"Cmdlet failed" Event Errors are generated on the Exchange Server during Exchange 2010 backups using NetBackup.

Problem

During the backup of Exchange 2010 using NetBackup "Cmdlet failed" Event Errors are generated on the Exchange Server in "Event Viewer >> Applications and Services logs >> MSExchange Management".

Error Message

 Following event errors are generated:

 Log Name:         MSExchange Management
Source:                 MSExchange CmdletLogs
Date:                     xx/xx/xxxx xx:xx:xx
Event ID:             6
Task Category:  General
Level:                    Error
Keywords:          Classic
User:                     N/A
Computer:         SERVERNAME
Description:
Cmdlet failed. Cmdlet Get-MailboxDatabaseCopyStatus, parameters {Identity=MAILBOX DATABASE\*}.
Event Xml:

The description part of the above event error will vary according to the database as shown below:

Cmdlet failed. Cmdlet Get-PublicFolderDatabase, parameters {Identity=Mailbox Database 0815803670}.
Cmdlet failed. Cmdlet Get-MailboxDatabaseCopyStatus, parameters {Identity=Public Folder database\*, Active=True}.
Cmdlet failed. Cmdlet Get-PublicFolderDatabase, parameters {Identity=Mailbox Database 1127421131, Status=True}.
Cmdlet failed. Cmdlet Get-MailboxDatabaseCopyStatus, parameters {Identity=Mailbox Database 1127421131\*, Active=True}.
 

Cause

During the backups of Exchange 2010, NetBackup queries the Exchange database with two commands - "Get-MailboxDatabaseCopyStatus" and "Get-PublicFolderDatabase".

So if "Get-MailboxDatabaseCopyStatus" query runs against the Public folder database or "Get-PublicFolderDatabase" query against the Mailbox database then these event errors are generated as the Cmdlet failed.

Solution

These event errors can be safely ignored as this will not affect the backups or restores of Exchange 2010.