Possible Exchange Database Corruption   

I have an Exchange 2003 SP2 server and the other nigh the backup started 
failing (Backup Exec) stating:
Access denied to database Mailbox Store (Serv_Name)
Database or database element is corrupt

I am trying to determine if it is really corrupt or not and if so how to fix 
it

One note, I am in the process of starting to migrate this server to a new 
Exchange 2003 server.  I was going to move the mailboxes tonight, but was 
concerned now that I dont have a good backup and not sure if there is 
corruption.
If I start to move them and there is an issue, I would have to go back 3 
days and I wasn't sure of the ramifications of restoring the original 
database once some of the mailboxes had been moved, then it would be 
restoring mailboxes that now exist on another server??
Thanks
Chris W

date: Fri, 4 Apr 2008 11:46:00 -0700   author:   Chris Wheeler

Re: Possible Exchange Database Corruption   

On Fri, 4 Apr 2008 11:46:00 -0700, Chris Wheeler
 wrote:

>I have an Exchange 2003 SP2 server and the other nigh the backup started 
>failing (Backup Exec) stating:
>Access denied to database Mailbox Store (Serv_Name)
>Database or database element is corrupt
>
>I am trying to determine if it is really corrupt or not and if so how to fix 
>it
>
>One note, I am in the process of starting to migrate this server to a new 
>Exchange 2003 server.  I was going to move the mailboxes tonight, but was 
>concerned now that I dont have a good backup and not sure if there is 
>corruption.
>If I start to move them and there is an issue, I would have to go back 3 
>days and I wasn't sure of the ramifications of restoring the original 
>database once some of the mailboxes had been moved, then it would be 
>restoring mailboxes that now exist on another server??
>Thanks
>Chris W
If you move someone and then restore the entire store into the RSG
(only do it into the RSG) then you'll be fine. Only attempt to restore
(backfill)  mailboxes you haven't moved.

date: Sat, 05 Apr 2008 19:02:00 -0400   author:   Mark Arnold [MVP]

Re: Possible Exchange Database Corruption   

They had wanted to try and fix this prior to migrating the mailboxes
They have a 17GB store, edb about 11.6GB and the STM about 6.6 GB
A Windows NT backup also fails, looks like an issue maybe in the STM
The system is up and running at the moment
I wanted to review what I should run, was thinking the eseutil /p eseutil /d 
and isinteg -fix?
They do not do circular logging so they have logs back til the last good 
backup last week
Would I make a copy of the entire MDB folder (databases and logs) prior to 
running the utilities? Is this sufficient to get back to where they are if 
the utils have issues?
Would I also need to exmerge mailboxes in case of issues?
Any idea of the average amount of time to run these utilities against a 
database this size?
Thanks
Chris W

"Mark Arnold [MVP]" wrote:

> On Fri, 4 Apr 2008 11:46:00 -0700, Chris Wheeler
>  wrote:
> 
> >I have an Exchange 2003 SP2 server and the other nigh the backup started 
> >failing (Backup Exec) stating:
> >Access denied to database Mailbox Store (Serv_Name)
> >Database or database element is corrupt
> >
> >I am trying to determine if it is really corrupt or not and if so how to fix 
> >it
> >
> >One note, I am in the process of starting to migrate this server to a new 
> >Exchange 2003 server.  I was going to move the mailboxes tonight, but was 
> >concerned now that I dont have a good backup and not sure if there is 
> >corruption.
> >If I start to move them and there is an issue, I would have to go back 3 
> >days and I wasn't sure of the ramifications of restoring the original 
> >database once some of the mailboxes had been moved, then it would be 
> >restoring mailboxes that now exist on another server??
> >Thanks
> >Chris W
> If you move someone and then restore the entire store into the RSG
> (only do it into the RSG) then you'll be fine. Only attempt to restore
> (backfill)  mailboxes you haven't moved.
>

date: Mon, 7 Apr 2008 05:46:01 -0700   author:   Chris Wheeler