VMware PEX 2010: Tech Preview of DRS I/O Resource Shares
February 14th, 2010 | 
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I thought I was done blogging about VMware Partner Exchange 2010, but, twist my arm, there seems to be enough public knowledge about an upcoming feature of vSphere that I thought I would briefly point it out.
Steve Herrod discussed in his Wednesday Keynote that vSphere will soon have the ability to set DRS Resource Shares on I/O per VM. Here’s a photo of Herrod discussing the feature last Wednesday.
Other’s have posted on this feature this week as well as in the not to distant past. Check out these posts for more info:
News from VMware’s Partner Exchange Keynote – Gabe’s Virtual World
“IO-Resource Management. We know DRS monitors memory and cpu usage. Now with the new IO-RM it can also move workloads when disk IO becomes a problem.”
Gabe primarily put together his post based on watching tweets that were coming in during the Keynotes. Hint! Hint! Check his full post for more details about things I mentioned in my wrap up post but couldn’t go into detail.
TA3461 – IO DRS: Tech Preview for VM Performance Isolation – It’s Just Another Layer
“The Problem:
Many different workloads hit the same set of disks/arrays/spindles etc. Low priority processes that run ad-hoc or other times will cause higher priority systems to experience an impact. What you want to see is that the low priority VM gets less performance than the higher priority systems. The question is how you can do this?
A solution: Resource Controls
Assigning out shares based on disk performances. Just like CPU/Memory shares of the original ESX days. Higher shares total for a host gets higher priority for that shared VMFS volume.”
Ian’s post is from a session at VMworld. Check it out for a lot more details.
Duncan Epping makes reference to the preview of the feature in his PEX summary post, but obviously as a VMware employee can’t provide any info.
Finally, the actual “arm twist” for me to write this quick post came from a track back from the VirtuallNil blog. Thanks Neil for your post providing the reminder / motivation and the track back link!
Like I said before, there was a lot previewed at VMware PEX this year!
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Posted in events, partner, virtualization, vmware | 
Tags: drs, partner, partner exchange 2010, pex2010, resourcepools, vmware, vmwarepex
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Neil
