Veeam has found a new bug in VMware Change Blocking Track (CBT) that can/will corrupt backups. When doing a revert on a snapshot, the CBT “QueryChangedDiskAreas API” will return incorrect data, to the backup solution. VMware has published a KB71155 about the problem and says that this i is working as designed! So the solution/workaround […]
VMware ESXi 6.0 has a critical bug in its CBT, that may result inconsistent virtual machine backups. http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=2136854 VMware has just released a new patch thats fixes this: http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=2137546 I have recommended my customer to reset the CBT on there VMs, they can use the script from this link: https://github.com/WahlNetwork/powershell-scripts/blob/master/VMware%20vSphere/Reset-CBT.ps1 Veeam has tested and found that […]
On January 27, 2015 VMware released new patches for vSphere 5.5, vCenter 5.5 Update 2d, and ESXi 5.5 update 2d. One of the resolved items in ESXi 5.5 Update 2, is the CBT bug, seen in this VMware KB: http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=2090639 This KB is not updated, with this information at the moment, but it is in one of the release notes […]
I had to do some maintenance on a host but one of the Virtual Machines failed to move away, and came with a “General System Error”: In the log file (vmware.log) of the Virtual Machine was the following lines: 2014-09-08T10:42:01.220Z| Worker#0| I120: DISKLIB-CTK : Could not open tracking file. File open returned IO error […]