Remove snapshot unable to access file since it is locked

Virtual disk consolidation is the process of merging virtual disk files created after taking VM snapshots. You can initiate disk consolidation on demand to avoid performance degradation and other issues.

When you take a snapshot, delta disks are created and changes are written to the appropriate delta disk the latest delta disk by default, until one of the previous snapshots is selected to restore the virtual machine. As a result, redundant data is present in the virtual machine storage because each delta disk contains all changes made as compared to the previous delta disk state, and the parent disk remains unchanged.

When the chain of snapshots and related virtual disk files becomes large, performance degrades. Storage space is cleaned after you consolidate virtual machine disk files. Remember that VMware recommends using no more than 32 snapshots per VM. One of the common reasons for this error message is incorrectly deleting a VM snapshot, which can leave VMDK files related to snapshots and log files on the datastore for example, after you performed the Delete All or Delete operation for VM snapshots.

This operation consolidates all redundant redo logs on your virtual machine. Are you sure you want to continue? Note : If there is a concern that some data can be lost during VMware disk consolidation, make a VMware VM backup , for example, copy all VM files to another folder on a datastore and then perform VMware disk consolidation.

Wait until the VMware disk consolidation is complete and the logs are cleared. You can see the task progress in the task panel at the bottom of the VMware vSphere Client interface.

If the VM is running, VM performance can degrade during this operation. The time needed to finish this operation depends on the VM size, the number of snapshots, and VM load. After the VMware disk consolidation task is finished, the warning that VMware virtual machine disks consolidation is needed should disappear. You can try consolidating the Virtual Machine disk files from Consolidate option under Snapshot Menu. When I started the Consolidate process, it came back with a Unable to access file since it is locked error.

Once we confirm the ESXi host we can place the host in maintenance mode, DRS will vMotion all VMs to another host in the cluster and restart the hostd service on the host using the below command. View all posts by Ahsan Farooqui.

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