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You are here: Home / Automation / Script – Configure VM Disk Shares (vmDiskSharesMgmt.pl)

Script – Configure VM Disk Shares (vmDiskSharesMgmt.pl)

07/07/2010 by William Lam 3 Comments

I recently received an email about automating the configuration of VM disk shares. I thought it was an interesting request since I do not know how many people actually make use of this feature. By default, the shares on a virtual disk is set to "normal" or 1000 shares. You can change the value between low (500), normal (1000), high (2000) or a custom value. The following script helps a user to perform a bulk update across multiple VMs and supports multiple virtual disks.

Download: vmDiskSharesMgmt.pl

The script requires that you connect to your vCenter server and provide the following input parameters:

--diskshares_file = Is the name of the diskshares input file that contains the names of the VMs, the hard disks and their corresponding shares value which can be (low, normal, high or custom)

Here is an example of the diskshares input file:

[[email protected] ~]$ cat diskshares.txt
# [VMNAME];[HDX,SHARES_VALUE]=[HDY,SHARES_VALUE]=[HDZ,SHARES_VALUES]
#
# SHARES_VALUE = low, normal, high, XXXX (custom)
#
# e.g.
# myvm;hd1,low=hd2,high=hd3=2001
#
Synapse;hd1,high
Imager;hd1,low=hd2,1500=hd3,2500=hd4,high
William-XP;hd1,3000

In the above example, we have the following VMs and configurations to be set:

Synapse
Hard Disk1 = high (2000)

Imager
Hard Disk1 = low (500)
Hard Disk2 = 1500
Hard Disk3 = 2500
Hard Disk4 = high (2000)

William-XP
Hard Disk1 = 3000

Here is an example execution:

Here we verify one of the VMs "Imager" and it's configured disk shares:

Hopefully you will find this script to be useful

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Filed Under: Automation Tagged With: perl, sdk, shares

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Comments

  1. Ashok says

    07/05/2013 at 9:52 am

    Thanks William. Just a quick clarification.
    Is this script compatible with vSphere 5.1 environment or any specific changes to be made?

    Reply
    • William Lam says

      07/05/2013 at 2:56 pm

      That’s correct. No change necessary

      Reply
    • Ashok says

      07/06/2013 at 11:53 am

      Thank you for the clarification!

      Reply

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Author

William Lam is a Senior Staff Solution Architect working in the VMware Cloud team within the Cloud Services Business Unit (CSBU) at VMware. He focuses on Automation, Integration and Operation for the VMware Cloud Software Defined Datacenters (SDDC)

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