you define hot spares manually on CX4/VNX1 arrays.
I have a CX4-240 that is in the process of being moved to a new role.  During this  process all hosts have been evacuated, All LUNs and RAID groups are being destroyed. The FLARE will be upgraded from 29 to the most recent version.  The new role for this storage device will be to provide storage for VMware hosts. The workload being generated will be highly variable. The virtual machines in this environment will be application, database and anything else that comes along.  I researching what the best disk configuration would be for this scenario.  The CX4 is fully populated with the following 15k disks:   Any suggestions are appreciated.
CX4-240: Storage Pools or MetaLUNs