Exchange Powershell Administration Commands

Start all Exchange services after a problematic reboot

Get-Service *Exchange* -Exclude *POP*,*IMAP*,*Hyper-V* | Start-Service

After removing a node from a DAG, sometimes the cluster objects are still hanging around in server manager even though they are already decommissioned or deleted

cluster node SERVERNAME /forcecleanup

Uninstall Exchange on Windows Server Core

cd 'C:\Program Files\Microsoft\Exchange Server\V15\Bin\'
exsetupui.exe -mode:uninstall

Node complains that is still a member of a DAG during uninstall

Clear-ClusterNode HOSTNAME 

Database Management

Get-MailboxDatabaseCopyStatus * | ft -auto
Get-MailboxDatabaseCopyStatus * -Active | Select Name,Status,MailboxServer,ActivationPreference,ContentIndexState

Display current running exchange version on all servers:

Get-ExchangeServer|Format-List name, edition, admindisplayversion, serverrole, site

and source link for what different versions numbers are:

http://technet.microsoft.com/en-us/library/hh135098(v=exchg.150).aspx

Show all mailboxes and their current size and usage status:

Get-MailboxStatistics | where {$_.ObjectClass –eq “Mailbox”} | Sort-Object TotalItemSize –Descending | ft @{label=”User”;expression={$_.DisplayName}},@{label=”Total Size (MB)”;expression={$_.TotalItemSize.Value.ToMB()}},@{label=”Items”;expression={$_.ItemCount}},@{label=”Storage Limit”;expression={$_.StorageLimitStatus}} -auto

Or same thing, but Exchange 2019

Get-Mailbox -ResultSize Unlimited | Get-MailboxStatistics | Sort-Object TotalItemSize -Descending | Select-Object DisplayName,TotalItemSize