If this is for an Epic Electronic Medical Record (EMR) deployment on a VMAX then there are a few areas where the recommend design will deviate from the general EMC best practices. One of those EMC specific recommendations for the Epic Cache database is indeed 4 splits per disk for the TDATs.  There are other specifics for Epic that need to be followed as well to ensure a successful deployment. EMC has a healthcare practice that focuses on EMR and I recommend you reach out to your EMC representative to engage that group.
I am looking for a simple way to come up with Cylinder size/TDAT based on disk requirements below.  I am planning on configuring pool1 with following configuration. a) place in Disk Group 3 (42 * 300GB FC disk)   - TDAT hypers on disks   - Raid 10  I am planning on configuring pool2 with following configuration.  b) place in Disk Group 2 (40 * 200GB EFD disk)   - TDAT hypers on disks   - Raid 5 (3+1) c) place in Disk Group 2 (68 * 300GB FC disk)   - TDAT hypers on disks   - Raid 10 d) place in Disk Group 2 (16 * 2000GB SAS disk)   - TDAT hypers on disks   - Raid 10  I am planning on configuring pool3 with following configuration.  e) place in Disk Group 3 (10 * 600GB FC disk)   - TDAT hypers on disks   - Raid 10  Based on the requirement above, is there a formula or tool I can use to come up with number of splits, cylinder/TDAT sizes?  Any help on this topic is much appreciated as I am trying to figure out best approach on this design.  Thanks,
TDAT Cylinder Creation Question