This script lists and gets the size of the Exchange databases

Script :


Reference
Get-MailboxDatabase
This cmdlet is available only in on-premises Exchange Server 2013.
Use the Get-MailboxDatabase cmdlet to retrieve one or more mailbox database objects from a server or organization.

 

Detailed Description

If you use the Get-MailboxDatabase cmdlet with no parameters, it retrieves information about all mailbox databases in the Exchange organization. If you use the Get-MailboxDatabase cmdlet with the Server parameter, it retrieves information about all mailbox databases on the server that you specify.
The following list describes the properties that are returned in the results.

  • Name Name of the database.
  • Server Server hosting the database.
  • Recovery Specifies whether the new database is designated as a recovery database.
  • ReplicationType Replication type of the database.

You need to be assigned permissions before you can run this cmdlet. Although all parameters for this cmdlet are listed in this topic, you may not have access to some parameters if they’re not included in the permissions assigned to you. To see what permissions you need, see the “Mailbox Database Permissions” section in the Recipients permissions topic.

 

Parameters

Parameter Required Type Description
Server Required Microsoft.Exchange.Configuration.Tasks.ServerIdParameter The Server parameter specifies the name of the server from which to retrieve mailbox database information. If you specify this parameter, the command retrieves information about all of the mailbox databases on the server that you specify.
DomainController Optional Microsoft.Exchange.Data.Fqdn The DomainController parameter specifies the fully qualified domain name (FQDN) of the domain controller that retrieves data from Active Directory.
DumpsterStatistics Optional System.Management.Automation.SwitchParameter The DumpsterStatistics switch specifies that transport dumpster statistics be returned with the database status.
Identity Optional Microsoft.Exchange.Configuration.Tasks.DatabaseIdParameter The Identity parameter specifies a mailbox database. You can use the following values:

  • GUID
  • Distinguished name (DN)
  • Database name

If you have multiple databases with the same name, the command retrieves all databases with the same name in the specified scope.

IncludePreExchange2013 Optional System.Management.Automation.SwitchParameter The IncludePreExchange2013 switch parameter specifies whether to return information about the mailbox databases that reside on computers running Microsoft Exchange Server 2013 and earlier versions of Exchange.
Status Optional System.Management.Automation.SwitchParameter The Status switch specifies whether to retrieve the available free space in the database root and information about the following attributes:

  • BackupInProgress
  • Mounted
  • OnlineMaintenanceInProgress

You don’t need to specify a value with this switch.

If you specify this switch, you should format the output in such a way that you can view the additional attributes, for example, pipe the output to the Format-Listcmdlet.

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