Our VDI needs are so low that we're not maxing out a single array. We're just doing business apps. But I still find the read/write ratio is between 50/50 and 20/80 instead of the 80/20 I was expecting. Considering a write on raid5 generates 4 backend iops means that the difference on an assumed 10 client iops is upwards to 32 - 16 = 16 backend iops per client more than I had initially counted on. Scale that to 100 clients and you might max out an array far earlier than you were expecting. Or not, depending on the VDI technology and desktop usage.
I'm advocating going slow, measure and don't assume that a client doesnt use any iops. -Anders On Fri, Mar 26, 2010 at 1:41 PM, N Parr <npar...@mortonind.com> wrote: > What kind of ratio are you seeing for clients to array with VDI. And are > you doing anything intensive with your desktops or are they just normal > business apps? I really want to use VDI in the future when we can finally > start doing OS refreshes. > > ------------------------------ > *From:* Anders Blomgren [mailto:chanks...@gmail.com] > *Sent:* Friday, March 26, 2010 12:50 AM > > *To:* NT System Admin Issues > *Subject:* Re: Equallogic and Sata > > I'll agree with the others and say that SATA works great on the EQ's > (even though I use the SAS versions nowadays). > > You mentioned virtual machines... one thing that will eat up iops like > nothing else is if you start doing vdi on top of the virtual machines. If > so, measure carefully with San HQ and move slowly so that you don't max out > the array. > > -Anders > > On Thu, Mar 25, 2010 at 9:06 PM, Steve Ens <stevey...@gmail.com> wrote: > >> Anyone have experience running the SATA option in the equallogic P4000 >> series? My vendor is quoting me the exact same price for SATA (16TB) as he >> is for 7.2TB of SAS. I'll be running snapshots, virtual machines and such >> off the SAN. Any experience with these models? My other option is the HP >> P4000 G2 series. >> >> >> >> >> >> > > > > > > > > > ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ ~ <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/> ~
