
Long: I/O halts with I/O errors, data loss. HBA driver must be reloaded
before failed drives can be recovered, fsck should be run on any failed
drives before remounting.
Short: I/O suspended, possible data loss.
Long: I/O halts with I/O errors, data loss. HBA driver must be reloaded
before failed drives can be recovered, fsck should be run on any failed
drives before remounting.
Failure effect
Check disk when rebooting. Data loss, data that finished copying survived
Short term: Data transfer stops. Possible I/O errors.
Long term: Repeated error messages in errpt output. System reboot causes
loss of data on disk. Must crfs disk.
Short term: Data transfer stops. Possible I/O errors.
Long term: Repeated error messages in errpt output. System reboot causes
loss of data on disk. Must crfs disk.
Short term: Data transfer stops. Possible I/O errors.
Long term: Repeated error messages in errpt output. System reboot causes
loss of data on disk. Must crfs disk.
Short term: Data transfer stops. Possible I/O errors.
Long term: Repeated error messages in errpt output. System reboot causes
loss of data on disk. Must crfs disk.
Short term: Data transfer stops. Possible I/O errors.
Long term: Repeated error messages in errpt output. System reboot causes
loss of data on disk. Must crfs disk.
Failure effect
OS reboots, automatically checks disks. HSV disks must be manually
checked unless auto mounted by the system.
Short: I/O suspended, possible data loss.
Long: I/O halts with I/O errors, data loss. HBA driver must be reloaded
before failed drives can be recovered, fsck should be run on any failed
drives before remounting.
Short term: I/O suspended, possible data loss.
Long term: I/O halts with I/O errors, data loss. Cannot reload driver,
need to reboot system, fsck should be run on any failed disks before
remounting.
Short term: I/O suspended, possible data loss.
Long term: I/O halts with I/O errors, data loss. Cannot reload driver,
need to reboot system, fsck should be run on any failed disks before
remounting.