Add Xsan storage in macOS Server
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.
Add storage pools to a volume
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 Server app sidebar, select Xsan from the list of advanced services.
Select the volume that you want to expand.
Click and choose Edit Volume.
Click , then give the storage pool a name and type.
To choose a type besides User Data Only, see Customize the Xsan storage pool type in macOS Server.
Select the LUNs for the storage pool from the available list, then click OK.
Server remounts the expanded volume.
Add volumes to a SAN
In the Server app sidebar, select Xsan from the list of advanced services, then click and follow the instructions in Create an Xsan volume in macOS Server.
Find the drive modules that belong to a LUN
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 Server app sidebar, select Xsan from the list of advanced services.
Select the volume that has the storage pool you want to edit.
Click and choose Edit Volume.
Select the storage pool, then click .
Select the desired LUN (Logical Drive).
Click the flash button, then click Stop when finished.
Click OK to close the sheet.