A couple of days ago we had a discussion on Admission Control and DPM internally at VMware. One of our customers had enabled DPM on a HA cluster. During the evening 4 out of 5 hosts where placed into standby mode because of this. This customer, as many of our customers have these days, had vCenter running virtual. This of [...]
I discussed slot sizes a week ago but forgot to add a screenshot of a great new vSphere feature which reports slot info of a cluster. I just love vSphere!
As some of you, and I hope all of you, have noticed by now when you create / expand / extent / delete a datastore a rescan of your HBAs will automatically be initiated. This however can lead to a “rescan storm” when you are building a new environment. You can imagine that it’s pointless to rescan your HBA 25 [...]
I was just reading this topic on the VMTN community. In short, a second vswp file gets created during a VMotion. As the starter of this topic noticed it could lead to not being able to VMotion VMs if you don’t have enough free disk space on your VMFS volume. One of my UK colleagues, David Burgess, jumped in and [...]
VMware vCenter Server 2.5 Update 5 – includes Converter Enterprise Latest Version: 2.5 Update 5 | 2009/07/10 Download | Release Notes The list of resolved issues is quite short this time. But a really important issue has been resolved and that’s why I recommend everyone who’s still running vCenter 2.5 to look in to this upgrade! Support for High Consolidation in [...]
I received this how to in my email a couple of days ago from colleague Daniel Langenhan. Daniel was so kind to let my share this with you. If you are looking into installing vCenter on Windows 2008 with an Oracle database this might come in handy: Download 32bit Oracle client (even on a 64 bit system). Oracle 9i is [...]
A question that pops up on the VMTN Community once every day is what size VMFS datastore should I create? The answer always varies, one says “500Gb” the other says “1TB”. Now the real answer should be, it depends. Most companies can use a simple formula in my opinion. First you should answer these questions: What’s the maximum amount of [...]
