Administration

Table 12-10. Options for Displaying Information About Machines
Option Description
-d desktop Specifies the name of the desktop pool.
-m machine Specifies the name of the virtual machine.
-u domain\user Specifies the login name and domain of the user.
Examples
Display information about the underlying machine for the remote desktop in the pool dtpool2
that is assigned to the user Jo in the CORP domain and format the output as XML using ASCII
characters.
vdmadmin -M -u CORP\Jo -d dtpool2 -xml -n
Display information about the machine machine3 and format the output as comma-separated
values.
vdmadmin -M -m machine3 -csv
Reclaiming Disk Space on Virtual Machines Using the ‑M
Option
You can use the vdmadmin command with the -M option to mark a linked-clone virtual machine for
disk space reclamation. Horizon 7 directs the ESXi host to reclaim disk space on the linked-clone
OS disk without waiting for the unused space on the OS disk to reach the minimum threshold that
is specified in Horizon Administrator.
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.
The following prerequisites must be met before you can reclaim disk space by using the vdmadmin
command with the -M option:
n Verify that Horizon 7 is using vCenter Server and ESXi version 5.1 or later.
Horizon 7 Administration
VMware, Inc. 271