Storage Pools are great (they use 4+4 sets when using RAID10, so make sure to build pools of 8 drive increments) but could have more variable performance than a traditional RAID Group and LUN/MetaLUN. If you are dedicating disks to an application and need optimum performance, MetaLUNs are the way to go.  If you want to take advantage of Thin Provisioning, LUN Compression, FASTVP Tiering, or just want a big pool of disks for multiple applications to share, then Pools can be quite useful.  Richard J Anderson
I need to setup a 20 drive RAID 10 set for a SQL Database.  I discovered the 16 drive limit on my Clariion, but noticed storage pools can exceed this limit.  I'm having trouble finding details on if making a storage pool is going to have any negatives vs a RAID Group.  just looking for some guidance.  MetaLUN a possibility also?  Thanks,   Adam
Storage Pool vs Raid Group (16 Drive Limit)