VMWare ESX/VSphere: Does "system" disk performance matter?
Posted on 2010-11-24
Does the type of disk used for the service console/root filesystem affect performance in ESX/VSphere? I'm going to store my guest machines on an Openfiler SAN with 10k SAS disks and am thinking I can go with cheap 7.2k SATA storage on the host machines.
This is for my home so I want to keep costs down. Going SAS will require me to buy a more expensive motherboard with PCI-E slots as well as a SAS card in addition to significantly more expensive disks. I suppose I could go SSD, but that also adds significant cost. I don't mind spending a few extra bucks if it's worthwhile, but if it doesn't really matter why bother?