VMware vSphere Generates Insane Amounts of I/O18 May 2009 · Filed in News
The news has hit the Internet in various places, but I wanted to point it out here because it does help to debunk the myth that virtualization can’t handle all workload. What’s the news? EMC and VMware have jointly demonstrated that a single VMware vSphere host running just three virtual machines can drive just above 350,000 I/O operations per second (IOPS).
I’ll let that sink in for just a moment. In case you don’t understand just how significant that number is, consider that a typical Fibre Channel drive can sustain somewhere just below 200 IOPS (and that’s being a bit generous). At 200 IOPS per drive, driving 350,000 IOPS would require 1,750 drives. (Fortunately, EMC used Enterprise Flash Drives (EFDs), so far fewer drives were required.) I would wonder how many of us have actually seen a storage array with that many drives.
So, next time you are thinking that VMware vSphere can’t handle your database workloads, keep these figures in mind. Or, if you’re a consultant like me, use these figures next time your customer says that virtualization can’t handle I/O-intensive workloads. This looks like pretty definitive results to me.Tags: EMC · ESX · SAN · Storage · VMware · Virtualization · vSphere Previous Post: Summary of CDP Articles Next Post: VMware vSphere vDS, VMkernel Ports, and Jumbo Frames