Is SATA II disks adequate for running VMs

5 pts.
Tags:
Hyper-V
Hyper-V on Windows Server 2008
SAS disks
SATA 2
SATA 2 disks
SATA hard drives
Serial Attached SCSI
Virtual Machines
Windows Server 2008
I built a Hyper-V server, which has a 6 channel SATA II controller. I will use one disk to run he host OS (Windows 2008 Server Enterprise - Core) and will use the remaining 5 SATA II disks to run VMs on. In addition the system has the capacity to hold 32GB RAM, and has 2 Quad CPU sockets. My question is, is the use of SATA II disks adequate for concurrently running, 5 to 10 virtual machines, assuming I have allocated enough memory and CPU to the VMs? Does SATA II disk throughput work well for running multiple VMS on the host. The VMS will be used for light testing - they are not being used for production work, but instead, for testing specific bugs in our products. So, various developers will be starting some VMS, running some code, reproducing the bug,then analyzing it. There will not be much sustained computing occuring on any of the VMs. But even if that were the case would the SATA II disks be adequate anyways? Or, will I need to get a SAS add on disk controller card and SAS disks to run the VMs on? As you might be able to tell, the system is being put into use in a Q&A lab environment.

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If you aren’t going to be placing a lot of load on the disks then SATA II should be fine.

I would use two disks for the host OS, and not one because if that one disk fails you will have lost the OS, and all your VMs will be offline until you get the host reinstalled and Hyper-V set back up.

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