Friday, May 6, 2011

100% virtual memory

If you're running out of datastore disk space, consider configuring VMs with 100% virtual memory reservation as a short term solution. Doing so will zero the VMkernel swap file on the datastore which is equal to the amount of RAM assigned to the VM - Reservation.

The good news is that this change can be made while the VM is running.
The bad news is that the VMkernel swap file isn't deflated until the VM is powered off.
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