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Exchange backup error

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by suzanne

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I am running Exchange 5.5 on an NT 4 server, using ArcservIT 6.61 for backups. All have the latest service packs installed.
When I did the latest service pack install it wouldn't replace the file "emsui32.dll" because it was in use. I stopped all services I could see that might impact on this file to no avail. I can find no hint on Microsoft as to what this file is for, but Exchange still runs ok.
However, when I do a backup of the Exchange Brick level it stops at about 20% into the database with no obvious error message at that point. For a varying number of mailboxes beforehand I get the following error:
"Failed to read from database DBNAM = \individual Mailboxes\username\foldername, EC = EXCH Exchange Agent -- (402) "Exchange system error"." Not all malboxes get the error, just some.
The backup doesn't stop on the same mailbox each time, but at the same percentage point into the database.
I have looked on the Microsoft Support site and found no entries with this error (surprise, surprise!).
I have run eseutil and checked the integrity of the database, and done an offline defragment. No errors were found.
Does anyone have any ideas as to what is causing my problems?

Many thanks in anticipation.

3 replies

by leo.valmores

I have had similar error message from Arcserve using Exchange Agent. In my case, ArcServe will not BUP a mailbox folder (i.e. INBOX, SENT, or any folder under the User's mailbox; with error message saying can't read database (E8602) or Read/Write error in named pipes, etc. This occurs when a user "overfills" any of his folder beyond 250-300 mail items. If the user does "file / items housecleaning" on each of his folder, the error wont show up and all subfolders are backup.

Another possibility is the fact that any of your mailbox user can create a public folder. In doing so, the DBagent of ArcServe loses its rights to access to that Public folder. Even if you are the Admin, you wont know when and if a user creates his own public folder!!!

Check this: www.support.cai.com/techbases/asnt/16119.html

It precisely describes your problem and the resolution.

Cheers and Good Luck

by suzanne

Close,but didn't help. One of the email boxes I got this error with was my own, I checked and I don't have more than 250 emails in any folder. I tend to delete madly on a regular basis.

Also, I checked with some of the users about public foldersand none of them knew how to do that.

nonetheless very interesting as I had got this error once in the past but I got side-tracked before I was able to find out what it meant.

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