I was reading Eric Siebert’s excellent article on Changed Block Tracking(CBT) and the article on Punching Cloud on this new feature which is part of vSphere. CBT enables incremental backups of full VMDKs. Something that isn’t covered is what the “block” part of Changed Block Tracking actually stands for.
Someone asked me on the VMTN Communities [...]
Posts Tagged ‘backup’
Changed block tracking?
December 21st, 2009
6 Comments
Using the VSS Driver for backups?
December 2nd, 2009
1 Comment
I received an email from one of my readers, Kevin, about using the VSS Driver for Backups. As of 3.5 Update 2 this feature has been introduced. I knew that there was a catch to using the VSS Driver but it seems that many people have overlooked a little detail on page 50 of the [...]
in the ghetto….
November 18th, 2009
No Comments
William Lam just updated two of his most popular scripts. If you haven’t looked at them yet, make sure you do as they are worth it. ghettoVCB(g2) enables the backup of virtual machines residing on either an ESX or ESXi host. ghettoVCBg2 is a complete rewritten and enhanced version of ghettoVCB or as William puts [...]
VMware Data Recovery 1.0.2
September 10th, 2009
No Comments
VMware just released a brand new version of VMware Data Recovery.
Version 1.0.2
Build Number 188925
Release Date 2009/09/09
This releases fixes a couple of known issues:
Various Integrity Check Issues
Under certain circumstances, integrity checks reported damaged restore points and cannot load session errors. For example, such problems might be reported if:
A combination of simultaneous overlapping backups and integrity checks [...]
VMware Data Recovery 1.0.1 released!
July 12th, 2009
No Comments
Although the VMware download section has not been updated VMware Data Recovery 1.0.1 has been officially released. Click on VMware Data Recovery 1.0 in the download section and you will be presented with the following:
Latest Released Version: 1.0.1 | [...]
VMware vCenter Data Recovery
March 3rd, 2009
12 Comments
During VMworld I quickly wrote down the steps that VMware vCenter Data Recovery takes when backing up VMs. I added one step which isn’t unimportant, changed block tracking(4):
Create a snapshot of disk(s)
Hot add disk(s) to Data Recovery appliance
Create hashes of (hopefully variable) blocks
Read data of changed blocks if previous backup exists
Dedupe(using variable chunk sizes) and [...]
VMworld day 2 – Random stuff and Data recovery
February 25th, 2009
2 Comments
What a day again, and it’s actually not finished cause within a couple of minutes the VMworld Europe 2009 party will start.
The VMTN Experts session was actually, in my opinion, pretty good today. We had way more people coming over that were asking questions or just came over to have a chat with one of [...]
vSphere 4.0 Quick Start Guide