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Top of information store items are corrupt

Hello.  I am having issues with a customer and their Exchange.  Recently, due to my predessesor, their Exchange partition on the server keeps filling up due to a lack of space.  I am currently in the process of correcting that with larger HDD's moving the databases, but that isn't the current issue.

The issue I have is since the Exchange partition filled up one day a week or so ago all of their backups are reporting as failed due to there being "corrupt" emails in the top of the information store.  The error looks like this:

Backup - C:
Unable to open the item C:\WINDOWS\SoftwareDistribution\DataStore\DataStore.edb - skipped.
Unable to open the item C:\WINDOWS\SoftwareDistribution\DataStore\Logs\edb.log - skipped.
Unable to open the item C:\WINDOWS\SoftwareDistribution\DataStore\Logs\tmp.edb - skipped.
Unable to open the item C:\WINDOWS\system32\wins\winstmp.mdb - skipped.


Backup - \\SERVER\Microsoft Exchange Mailboxes
R000087573a249e272dcd002e2393f4b3c3a08b000021002e2393f4b3c3a08b0008df00Undeliverable: Delivery Status Notification (Failure)" is a corrupt file.&Inbox&Top of Information Store&WARNING: "\\SERVER\Microsoft Exchange Mailboxes\Administrator [administrator]
This file cannot verify.


This happens for around 35 or so of these items and they are in different mailboxes, not just one user.  I have since gotten them more free space on their Exchange parition due to archiving of mail and an offline defrag, but these errors keep happening.  Now, in the past maybe one time a week or so I would get the same error for different items but the next day it was gone so I thought nothing of it.   I did do a search online and came up with a few possible solution (most of what I read people blamed the backup media) but I wanted to run this by the EE community and see if I could get a good solution.  :)

Here is the specs:
Server 2003 SBS
Veritas 9.1 (backups up to external HDD's nightly with both diff and full failing)
An example of the error you can see above.

Thanks for any help with this, I really do appreciate it.
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artemisit
Asked:
artemisit
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2 Solutions
 
mickeyfanCommented:
Use ESEUTIL to repair your database.

http://technet.microsoft.com/en-us/library/aa998249.aspx

You have to understand that they will most likely lose some messages in the process.
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artemisitAuthor Commented:
Is there any way to know how much they will lose or basically do I just tell them in the process of this some email may be lost and there isn't a way to determine how much or if any?
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mickeyfanCommented:
There isn't anyway at all to determine what and how much will be lost.
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MesthaCommented:
You are doing mailbox backup - basically Brick Level Backup. Every time I see that kind of backup done it reports "corrupt" items. It doesn't mean the item is corrupt at all, it just means that Backup Exec cannot read it. A brick level backup isn't a valid backup of Exchange anyway - you need to do an information store backup. If you are doing an information store backup as well, then you are duplicating the content.

Unless you stop all services you will always get file in use failures on Windows content - the ones in Software Distribution are connected to Automatic Updates, so can be ignored.

Simon.
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artemisitAuthor Commented:
I just verified in the selections that I am backing up the information store, so I can essentially uncheck the Microsoft Exchange Malboxes branch and then be confident that by backing up the store the mailboxes are being backed up as well?

Also I read a response elsewhere online that suggested that under the Exchange properties for the job I I put a check into the box for "Enable single instance backup for message attachments.  (for mailbox and public folder backups only)"  What exactly would that accomplish, if anything?
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MesthaCommented:
If you disable mailbox and public folder backup, then that option has no effect. For a valid backup of Exchange, which will flush the transaction logs out, then you just need to choose the Information Store option - nothing else.

Simon.
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artemisitAuthor Commented:
I managed to get this fixed by actually opening each users mailbox who was having trouble and manually finding and deleting all of these items.  
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