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Get Dirsync status with PowerShell

One of the biggest challenges I faced while automating mailbox creation and migration within a hybrid Exchange/O365 environment was figuring out when Dirsync had finished running.

By default, Dirsync runs x hours after the time the last cycle completes, which means that Dirsync never really runs on a fixed schedule. But, how does Dirsync know when the cycle completed?

Turns out, there’s a value in Get-MsolCompanyInformation called LastDirsyncTime. Get that value, store it in a variable, run Dirsync, then use a while loop to compare the value in your variable with the current value of LastDirSyncTime until the current value exceeds your variable value.

Here’s the code snippet, and the full function I use for O365 to On-Prem migration is below the cut.

$DirSyncTimeBefore = Get-MsolCompanyInformation | select LastDirSyncTime $dstimeb = $DirSyncTimeBefore.LastDirSyncTime Write-Output "Time before is $dstimeb"

$ScriptBlock = { Invoke-Command -ComputerName dirsyncserver.domain.com {C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe ` -psconsolefile "C:\Program Files\Windows Azure Active Directory Sync\DirSyncConfigShell.psc1" ` -command "Start-OnlineCoexistenceSync"} } while ($timetest -ne $True){ $DirsyncTimeNow = Get-MsolCompanyInformation | select LastDirSyncTime $dstimen = $DirsyncTimeNow.LastDirSyncTime $timetest = $DirsyncTimeNow.LastDirSyncTime –gt $DirSyncTimeBefore.LastDirSyncTime Write-Output "Time now is $dstimen" Start-Sleep(20)

Function Invoke-MailboxMigration { <# .SYNOPSIS Migrates a mailbox from O365 to On-prem. .DESCRIPTION Cmdlet prepares mailbox for migration, starts dirsync, then finishes migration after dirsync has finished. .EXAMPLE Invoke-MailboxMigration -Username meowth -GUID "0x000x00-y0yy-000y-0000-00000z0z00zz" #> [CmdletBinding(SupportsShouldProcess=$True,ConfirmImpact='Low')] param ( [Parameter(Mandatory=$True,ValueFromPipeline=$True,ValueFromPipelineByPropertyName=$True,Position=0,HelpMessage='Please enter a username')] [string]$Username, [Parameter(Mandatory=$True,ValueFromPipeline=$True,ValueFromPipelineByPropertyName=$True,Position=1,HelpMessage='Enter a GUID')] [string]$GUID, [Parameter(Mandatory=$True,ValueFromPipeline=$True,ValueFromPipelineByPropertyName=$True,Position=2,HelpMessage='Enter a database')] [string]$Database ) #region setup $EmailAddress = [string]::Concat($($Username),"@domain.mail.onmicrosoft.com") Enable-Remotemailbox $Username -remoteroutingaddress $EmailAddress Set-Remotemailbox $Username -ExchangeGUID $GUID Write-Output "Began migration process for $Username with remote routing address $EmailAddress and GUID $GUID" #endregion

#region Dirsync try{Get-MsolAccountSku -ErrorAction Stop } catch [Microsoft.Online.Administration.Automation.MicrosoftOnlineException] {"Not connected to MSOnline. Now connecting." $O365pw = ConvertTo-SecureString -AsPlainText -Force -String s3cretP@ssw0rd! $O365Cred = New-Object -TypeName System.Management.Automation.PSCredential -ArgumentList "[email protected]",$O365pw Connect-MsolService -Credential $O365Cred }

$DirSyncTimeBefore = Get-MsolCompanyInformation | select LastDirSyncTime $dstimeb = $DirSyncTimeBefore.LastDirSyncTime Write-Output "Time before is $dstimeb"

$ScriptBlock = { Invoke-Command -ComputerName dirsyncserver.domain.com {C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe ` -psconsolefile "C:\Program Files\Windows Azure Active Directory Sync\DirSyncConfigShell.psc1" ` -command "Start-OnlineCoexistenceSync"} }

while ($timetest -ne $True){ $DirsyncTimeNow = Get-MsolCompanyInformation | select LastDirSyncTime $dstimen = $DirsyncTimeNow.LastDirSyncTime $timetest = $DirsyncTimeNow.LastDirSyncTime –gt $DirSyncTimeBefore.LastDirSyncTime Write-Output "Time now is $dstimen" Start-Sleep(20) #sleep for 20 seconds } #endregion

#region mailboxMove $ExPW = ConvertTo-SecureString -AsPlainText -Force -String s3cretP@ssw0rd! $ExCred = New-Object -TypeName System.Management.Automation.PSCredential -ArgumentList "domain\exchangeAdmin",$ExPW New-MoveRequest -Outbound -RemoteTargetDatabase $Database -RemoteHostName mailserver.domain.com -RemoteCredential $ExCred -TargetDeliveryDomain domain.com -Identity [email protected] #endregion }

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