Two or Multiple Disk Drive Failure
Action RequiredDescription/NotesSymptom
RAID
Level
If the Vdisk go QTOF, the Vdisk gets
de-quarantined automatically after
RAID 1 supports a maximum of two
disk drives.
Two disk drive failures in
RAID 1 make it QTOF
RAID 1
the drives are recognized. If the
NAFailure of two or more disk
drives in a RAID 5 Vdisk or
RAID 5
Vdisk does not get de-quarantined
automatically, run a manual
disk group makes the Vdisk
or disk group QTOF.
de-quarantine to bring the Vdisk to
OFFL state, see “Using the Trust
Command” (page 26).
NAFailure of both the disk
drives in the same
RAID 10
sub-Vdisk or subgroup
makes the Vdisk or disk
group QTOF.
If multiple spares are available for
the Vdisk or disk group, two disk
drive reconstruction begins.
Failure of two disk drives in
a RAID 6 Vdisk or disk
group makes the Vdisk or
disk group CRIT.
RAID 6
NAFailure of multiple disk
drives (greater than two) in
a RAID 6 Vdisk or disk
group makes the Vdisk or
disk group QTOF.
In a RAID sub-Vdisk or subgroup, if
one drive fails, the sub-Vdisk or
Failure of two or more
drives, all in different
sub-Vdisks or subgroups.
RAID 10,
RAID 50
subgroup status, and therefore the
Vdisk or disk group status, is CRIT.
If two or more sub-Vdisks or
subgroups have only one drive
failed, the status of the Vdisk or disk
group is still CRIT. Available spares
will be used for reconstruction.
Vdisk or Disk Group Alerts
Action RequiredSymptom
Vdisk or disk group is critical
• For RAID types other than RAID 6, see “Vdisk or disk group Member
Unavailable” (page 18) and “Two or Multiple Disk Drive Failure” (page
19)
• For RAID 6, see “Two or Multiple Disk Drive Failure” (page 19)
See “Vdisk or Disk Group Quarantined” (page 16).Vdisk or disk group is quarantined
See “Using the Trust Command” (page 26).Vdisk or disk group is offline
See “Disk Drive Failure during Reconstruct” (page 17).Vdisk or disk group reconstruction
failed
Vdisk or disk group Expansion Frequently Asked Questions (FAQs)
AnswerQuestion
Yes, expansion resumes once the Vdisk or disk group is
automatically de-quarantined.
During a Vdisk or disk group expansion, multiple disk
drives go missing or are failed while the Vdisk or disk
Disk Drives 19
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