Aggregate states and status

Aggregates can be in one of three states—online, offline, or restricted. In addition, they can show one or more status values, depending on how they are configured and the health of their disks. You can determine an aggregate's current state and status by using the aggr status command.

The following table displays the possible states for aggregates.

State	Description
Online	Read and write access to volumes hosted on this aggregate is allowed.
Restricted	Some operations, such as parity reconstruction, are allowed, but data access is not allowed.
Offline	No access to the aggregate is allowed.

The following table displays the possible status values for aggregates.

Status	Description
`aggr`	This aggregate is capable of containing FlexVol volumes.
`copying`	The aggregate is currently the target aggregate of an active copy operation.
`degraded`	The aggregate contains at least one RAID group with single disk failure that is not being reconstructed..
`double degraded`	The aggregate contains at least one RAID group with double disk failure that is not being reconstructed (RAID-DP aggregates only).
`foreign`	Disks that the aggregate contains were moved to the current storage system from another storage system.
`growing`	Disks are in the process of being added to the aggregate.
`initializing`	The aggregate is in the process of being initialized.
`ironing`	A WAFL consistency check is being performed on the aggregate.
`mirrored`	The aggregate is mirrored.
`mirror degraded`	The aggregate is mirrored and one of its plexes is offline or resynchronizing.
`needs check`	WAFL consistency check needs to be performed on the aggregate.
`normal`	The aggregate is unmirrored and all of its RAID groups are functional.
`out-of-date`	The aggregate is mirrored and needs to be resynchronized.
`partial`	At least one disk was found for the aggregate, but two or more disks are missing.
`raid0`	The aggregate consists of RAID-0 (no parity) RAID groups (V-Series systems only).
`raid4`	The aggregate consists of RAID4 RAID groups.
`raid_dp`	The aggregate consists of RAID-DP RAID groups.
`reconstruct`	At least one RAID group in the aggregate is being reconstructed.
`redirect`	Aggregate reallocation or file reallocation with the -p option has been started on the aggregate. Read performance on volumes in the aggregate may be degraded.
`resyncing`	One of the mirrored aggregate's plexes is being resynchronized.
`snapmirrored`	The aggregate is a SnapMirror replica of another aggregate (traditional volumes only).
`trad`	The aggregate is a traditional volume and cannot contain FlexVol volumes.
`verifying`	A mirror verification operation is currently running on the aggregate.
`wafl inconsistent`	The aggregate has been marked corrupted; contact technical support.

Parent topic: How aggregates work

Related concepts

How unmirrored aggregates work

How mirrored aggregates work

How you can use disks with mixed speeds in the same aggregate

How to control disk selection in a heterogeneous disk pool

Checksum type rules used when you add disks to an aggregate