Hi ,

I have a project to allocate 5 TB space for a brand new CX300 [DPE2] with 3 more DAE's attached.

We are the disk enclosures associated.

DPE2 - Bus0 Enclosure0 Disk0 to Bus0 Enclosure0 Disk11 (all are 66.64 GB disks).

         -  Bus0 Enclosure0 Disk13, Bus0 Enclosure0 Disk14  (are 268.4 GB disks)

Bus0 Enclosure1 - 12 disks each disk size 66.64 GB

Bus0 Enclosure2 - 14 disks each disk size 66.64 GB

Bus0 Enclosure3 - 5 disks are 268.4 GB, another 5 disks are 133.68 GB disks.

Could you please let me know which raid group can provide more storage space with reliable as it holds hotspares from these disk enclosures as well. I heard first 4 disks are used by clariion to maintain private data (FLARE,etc..).   Please share your architectural knowledge on this discussion forum what could be the Lun size, raid group size standards.

Thank you !!