[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: [Xen-users] SW RAID powered Xen node - knowledgeable feedback much needed

Adding HW raid would mean an 60% price increase which would lead to 60%
more VEs on the node. Would the 60% increase in VEs count but with HW RAID
be preferable over the SW RAID with less VEs?

Why would adding hardware raid result in a 60% increase in guests? HW RAID won't necessarily perform any better than SW RAID -- particularly depending on your workload -- so I wouldn't count on being able to load up more i/o. I think Linux's software RAID is great, I've used it for years, I've done things like mirror a local SATA disk to a remote iSCSI disk for better cross-box redundancy, I've booted from it, run VMs from it, etc., but I would still almost always prefer hardware raid as long as we're talking about a decent (LSI, Mylex, Intel, Adaptec) controller.


John Madden
Sr UNIX Systems Engineer / Office of Technology
Ivy Tech Community College of Indiana

Xen-users mailing list



Lists.xenproject.org is hosted with RackSpace, monitoring our
servers 24x7x365 and backed by RackSpace's Fanatical Support®.