Useful command line reference for the EMC File part of the VNX and NS arrays.
VMware KB: ESXi/ESX hosts with visibility to RDM LUNs being used by MSCS nodes with RDMs may take a long time to boot or during LUN rescan
This was a great find – fixed the 45 minute boot time due to the large number of RDMs in use:
Need to know the difference between storage pool and RAID group?
A great reply to a posted question – all show in a easy to read table.
A Excellent and hand IOPS calculator over on the site wmarow.com.
It has a number of pre-defined drive type, but you can add your own drives specifications.