Delete change block tracking files

[fujicolor]

Vsphere 5.5 , Veeam backup fails with error; can I delete the change tracking target files from the datastore without getting in trouble with these production servers

THANK YOU FOR THE FEEDBACK,..,..

W2K12MIRO03	Error	2:36:11 AM	2:37:41 AM	0.0 B 0.0 B 0.0 B	0:01:29	Failed   to create VM snapshot. Error: CreateSnapshot failed, vmRef vm-77944, timeout   1800000, snName VEEAM BACKUP TEMPORARY SNAPSHOT, snDescription Please do not   delete this snapshot. It is being used by Veeam Backup., memory False,   quiesce False   Error: An error occurred while saving the snapshot:   Change tracking target file already exists.
W2K8APP01	Error	2:36:12 AM	2:38:02 AM	0.0 B 0.0 B 0.0 B	0:01:50	Failed   to create VM snapshot. Error: CreateSnapshot failed, vmRef vm-867, timeout   1800000, snName VEEAM BACKUP TEMPORARY SNAPSHOT, snDescription Please do not   delete this snapshot. It is being used by Veeam Backup., memory False,   quiesce False   Error: An error occurred while saving the snapshot:   Change tracking target file already exists.
W2K8FUJIFE70	Error	2:37:47 AM	2:38:47 AM	0.0 B 0.0 B 0.0 B	0:00:59	Failed   to create VM snapshot. Error: CreateSnapshot failed, vmRef vm-111, timeout   1800000, snName VEEAM BACKUP TEMPORARY SNAPSHOT, snDescription Please do not   delete this snapshot. It is being used by Veeam Backup., memory False,   quiesce False   Error: An error occurred while saving the snapshot:   Change tracking target file already exists.

[cyberpaul · Accepted solution]

Hi fujicolor,

you have probably hit this issue: VMware KB Article 2135468

It is recommended to patch your ESXi hosts. As a workaround, VMware suggests to move problematic ctk files into a separate directory.

Regards, Pavel

[daphnissov]

See also this. KB1113: How to reset VMware Virtual Machine CBT . Reset CBT and don't just delete the files.

[fujicolor]

Pavel,

I stage the patch in update manager to my ESXI hosts and it says ; not compliant..?

I this cause of my esxi hosts version 5.5.0 update 2 iso 5773..?

best regards

Fuji