SAN kit purchased, no turning back!
Exciting times...and thanks to all the guys here for patiently helping me out with suggestions.
Having used to hosting Hyper-V on local storage for years I have, after much procrastination (and frustrations with no solution fitted the need) purchased an HP MSA P2000 G3 SAN (on a 50 percent cashback and a good deal even without that - Cheers Luke@Millgate!)
I choose the 6GB SAS version because:
1) Good compromise with cost against FC and 10GBe
2) Should have better performance than vanilla iSCSI
3) Don't envisage the school using more than 4 hosts, so I can have multipath direct to the SAN without mucking about with redundant 2xFC switches, 2x10Gbe switches etc, bit simpler.
4) Cost of HBA cards hell of a lot cheaper than 10Gbe NICs or FC HBA cards.
I have a DL380 G7 already running Hyper-V (dual Xeon 5620,24gb RAM, 8 x 300gb on Raid 10) running Finance SQL package,WSUS and Impero, hardly sweating at the moment
So will purchase another 2 x DL380 G7 (also Dual Xeon 5620, 2x146Gb 15k, 64Gb RAM) as hosts, plus 10Gbe NIC for VM to LAN communication.
Will bring the existing DL 380 G7 to spec as well, then transfer the VMs to SANs. With some RAM carried over I should have in the end 3 fairly well specified Hyper-V hosts with 72Gb RAM each. I'm also looking at using a another HP located in another block running a Virtual DC.. replicating all VMs with Veeam as a DR solution (not as comprehensive as a dual SAN set up, but again cost was a factor)
Have a few questions if you guys don't mind:
I'm planning to run SIMS, Exchange, Finance SQL Package (Correro), WSUS, Intranet, Impero, RDS - I hope to move the more mission critical stuff in the list once the MSA P2000 G3 has proved reliable say October. I am planning to buy 10 x 600GB 10K SAS, and maybe using the 6 x 300GB 10K SAS (that would be surplus from the existing DL380 G7) in there as well.
So with 10 x 600GB 10K SAS, 6 x 300GB 10K SAS, how would you curve up the RAID for different access needs? Would you not bother with the existing 300Gb SAS but get bigger/faster SAS drives instead? (again I did it for cost reasons and reusing old components)
With 10Gbe Ethernet for VM to LAN, Would you just bung all your VMs onto that one pipe for bandwidth or would you use Virtual LAN software to curve up the 10Gbe pipe(or again keep it simple?)
Looking forward to setting this up ! :-)
Cheers all !