Select the ESXi host, Configuration, Software, Security Profile, under Services, start the SSH service). The first step is to SSH to the console of the ESXi host (in most situations, you will need to relax the security settings while working on this issue). CTK files to the newly created folder and try to consolidate the snapshots.
The presented resolution is to create a temporary folder, move the. Time to check the vmware.log file of the virtual machine.Īs the KB article already suggest, the tracking files (CTK files) are not accessible (Could not open/create change tracking file). No panic, another KB will help you KB 2013520 “Committing or creating snapshots fail with the error: the virtual disk is either corrupted or not a supported format”. So far so good, but some moments later, a new message was received and the consolidation task was ended. Right-click the virtual machine and from the menu, choose Snapshot > Consolidate. VMware KB 2003638 “Consolidating snapshots in vSphere 5.x” details the backgrounds for this message and also presents a solution for resolving this issue. At the end of the day the snapshot was deleted. Virtual machine disks consolidation is needed”.Ī few days before, a snapshot was made as part of a regular update process. To consolidate the snapshot, right-click the virtual machine and choose Snapshot – Consolidate.One morning while reviewing a vSphere 5.1 cluster at a customer location, I noticed one VM with the following message “Configuration Issues. In the vCenter server on the Virtual Machines tab you can enable the field “Needs Consolidation” to filter all the VMs that needs consolidation. The snapshot manager shows no snapshots but there are delta files present on the datastore(s). In vSphere 5 you get a warning ‘ Virtual machine disks consolidation is needed’ when the virtual machine snapshot consolidation has failed.
In vSphere 5 you have a new feature that reports and make it possible to consolidate these ‘hidden’ snapshot(s).
To report these ‘hidden’ snapshots (prior vSphere 5), I created a script that searches all the datastores for ‘*.delta’ files and reported them by mail. These ‘hidden’ snapshot can cause the datastore to run out of space. When a snapshot didn’t commit properly, it can happen that the snapshot manager in the vCenter server shows no snapshot(s), but that there are still active delta files on the datastore.
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