SvMotion Report

[Pilu1978]

Hi,

I have a requirement to storage vmotion VMs with size more than 500 GB from one cluster to another cluster . Before that I would like to create a report to check how many datastores in the destination cluster can accommodate how many 500+ GB size VMs.

Please help.

[LucD]

Try something like this

Get-Cluster -Name cluster2 |

Get-Datastore |

where{$_.ExtensionData.Summary.MultipleHostAccess -and $_.FreeSpaceGB -ge 500} |

Select Name,@{N='Number of VMs';E={[math]::Floor($_.FreeSpaceGB/500)}}

[Pilu1978]

Thanks LucD for your reply.

If I want to create the report like first 500 GB VM will go to first DS which has more than 500 GB freespace. After moving first VM if the datastore still has 500 + free space then the 2nd VM will move to same datastore otherwise to the next datastore.

Please let me know how to achieve the same.

[LucD]

The script I gave tells you how many VMs can go to each datastore.
Is this now another question for doing the actual vMotion?

[Pilu1978]

Nope I just wanted that report in presentable format so that I can show it to the management.

VMName	VMSizeGB	Datastore	TotalFreeSpaceGB	FreeSpaceGB_AfterMigration
VM1	500	DS1	1200	700
VM2	500	DS1	700	200
VM3	500	DS2	700	200
…

[LucD · Accepted solution]

Like this you mean?

$vmNr = 1

$vmSizeGB = 500

Get-Cluster -Name cluster2 |

Get-Datastore -PipelineVariable ds |

where{$_.ExtensionData.Summary.MultipleHostAccess -and $_.FreeSpaceGB -ge $vmSizeGB} |

ForEach-Object -Process {

    $free = $ds.FreeSpaceGB

    1..[math]::floor($ds.FreeSpaceGB/$vmSizeGB) | %{

        '' | Select @{N='VMName';E={"VM$vmNr"}},

            @{N='VMSizeGB';E={$vmSizeGB}},

            @{N='Datastore';E={$ds.Name}},

            @{N='TotalFreeSpaceGB';E={[math]::Round($free)}},

            @{N='FreeSpaceGB_AfterMigration';E={[math]::Round($free - $vmSizeGB)}}

        $vmNr++

        $free -= $vmSizeGB

    }

}

[Pilu1978]

Thanks a lot. Really appreciated.