Viewing RAID status

About RAID status

You can use the volume status command to check the current RAID status and configuration for your filer volumes. To view RAID status for your filer volumes, complete the following step:

Step	Action
1	To view the RAID status of your volumes, enter the following command: *vol status [vol_name] -r* vol_name is the name of the volume whose RAID status you want to view. Note If you omit a volume name, Data ONTAP displays the RAID status of all the volumes on the filer.

Possible RAID statuses displayed

The volume status -r command displays the following possible statuses that pertain to RAID:

Normal--The volume is unmirrored, and all of its RAID groups are functional.
Mirrored--The volume is mirrored, and all of its RAID groups are functional.
Degraded--The volume contains at least one degraded RAID group that is not being reconstructed after single disk failure.
Double degraded--The volume contains at least one RAID group with double disk failure that is not being reconstructed (this state is possible if RAID DP protection is enabled for the affected volume).
Mirror degraded--The volume is a mirrored volume, and one of its plexes is offline or resynchronizing.
Reconstruction xx% complete--At least one RAID group in the volume is being reconstructed after experiencing a single disk failure.
Double reconstruction xx% complete--At least one RAID group in the volume is being reconstructed after experiencing a double disk failure (this state is possible if RAID DP protection is enabled for the affected volume).
Partial--At least one disk was found for the volume, but two or more disks are missing.
Resyncing--The volume contains two plexes; one plex is resynchronizing with the volume.

Sample volume status output

The following output for vol status vol_name -r command indicates that volume vol1 is reconstructing data after a data disk failure was detected in the RAID group rg0.

>vol status vol1 -r

Volume vol1 (online, raid_dp, reconstruct, degraded)

    (zoned checksums)

  Plex /vol1/plex0 (online, normal, active)

    RAID group /vol1/plex0/rg0 (reconstruction 23% completed,

      degraded)

RAID Disk Device HA SHELF BAY CHAN Used (MB/blks) Phys (MB/blks)

-------- ------ ----------- ---- ------------ -------------

dparity   v0.2  v0  0    2  FC:A 36/74752     42/87168

parity    v0.4  v0  0    4  FC:A 36/74752     42/87168

(reconstruction 23% completed)

data      v0.3  v0  0    3  FC:A 36/74752     42/87168

data      v0.5  v0  0    5  FC:A 36/74752     42/87168

data      v0.6  v0  0    6  FC:A 36/74752     42/87168

data      FAILED      N/A        36/74752

data      v0.9  v0  0    9  FC:A 36/74752     42/87168