NetApp 7-Mode Aggregate Mirror Configuration

Aggregates

Disks are grouped together in aggregates, these aggregates provide storage to the volume or volumes that they contain. Each aggregate has it own RAID configuration, plex structure and set of assigned disks or array LUNs. You can create traditional volumes or NetApp's FlexVol volumes. There are two types of aggregate

• 32bit - Maximum 16TB
• 64bit - Maximum 100TB

A aggregate has only one plex (pool 0), if you use SyncMirror (licensed product) you can mirror the aggregate in which case it will have two plexes (pool 0 and pool 1). Disks can be assigned to different pools which will be used for hot spares or extending aggregates for those pools. The plexes are updated simultaneously when mirroring aggregates and need to be resynchronized if you have problems with one of the plexes.

You can create mirror aggregate using the following command.

aggr create aggrname -m -t raid4 -d <disk list from pool0> -d <disk list from pool1>

If the aggregate is already exists then, aggr mirror command to create a mirror.

Check the aggr status.

Run sysconfig command, you can see the two plexes (Plex0 and Plex1) and internally mirrored.

You can check the aggr status to list the mirror status of that aggregate.