What to do when PST migration fails

Last weekend I scheduled a PST migration using the collector and migrator tasks. Though 80% was succesful there were a few PST's that couldn't be migrated.

 

I rescheduled a new migrator task, but the log doesn't show wether it retried to migratie the PST's that are still in the PSTholding folder.

 

What do I need to to to force a retry of the migration? Empty the PSTholding folder, and schedule a new collector an migrator task?

 

Errors logged were:

Job failed: PST migration of \\ITS001SRV002\F$\Userdata\COENZ\outlook\Archief 2005.pst: Unspecified error. Please check the event log.

Event Type: Error
Event Source: Enterprise Vault
Event Category: Migrator Server
Event ID: 6696
Date:  6/16/2007
Time:  12:00:37 AM
User:  N/A
Computer: ITS001SRV018
Description:
Exchange Server mailbox access error occurred
 
Exchange Server:  ITS300SRV405
Exchange Privileged Mailbox:   EnterpriseVault(ITS300SRV405)
Mailbox DN:   /o=VendexKBB/ou=VendexKBB-ITS/cn=Recipients/cn=Zwarts.C
Reference: PI/SC

For more information, see Help and Support Center at http://evevent.veritas.com/rosetta/showevent.asp
Data:
0000: 3c 30 78 38 30 30 34 30   <0x80040
0008: 31 30 39 3e               109>   

 

** 6/16/2007 2:01:35 AM Migration of PST \\ITS001SRV002\F$\Userdata\GRADA\outlook\outlook.pst exception: Failed to read PST Policy record for Mailbox id: 153853FCBE031AC40A06FB3222103AA7D1n10000evsite01.its.retail.tc Error: Exception from HRESULT: 0x80005000. **

But nothing is logged in the eventvwr.