Exchange 2010 mailbox restore with DPM2012 error

Hi All,

We’re using DPM 2012 SP1 with rollup 3. (version 4.1.3333.0). I would like to recovery exchange 2010 mailbox database to RDB with DPM, but I always got the following error message.

„Description:       The recovery jobs for Exchange Mailbox Database xxxxx Mailboxes that started at Monday, January 28, 2013 1:57:10 PM, with the destination of exchange2010.domain.com, have completed. Most or all jobs failed to recover the requested data. (ID 3111)

                DPM encountered an error while performing an operation for D:\ExchangeStorage\ Mailboxes.edb on exchange2010.domain.com (ID 2033 Details: The process cannot access the file because it is being used by another process (0x80070020))”

What’s the problem? How do I know which process is using the database?

Thanks,