DPM 2010 Shell Cmdlets usage leading to Powershell crash

Question

Hi all,
I have 71 DPM 2010 servers located at various places in the world. The most of them have a good and reliable network connection while some of them are connected via Sat-Link. All of my DPM 2010 servers have the same version, and are all running in identical
W2K8 Servers with Powershell 3 installed on them. I've made a script to inventorize Datasource Replica disk usage/allocation, shadow volume disk usage/allocation and the number of recovery points, their size. The goal of this script is to do the job that DPM
2010 should normaly do, for instance, deleting recovery points above retention date because it is not always the case... File recovery points number grows to their maximum (64) and for system State (because there is no User recovery on these ressources) their
number can be above 100 and generally it's about 150...
The script is running well locally, but if I try yo run a single Get-Datasource from one of my servers targeting another server, sometimes it leads to a simple Powershell crash... I also tried an invoke-command as job it's the same, the job returns nothing
but it is marked as completed or sometimes as failed. This happens always on some server and on the other only sometimes...
I really don't understand where is the origin of this problem... As anyone encountered such behaviour ?
Thanks a lot in advance ;-)

Answer 1

I did not find a solution to my problem yet, but I solved a part of it...
The first of all "Powershell crash" was solved by issuing a Disconnect-DPMServer before each Get-DataSource...
The second problem solved was the fact that the Get-DataSource cmdlet required the parameter <DPMServer> to be fully in Uppercase...
The last problem remaining is the Invoke-command that continue to fail... Here is my code :
$DPMServerStatusList = @()
foreach($DPMServer in $DPMServerList){
if(Test-Connection -Count 1 -BufferSize 16 -ComputerName $DPMServer){
$DPMServerStatusList += @{
Reachable = $True
Computer = $DPMServer
}else{
$DPMServerStatusList += @{
Reachable = $False
Computer = $DPMServer
$i=1
foreach ($DPMServerState in $DPMServerStatusList){
Write-Host $i ")" $DPMServerState.Computer " : " -BackgroundColor Blue -ForegroundColor White -NoNewline
if($DPMServerState.Reachable){
Write-Host "ONLINE" -BackgroundColor Green
$Computer = $DPMServerState.Computer
Invoke-Command -ComputerName $Computer -AsJob -JobName "$Computer" -ScriptBlock {
param(
$Computer
if((Get-PSSnapin -Name "Microsoft.DataProtectionManager.PowerShell" -ErrorAction SilentlyContinue) -eq $null ){
Add-PSSnapin -Name "Microsoft.DataProtectionManager.PowerShell"
Disconnect-DPMServer
$DPMDataSources = Get-Datasource -DPMServerName $Computer
$DPMTotalConsumedSpace = 0
$DPMTotalUnshrinkableSpace = 0
$DPMTotalRealSpaceUsage = 0
$DPMTotalWastedSpace = 0
$DPMDataSourceReport = @()
foreach($DPMDataSource in $DPMDataSources){
if($DPMDataSource.ReplicaSize -ge 0){
$DPMTotalConsumedSpace += $DPMDataSource.ReplicaSize
$DPMTotalConsumedSpace += $DPMDataSource.ShadowCopyAreaSize
$DPMTotalUnshrinkableSpace += $DPMDataSource.ReplicaSize
$DPMTotalRealSpaceUsage += $DPMDataSource.ReplicaUsedSpace
$DPMTotalRealSpaceUsage += $DPMDataSource.ShadowCopyUsedSpace
$DPMDataSourceName = $DPMDataSource.DatasourceName
$DPMProtectionGroupName = $DPMDataSource.ProtectionGroupName
$DPMReplicaSpaceStatus = "" + $(($DPMDataSource.ReplicaSize) / 1GB) + "GB / " + $(($DPMDataSource.ReplicaUsedSpace) / 1GB) + "GB"
$DPMShadowSpaceStatus = "" + $(($DPMDataSource.ShadowCopyAreaSize) / 1GB) + "GB / " + $(($DPMDataSource.ShadowCopyUsedSpace) / 1GB) + "GB"
$DPMOldestDate = $DPMDatasource.GetRecoveryPoint()[0].RepresentedPointInTime
$DPMRecoveryPointNumber = $DPMDatasource.GetRecoveryPoint().Count
$DPMRecoveryPointNumberToBeCleaned = $($DPMRecoveryPointNumber - 35)
#Write-Host ""
#Write-Host " Name : " $DPMDataSourceName
#Write-Host " ProtectionGroup : " $DPMProtectionGroupName
#Write-Host " Replica Space Status : " $DPMReplicaSpaceStatus
#write-Host " Shadow Copy Status : " $DPMShadowSpaceStatus
#Write-Host " Earliest Date : " $DPMOldestDate
#Write-Host " RecoveryPointsNumber : " $DPMRecoveryPointNumber
if($DPMRecoveryPointNumberToBeCleaned -gt 0){
$DPMDeleteFrom = $DPMDatasource.GetRecoveryPoint()[0].RepresentedPointInTime
$DPMDeleteTo = $DPMDatasource.GetRecoveryPoint()[$DPMRecoveryPointNumberToBeCleaned].RepresentedPointInTime
$DPMRestorePointsListToDelete = $(0..$DPMRecoveryPointNumberToBeCleaned) | %{$_}
#Write-Host " RecoveryPointsToBeCleaned : " $DPMRecoveryPointNumberToBeCleaned -BackgroundColor Red
#Write-host " Will delete Restore point from : " $DPMDeleteFrom " to " $DPMDeleteTo
#Write-host " Restore Point ID To delete : " $DPMRestorePointsListToDelete
$DPMDataSourceReport += @{
Name = $DPMDataSourceName
ProtectionGroup = $DPMProtectionGroupName
ReplicaSpaceStatus = $DPMReplicaSpaceStatus
ShadowSpaceStatus = $DPMShadowSpaceStatus
OldestDate = $DPMOldestDate
RecoveryPointNumber = $DPMRecoveryPointNumber
RecoveryPointNumberToBeCleaned = $DPMRecoveryPointNumberToBeCleaned
DeleteFrom = $DPMDeleteFrom
DeleteTo = $DPMDeleteTo
RestorePointsListToDelete = $DPMRestorePointsListToDelete
}else{
#Write-Host " RecoveryPointsToBeCleaned : None" -BackgroundColor Green
$DPMDataSourceReport += @{
Name = $DPMDataSourceName
ProtectionGroup = $DPMProtectionGroupName
ReplicaSpaceStatus = $DPMReplicaSpaceStatus
ShadowSpaceStatus = $DPMShadowSpaceStatus
OldestDate = $DPMOldestDate
RecoveryPointNumber = $DPMRecoveryPointNumber
RecoveryPointNumberToBeCleaned = 0
DeleteFrom = 0
DeleteTo = 0
RestorePointsListToDelete = @()
#Write-Host " Realocate Data Require : " $DPMDatasource.ReAllocationRequired
$DPMTotalWastedSpace = $DPMTotalConsumedSpace - $DPMTotalRealSpaceUsage
#Write-Host "_______________________________________________________"
#Write-Host "Global Status : "
#Write-Host " Disk Allocation : " $($DPMTotalConsumedSpace / 1GB) "GB"
#Write-Host " Disk Usage : " $($DPMTotalRealSpaceUsage / 1GB) "GB"
#Write-Host " Locked Space : " $($DPMTotalUnshrinkableSpace / 1GB) "GB"
#Write-Host " Wasted Space : " $($DPMTotalWastedSpace / 1GB) "GB"
return $DPMFinalReportArray = @{
ServerName = $Computer
DiskAllocation = $DPMTotalConsumedSpace
DiskUsage = $DPMTotalRealSpaceUsage
LockedSpace = $DPMTotalUnshrinkableSpace
WastedSpace = $DPMTotalWastedSpace
DataSources = $DPMDataSourceReport
} -ArgumentList $Computer
}else{
Write-Host ": OFFLINE" -BackgroundColor Red
$i++
If it can help... What do am I doing wrong ?