Dell R715 local storage & VSA - best 'value for money' SFF drives?
Posted on 2012-04-09
Hi, Im building a new vmware essentials plus cluster and wanted to get some ideas on which local hard drives to choose with my new vSphere Storage Appliance (VSA), so i can have shared storage.
The servers are Dell R715 (each one with AMD 6174 2.2GHz 12-Core Processors, 64GB DDR3, H200 controller)
I plan to use the cluster for about 10 VM's including two SQL2008 databases (1 DB for Autodesk Vault 2012 for 10 users), and one DB for ERP system (dynamics ax 2012 for 40 users)
Should I go for SAS 15k drives (can't afford many) or SATA 10k?
Is it necessary to upgrade to H700/H710 controller so I have battery-backed cache?
I'd say I'm looking to spend up to $3,000 for as much storage I can get (plus the VSA software cost), since the servers cost me about $4000 each.
Should i go for RAID6 config or RAID10 on the drives?
VSA admin guide recommends 8 local drives on each host but I find this hard because of budget constraints (ie. 2 hosts * 8 HP 15k SAS drives each could cost more than $10k)
Also, is the AMD edition of the R715 supported in the VSA HCL?
Any other considerations in terms of performance when using the VSA? Thank you