Ah, didn't pick up on the fact it was per 20, I assumed it was anything above 20.  I think based no that I'll create 2 CSVs, with 12 drives each (1 of each being spare).  That'll do nicely.  Thank you so much Sam.
Hi there,  I had a couple queries I was hoping to get some help with.  We're implementing a new SAN and Server setup and as part of this are procuring an SCV2020 with 24 x 1.2TB 15K drives.  I've been reading through the various articles to plan our implementation but I can't really find anything with regards to the best practice around provisioning this storage pool.  We will be adding a 3 node failover cluster with Windows to access this SAN, there isn't any need to give machines a higher priority than others so I'm just wondering if I should create one Cluster Shared Volume across the entire storage array.   Would you recommend this or do you think I should go down the route of having numerous CSVs, indeed, is there even any benefit to this?  Finally; in reading through the Storage Management user manual I saw something saying 2000 series cannot access more than 20 disks at a time (and anything over that would be spare).  As we've been spec'd with 24 disks am I to assume 4 would be hot spares (overkill) or does the 2020 allow me to access more of them (ideally I just want 1 hot spare).  Any advice would be greatly appreciated.
Advice on Disk Configuration for SCV2020