Chapter 15. IBM System Storage SAN Volume Controller attachment 541
For the DS8000, all LUNs in the same storage pool tier must have these characteristics:
Use disk drive modules (DDMs) of the same capacity and speed.
Arrays must be the same RAID type.
Use LUNs that are the same size.
For the extent size, to maintain maximum flexibility, an extent size of 1 GiB (1024 MiB) is
suggested.
For additional information, see the SAN Volume Controller Best Practices and Performance
Guidelines, SG24-7521.
15.3 DS8000 performance considerations with SAN Volume
Controller
We suggest the DS8000 configuration to optimize the performance of your virtualized
environment.
15.3.1 DS8000 array
The DS8000 storage system provides protection against the failure of ...