|
||
Volume TroubleshootingThe volume state indicates the current condition of a volume. The volume state appears in the state column of the grid and in the Volume Properties window. When a volume is unhealthy, an alert icon appears on the volume and the volume is listed in the Alert Monitor window. Unhealthy states include:
Volume State: StartedThe volume is accessible and has no known problems. This is the normal volume state. No user action is required. Volume State: StoppedThe volume is disabled and is not available for use. Volume State: UninitializedThe volume is enabled, but is not initialized. If this state appears during volume creation, no user action is necessary. Volume State: DegradedThe RAID-5 volume is in a degraded mode. This usually occurs when one or more subdisks are unavailable and read requests require data reconstruction. An underlying disk may have failed completely or there may be I/O errors on part of a disk. Alternatively, an underlying disk may be disconnected. ![]() To return the RAID-5 volume to a healthy state, recover the volume. ![]() Volume State: UnusableThe RAID-5 volume is unusable. This usually occurs when there is a double disk failure (that is, when two subdisks in the same stripe or the parity and one subdisk in a stripe are damaged or inaccessible). The underlying disks may have failed or become inaccessible. ![]() Run the following command to reattach the disks to their disk group: # /etc/vx/bin/vxreattach [device_name] To return the RAID-5 volume to a healthy state, recover the volume. ![]() # vxvol -f start volume_name Restore the volume from backup. To prevent this problem in the future, enable logging for RAID-5 volumes. |
||
![]() ![]() |