6.1

Table Of Contents
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. View 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 View
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 View is using vCenter Server and ESXi version 5.1 or later.
n
Verify that VMware Tools that are provided with vSphere version 5.1 or later are installed on the
virtual machine.
n
Verify that the virtual machine is virtual hardware version 9 or later.
n
In View Administrator, verify that the Enable space reclamation option is selected for vCenter Server.
See “Allow vSphere to Reclaim Disk Space in Linked-Clone Virtual Machines,” on page 18.
n
In View Administrator, verify that the Reclaim VM disk space option was selected for the desktop
pool. See "Reclaim Disk Space on Linked-Clone Desktops" in the Setting Up Desktop and Application Pools
in View document.
n
Verify that the virtual machine is powered on before you initiate the space reclamation operation.
n
Verify that a blackout period is not in effect. See "Set Blackout Times for ESXi Operations on Remote
Desktops" in the Setting Up Desktop and Application Pools in View document.
Options
Table 1311. Options for Reclaiming Disk Space on Virtual Machines
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
View Administration
210 VMware, Inc.