Editing aggregate settings

You can use the Edit Aggregate dialog box to change the aggregate name, RAID type, RAID group size, and to add capacity disks and cache disks to the aggregate. You can also convert the aggregate to a Flash Pool. However, you cannot modify the properties of a SnapLock Compliance aggregate.

Before you begin

•	You must have sufficient spare disks to add additional disks to an aggregate.

About this task

When you add disks to an aggregate on storage systems running Data ONTAP 7.3.7, new disks are added only to the most recently created RAID group. When the existing RAID groups become full after the disks are added, new RAID groups are created and disks are added to the new RAID groups. The previously created RAID groups remain at their current size unless you add the disks to them.

You cannot edit a Flash Pool that has mixed RAID types for storage systems running Data ONTAP 8.2.

Steps

1.	From the Home tab, double-click the appropriate storage system.

2.	In the navigation pane, click Storage > Aggregates.

3.	Select the aggregate that you want to edit and click Edit.

4.	In the Edit Aggregate dialog box, perform the appropriate steps:

If you want to...

Do this...

Increase the storage

Specify the number of disks to add and click Save and Close.

The spare disks from the default disk group are added to all the RAID groups of the aggregate.

Specify which disks to use when increasing storage

a.	Click Advanced, and select a disk group from the Advanced Disk Selection window.

The minimum hot spare rule is applied to the disk group having the largest disk size. The disk count displayed in the Advanced Disk Selection window does not include the hot spare.

b.	Specify the RAID group to which you want to add the disks.

You can add disks to all RAID groups or a specific RAID group, or create a new RAID group and add the disks.

•	For HDDs, you cannot add disks to all RAID groups if all the parity disks of the aggregate are not equal in size (within a ten percent tolerance range). You should create a new RAID group to add the disks, or specify an existing RAID group.

•	If you select a disk group with a disk size that is smaller than the selected RAID group parity disk's size, a warning message indicating a suboptimal configuration is displayed.

•	If you select a disk group with a disk size that is larger than the selected RAID group parity disk's size, a warning message indicating a downsized configuration is displayed.

c.	Specify the number of disks to add.

d.	Click Save and Close.

5.	In the Edit Aggregate dialog box, perform the following steps if you want to modify the RAID type or RAID group size:

a.	Click Change.

b.	In the RAID Details window, specify the required details.

c.	Click Save and Close.

Result

The selected aggregate is updated with the new information. The updated information is also displayed in the Details tab of the Aggregates window.

Related reference

Aggregates window