Gerardo,

First, an observation.  I noticed that you listed that
you were at TDP for Exchange 1.1.1.0.  You need to change
this as soon as possible.  If you are going to stay with
version 1, then you must be running 1.1.1.01.
The fixtest is available at the standard FTP site.
You must have this fix on to guarantee good backups.

Also, you could go to version 2 (just released in March)
and gain the benefits like full TSM policy management
and Exchange 2000 support.


Back to your question...

"Status: ACN4226E -- Exchange Error: A read verification error occurred."
normally means that your Exchange database is corrupted.
This in an error that the Exchange server returns as it reads each
and every page within your Exchange database.

This should have nothing to do with LAN Free vs. non-LAN Free backup.
To be sure, you can run the backup again non-LAN Free.
You will most likely see the same error.

Keep in mind, the Exchange server backup API has a built-in
function to make sure each page of your database is
good by checking it against a checksum written at the
beginning of the page.  If it finds a bad checksum, it
will stop the backup with the error you are seeing.
It won't let you back up a corrupt database.

You may need to investigate your standard procedures
for handling corrupted Exchange Server databases.

Thanks,

Del

----------------------------------------------------
Del Hoobler
Del Hoobler
IBM Corporation
hoobler AT us.ibm DOT com

"It's a beautiful day.  Don't let it get away."  -- Bono




                    Gerardo Zapata
                    <gerardo.zapat       To:     ADSM-L AT VM.MARIST DOT EDU
                    a AT USA DOT NET>           cc:
                    Sent by:             Subject:     TDP Exchange backup error
                    "ADSM: Dist
                    Stor Manager"
                    <ADSM-L AT VM DOT MAR
                    IST.EDU>


                    05/09/2001
                    04:50 PM
                    Please respond
                    to "ADSM: Dist
                    Stor Manager"





I'm trying to do a lanfree full backup of an Exchange database with TDP for
Exchange 1.1.1.0 to a TSM Server 4.1.3 (attached to a 3494 tape library
through the GUI). Everything seems to work ok but when the backup reaches
the
7 GB (more or less), the backup just gets interrupted and the following
information appears on the GUI screen:

Complete. 0 of 1 database objects backed up
See teh statusa column for more details.

The follewing info appears in the columns:
Database: Information Store
Backup type: Full
Exchange Server: MXMMEX01
Status: ACN4226E -- Exchange Error: A read verification error ocurred.

Thanks in advance

Gerardo Zapata
IT Specialist
Infrastructure & Systems Management
IBM Mexico
(525) 270 5889
e-mail: gzapata AT mx1.ibm DOT com
        gerardo.zapata AT usa DOT net


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