Hi all, A quick note to let you know about a new KB article that has recently been published which reports incorrect values for Outstanding IO in the VSAN Observer tool used for monitoring performance of VSAN deployments when using vSphere 5.5U2. KB 2091979 reports the issue as follows: Virtual SAN (VSAN) Observer graphs in the “VSAN Client”, “VSAN Disk”, “DOM Owner” or individual VSAN object on the “VM” tab show very high Outstanding I/O (OIO) value that is inconsistent with the actual I/O load. Here is a sample screenshot from my VSAN environment running vSphere 5.5U2. As you can see…
There was a very interesting discussion on our internal forums here at VMware over the past week. One of our guys had built out a VSAN cluster, and everything looked good. However on attempting to deploy a virtual machine on the VSAN datastore, he kept hitting an error which reported that it “cannot complete file creation operation”. As I said, everything looked healthy. The cluster formed correctly, there were no network partitions and the network status was normal. So what could be the problem?
After a great VMworld 2014 in San Francisco, it’s nearly time for the European version which is once again in the beautiful city of Barcelona, Spain. I thought I’d put together a short post on some of my activities, Hopefully you can join me for some. Introduction to Virtual Volumes – vBrownBag session (Tuesday, October 14th at 2:15pm – Hang Space) I’m delighted to be joined by Nick Dyer of Nimble Storage for an overview of our forthcoming Virtual Volumes. I’ll be sharing our vision for VVols in the whole Software Define Storage story, and Nick will share with you…
Yesterday saw the release of vCloud Suite 5.8. While there are quite a few new enhancements to the VMware product line in this release, what really jumped out at me were the new PowerCLI cmdlets for Storage Policy Based Management (SPBM). SPBM is a critical component of VIrtual SAN (VSAN), and will play a major role in the Virtual Volumes (VVols) feature which has been tech previewed at VMworld 2014. VVols will enable our storage array partners to implement out Software Defined Storage vision – you can read more about there. So what are the new cmdlets for PowerCLI in…
I just spent a very useful week looking at how our customers might be able to protect vCenter Operations Manager (vCops) with VMware’s vSphere Replication (vR) and Site Recovery Manager (SRM) products. It was quite tricky to get this to work, if I’m perfectly honest, but that was the whole point of the exercise. What we learnt is being fed back to the various business units within VMware, to see if we can make this more intuitive and less complex to achieve, but if you are interested in knowing how to configure your DR infrastructure to protect vCops, please read…
A week or so ago, Duncan & I were given 4 e-book vouchers each from VMware Press for the Essential VSAN book. We decided that the easiest thing to do was to hold a competition to give-away the vouchers. We asked via twitter to give us a reason why you deserved the e-book, using the #essentialvirtualsan hash-tag. The best 8 tweets (and the ones which made us laugh) would get the e-book. These are the ones we selected:
It’s interesting how a number of conversations tend to pop up around the same issue in a short space of time. I read a very interesting thread from one of our support guys recently about trying to select the correct administrator credentials for the Ruby vSphere Console (RVC). RVC is a command line utility to manage various aspects of vSphere and has been extended to include VSAN functionality. The following day, I saw a thread on the VSAN forums for exactly the same thing – a customer experiencing difficultly logging into RVC on a remote vCenter server as administrator. The…