As some already noticed; when creating a snapshot on a VM with two disks the block size of the VMFS volume which hold the working directory is checked before the snapshot is taken. As reported by VMTN User Pizang this was not the case in ESX 3.x. You can imagine that this can cause issues [...]
Posts Tagged ‘snapshots’
Consolidating snapshots
December 16th, 2008
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I was just reading this excellent KB article on consolidating snapshots. It really contains a wealth of information and a procedure on how to remove a snapshot of a disk that has been changed in size for instance.
if the disk has been changed in size the following error will show up during the boot process [...]
Snapshots, the revision
December 4th, 2008
3 Comments
I was reading Jason Boche’s blog on snapshots yesterday and noticed a misunderstanding. I tweeted Jason about this and his blog was updated in a sec. But I thought it might be handy to actually outline the basics again especially because during the VMTN Experts Podcast there was a huge discussion on snapshots. Unfortunately I [...]
Defraging a VMDK
November 1st, 2008
3 Comments
Team Fusion wrote a great post on “defragging” vm’s and why you shouldn’t do it. Or at least be very careful about it. Make sure to read it!
Before we begin, it’s important to note that defragmentation isn’t a necessary task – your virtual machine will still work just fine even if you never defrag, and [...]
VSS Snapshots
July 26th, 2008
5 Comments
If you just upgraded to 3.5 Update 2 and updated VMware tools and want to use VSS for snapshotting than you will have to enable this manually for each VM:
In the VMware Tools installer, select Modify > Drivers > VSS.
Complete the installation process.
Restart the virtual machine to make sure VSS components are installed and running.
Checking for snapshots, html email report!
February 6th, 2008
7 Comments
When reading the VMTN forum I stumbled upon a topic about checking the VMFS for snapshots. Besides snaphunter by Xtravirt, which is an excellent script, there isn’t much out there. You can check the VirtualCenter database for snapshots but this way you would not notice the orphaned snapshots. (Orphaned snapshot occur when the vmsd file [...]
Undocumented VCB config.js feature
February 6th, 2008
6 Comments
One of my customers wanted to use the default VCB framework but did not want to quiesce the VM for several reasons. (Databases, Active Directory etc.) I could not find an option in the config.js file but noticed the following in the file glue.js:
// A fallback to be able to switch to [...]
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