Adding new storage to a Celerra

Create LUNs on the CLARiiON following the Guidelines required for NAS like for FC disks create 4+1 or 8+1 RAID 5 RAID group - create two LUNs on each RAID Group and balance them across SPs. For ATA drives, the configuration will be different and either 1 or two LUNs on each RAID Group and LUNs on same Raid Group (using ATA) drives will be on same SP - balance the load on SP if using more than one ATA Raid Groups. Please refer to the Release notes or support matrix for getting all the supported RAID Group / LUN configuration.

Then add the LUNs to the Storage group for NAS - please remember to set the Host ID (HLU) while adding the LUNs to the storage group - this will be the right most field on the "Select LUN" property page. The Host ID must be > 16 - you may chose the next available host ID which is greater than 16.

On the NAS end - Using Celerra Manager, make the new user LUNs available to the Celerra system.

On the Celerra Manger Go to Storage Systems page, click
Rescan.
Alternatively on the NAS end, you may do the same by running the server_devconfig command. Run these commands in sequence as "nasadmin" on all Data Movers, including Standby Data mover -

server_devconfig server_x -list -scsi -disk
server_devconfig server_x -probe -scsi -disk
server_devconfig server_x -create -scsi -disk
server_devconfig server_x -list -scsi -disk

The second List command will now identify the new disks which relates to the new LUNs on the backend CLARiiON.

Also you can run nas_disk -list command before and after running the server_devconfig command which will show you the list of disk device on NAS before and after the new LUNs were added.

Ensure you run the server_devconfig commands for standby data mover as well.

The added space will be available to the respective storage pool - i.e. for 4+1 RAID 5 LUNs - the space will be added to clar_r5_performance storage pool and so on.


Hope this helps.
Thanks,
Sandip