Best practice says to format SAN storage via the VI client.
This is done so the blocks and the SAN chunks line up correctly.
It also provides more efficient storage management for both the initial provisioning and the ongoing management of the shared storage resources.
How do i check the san and the vmfs format is aligned correctly??
Current situation from our under performing SAN:
block size 4mb
file system 3.31
Also where else should i be checking for performance problems and bottlenecks?