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Cluster : Storage > Aggregates : Managing aggregates : Adding disks to an aggregate
Adding disks to an aggregate
You can add hot spare disks to an aggregate to replace disks or to increase its size so that it can provide more storage space to its contained volumes. You can use the Add Disks to Aggregate dialog box to add hot spare disks to an existing aggregate.
Before you begin 
An appropriate number of hot spare disks of the matching disk type, RPM, and checksum type must be available.
About this task 
You cannot add disks to a mirrored aggregate if one of the plexes is offline.
Steps 
1.
From the Home tab, double-click the appropriate storage system.
2.
Ensure that the left navigation pane displays either the cluster hierarchy or the storage controllers hierarchy.
3.
In the navigation pane, click Storage > Aggregates.
4.
Select an aggregate to which you want to add disks and click Add Disks.
5.
Click Select Disks and specify the number of matching spare disks that you want to add to the aggregate and click OK.
6.
In the Advanced area, specify the RAID group to which you want to add the disks.
You can also modify the RAID group size, if required.
7.
Click Add.
8.
Verify that the disks are added to the aggregate.
Related reference 
Aggregates window

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