Microsoft Exchange consistency / integrity check

We are trying to check consistency on our Microsoft Exchange server, due to an issue we got with BackupAssist software when running a full system "base metal" backup (debug messages = System.ApplicationException: Could not load summary for execution key 2.1) and Outlook clients would run slow during first hour of backup in progress.

BackupAssist had us use the Mailbox Repair tool per the article http://technet.microsoft.com/en-us/library/ff625226.aspx

We ran the following command via Exchange power shell: New-MailboxRepairRequest –Database “Mailbox Database 1178128967” -CorruptionType SearchFolder,AggregateCounts,ProvisionedFolder,FolderView

The results are immediate:

RequestID               Mailbox                 ArchiveMailbox          Database                Server
---------               -------                 --------------          --------                ------
3d8c2051-765c-407a-9...                         False                   Mailbox Database 117... SF8EX2010.snet.cgh.org

We have over 1000 mailboxes, given that the above command only runs for a few seconds it cannot be doing anything significant.

Is the syntax of above command we used correct or do you suggest an alternative?