Below is our current server configuration. In a few weeks I will be simulating a disaster recovery by installing 5 new disks (1 hot spare) and restoring all VMs from the backups.
Will I gain anything by changing the RAID stripe size to something other than 64KB? The RAID controller has options for 8KB, 16KB, 32KB, 64KB, 128KB, 256KB, 512KB, 1MB.
Any recommendations based on the specification below would be greatly appreciated - thanks.
Hardware: Dell PowerEdge 2900 III Dell PERC 6/i Intel Xeon 2.5GHz (x2) 32GB RAM Seagate ST32000645SS ES.2 2TB Near-Line SAS 7.2K (x4) Software: Citrix XenServer 6.2 SP1 VM - Windows SBS 2008 x64 - Exchange & multiple SQL express instances VM - Windows Server 2003 R2 x86 - single SQL express instance VM - CentOS 6.6 x64 (x2) - cPanel & video transcoding and streaming VM - CentOS 6.3 x86 - Trixbox (VoIP) VM - PHD Virtual Backup 6.5.3 (running Ubuntu 12.04.1 LTS) Configuration: RAID 10, 64k Stripe Size