Home / server / Questions / 410970
In Process
Daniel T. Magnusson
Asked: 2012-07-26 00:34:29 +0800 CST

How to turn off VMware virtual machines goes to "sleep" if no activity?

  • 772

I have a couple machines, that have close to no activity for a a longer period of time.

And when i try to connect to them with ssh after a week or soo, its like they have gone into "sleep mode", everything is slow.

Load is not reporting anything, but basic command in terminal takes ~10seconds to type.

I can restart/warm it up for 15mins and it works fine again. What's happening? how can i turn of this "suspend virtual machine" issue?

They are running Ubuntu 10.04.2 LTS. I use VMware ESXi 4.1.0 and vSphere cLient 4.1.0

Software used is nginx_0.7.65, django 1.3.1, uwsgi-0.9.5.4

vmware-esxi

1 Answers

  1. VMware will re-assign memory that hasn't been touched in a long time.

    You can prevent this by locking memory on the VM in the resources tab; this reserves physical memory for the VM and it won't be allocated to another VM.

    Here is a nice write-up on VMware memory management: http://www.vmware.com/files/pdf/perf-vsphere-memory_management.pdf

    • 2