TotalDeletedItemSize - not decreasing -

Hi,

Exchange 2010 sp2 RU2 - I have 3 meeting room resource mailboxes

meeting1 room contains TotalDeletedItemSize 5GB

meeting2 room contains TotalDeletedItemSize 8GB

meeting3 room contains TotalDeletedItemSize 2GB

I am in the process of moving these resource room mailboxes  to another database and I don't want to bring this "TotalDeletedItemSize" xGB of data over to the new database.

I ran the following cmdlet below and the size only dropped a few items, and less than 10MB on each resource mailbox as stated above.

what am I doing wrong, and how do I deleted this items. Are there any tools that I may use or recommended. Appreciate any feedback!

JOe

[PS] C:\Windows\system32>search-mailbox -Identity meeting1  -SearchDumpsterOnly -DeleteContent

Confirm
Deleting content from mailboxes meeting1
[Y] Yes  [A] Yes to All  [N] No  [L] No to All  [?] Help (default is "Y"):


RunspaceId       : 4299e42e-284d-4507-ba9f-ce02588123e5
Identity         : localdomain.com/valee/Resources/meeting1
TargetMailbox    :
TargetPSTFile    :
Success          : True
TargetFolder     :
ResultItemsCount : 96
ResultItemsSize  : 4.575 MB (4,796,809 bytes)

[PS] C:\Windows\system32>Get-MailboxStatistics -Identity meeting1 | fl


RunspaceId              : 4299e42e-284d-4507-ba9f-ce02588123e5
AssociatedItemCount     : 29
DeletedItemCount        : 517274
DisconnectDate          :
DisconnectReason        :
DisplayName             : meeting1
ItemCount               : 7290
LastLoggedOnUserAccount : LOCALDOMAIN\sper
LastLogoffTime          : 8/4/2012 11:19:34 PM
LastLogonTime           : 8/4/2012 8:11:55 PM
LegacyDN                : /O=LOCALDOMAIN/OU=FIRST ADMINISTRATIVE GROUP/CN=RECIPIENTS/CN=MEETING1
MailboxGuid             : 8b98f413-786d-4c4a-86d9-910507fedb95
ObjectClass             : Mailbox, UserDisabled
StorageLimitStatus      : NoChecking
TotalDeletedItemSize    : 6.732 GB (7,228,312,153 bytes)
TotalItemSize           : 303.9 MB (318,685,380 bytes)