You can use the vdmadmin command with the -M option to mark an instant-clone virtual machine for disk space reclamation. Horizon directs the ESXi host to reclaim disk space on the instant-clone OS disk without waiting for the unused space on the OS disk to reach the minimum threshold that is specified in Horizon Console.
Syntax
vdmadmin -M [-b authentication_arguments] -d desktop -m machine -markForSpaceReclamation
Usage Notes
With this option, you can initiate disk space reclamation on a particular virtual machine for demonstration or troubleshooting purposes.
Space reclamation does not take place if you run this command when a blackout period is in effect.
Before using this option, see "Reclaim Disk Space on Instant Clones" in the Windows Desktops and Applications in Horizon 8 document. This option is only applicable to non-vSAN datastores prior to vSphere 6.7 where space reclamation operation is performed by Horizon.
Options
| Option | Description |
|---|---|
| -d desktop | Specifies the name of the desktop pool. |
| -m machine | Specifies the name of the virtual machine. |
| -MarkForSpaceReclamation | Marks the virtual machine for disk space reclamation. |
Example
Marks the virtual machine machine3 in the desktop pool pool1 for disk space reclamation.
vdmadmin -M -d pool1 -m machine3 -markForSpaceReclamation
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