To increase the storage on your SAN, you can:
Add storage pools to existing volumes
Add volumes to the SAN
Adding a storage pool to a volume increases available storage and also requires Server to stop the volume and unmount it. Adding storage pools is a quick way to expand a volume and doesn’t require defragmenting the volume to recover performance.
You can add free space to a SAN volume by adding a storage pool to the volume.
Note: A volume can’t contain more than 512 storage pools, or 512 LUNs.
In the Xsan pane of the Server app, select the volume that you want to expand.
Click the Action pop-up menu , then choose Edit Volume.
Click Add , then give the storage pool a name and type.
To choose a type besides User Data Only, see Customize storage pool type.
Select the LUNs for the storage pool from the available list, then click OK.
Server remounts the expanded volume.
In the Xsan pane of the Server app, click Add and follow the instructions in Create a volume.
To see which physical drive modules belong to a LUN, you can turn on the drive activity lights on the RAID system that hosts the LUN.
In the Xsan pane of the Server app, select the volume that has the storage pool you want to edit.
Click the Action pop-up menu , then choose Edit Volume.
Select the storage pool, then click Edit .
Select the desired LUN (Logical Drive).
Click the flash button, then click Stop when finished.
Click OK to close the sheet.