Delete Delta Vmdk Files Jun 2026
# List all delta files vmdk-cleanup --scan --datastore datastore1
To delete a delta VMDK file is to merge it. Whether you use the Snapshot Manager's "Delete" button or the "Consolidate" feature, the goal is to commit the changes and clear the storage overhead. By monitoring your datastore usage and enforcing snapshot retention policies, you can prevent delta files from becoming a critical performance or storage issue.
To safely manage your storage and performance, follow the steps below to remove these files correctly. 1. Why You Must Not Delete Delta Files Manually delete delta vmdk files
Here are the three methods to handle this process, ranked from easiest to most advanced.
# Connect to your vCenter server Connect-VIServer -Server <vcenter_server> # List all delta files vmdk-cleanup --scan --datastore
Safely identify and delete orphaned or obsolete delta VMDK files (child disks) from VMware datastores.
Deleting delta VMDK files is a critical maintenance task for VMware administrators, but doing it incorrectly can lead to irreversible data loss or VM corruption. In a virtual environment, (e.g., vmname-000001-delta.vmdk ) are child disks created whenever a snapshot is taken. They store all changes made to the virtual machine after the snapshot point, while the original base disk becomes read-only. To safely manage your storage and performance, follow
To understand how to delete them, you must first understand what they are.