get harddisk sharing mode, and storage policy

MRoushdy · ‎09-29-2020

Hello,

I have two inquiries please:

1- I 'm creating a lot of VMDKs, and I need a simple command to enable "multi-writer" mode. I came across a complicated script that I have no time now to tune ot, so, I hope I get a simple command to achieve this.

2- I need to query the disks and list )select) their sharing mode, and current storage policy.

Thank you,

vEXPERT - VCAP-DCV - Blog: arabitnetwork.com | YouTube: youtube.com/c/MohamedRoushdy

LucD · ‎09-29-2020

1. There is no cmdlet for that if that is what you mean by 'simple' command.
You need to call the API method

2. After a Get-HardDisk you can get the sharing mode via a calculated property

@{N='HDSharingMode';E={$_.ExtensionData.Backing.Sharing}}

You can find the storage policy for harddisks with the Get-SpbmEntityConfiguration cmdlet.

Get-VM -Name MyVM | Get-HardDisk |

Get-SpbmEntityConfiguration

Blog: lucd.info Twitter: @LucD22 Co-author PowerCLI Reference

View solution in original post

MRoushdy · ‎09-29-2020

Thanks Boss

vEXPERT - VCAP-DCV - Blog: arabitnetwork.com | YouTube: youtube.com/c/MohamedRoushdy

dbutch1976 · ‎07-18-2022

Hi LucD!

This was very useful for me. I am trying to generate a list of all hosts which I need to patch (everything not presently running 7.0.3c) which contain VMs which have shared multi-writer disks. The following works:

Get-VMHost | Where-Object {$_.version -notmatch "7.0.3"} | get-vm -PipelineVariable vm | Get-HardDisk | Where-Object {$_.ExtensionData.Backing.Sharing -in 'sharingMultiWriter'} | Select Parent,@{N='VMHost';E={$vm.VMHost.Name}} | Out-Default

This only issue is that VMs which have mutliple shared disks appear in the output mulitple times. Is there a way to prune the output so that the result only appears once?

Thanks!

LucD · ‎07-18-2022

With Sort-Object and the Unique switch

Get-VMHost | Where-Object {$_.version -notmatch "7.0.3"} | 
Get-VM -PipelineVariable vm | 
Get-HardDisk | 
Where-Object {$_.ExtensionData.Backing.Sharing -in 'sharingMultiWriter'} | 
Select Parent,@{N='VMHost';E={$vm.VMHost.Name}} | 
Sort-Object -Property Parent -Unique |
Out-Default

Blog: lucd.info Twitter: @LucD22 Co-author PowerCLI Reference