How to zero blocks in order to reclaim thin provisioned disk space with VMWare Storage vMotion
Issue
Thin provisioning is a feature where the disk file increases over time. When a file is deleted from the virtual machine OS, the free space is available for the OS, but the disk file on the datastore/storage domain is not reduced and will keep being considered as used.
Environment
- Red Hat Enterprise Linux (RHEL)
- VMWare Storage vMotion
- VMware vSphere
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