Changing parameters within a VM with /proc

It is possible to change parameters of VM on the fly without a reboot from the Service Console. However, generally you are restricted to parameters that do not require a power-down in the first place. This example shows how to find the PID for virtual machine, then adjust its CPU shares

  1. Generate a list of WID and the friendly name of a virtual machinevm-support -xNote:
    This command must be run from /root as root
  2. cd /proc/vmware/vm/wmidnumber
  3. ls
  4. cd cpu
  5. ls
  6. cat shareNote:
    This should show the default value (unless it has been changed) of 1000 shares. To change this to 2000 type:
  7. echo 2000 >> shares

    Note:
    These changes DO NOT survive reboots

 

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This was first published in November 2005

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