[x]
Posted via EE Mobile

Search, ask, and monitor your questions on the go with EE Mobile. Visit Experts Exchange from your mobile device and never be out of touch again.

Question
[x]
Attachment Details
[x]
The Solution Rating System

With so many solutions, how can you tell which solutions are most likely to help you and which ones are not? To provide you with a tool to use, we rate our solutions based on various elements that most accurately determine if a solution is a quality solution. To explain what factors affect the solution rating, here are the elements we take into consideration when formulating our solution rating.

  • The Grade of the Solution
  • The Zone Rank of the Expert Providing the Solution
  • The Number of Author and Expert Comments
  • The Number of Experts Contributing
  • The Feedback of the Community

Your Input Matters
Because of the way the system is set up, the most important variable in this equation is you. As a member of Experts Exchange, you are able to cast your vote on the quality of the solutions in regard to how complete, accurate, helpful and easy to understand each solution is. When you provide your feedback, each rating is adjusted accordingly. So, if you see a solution that has a poor rating that you think is a good solution, let us know by rating it. As you do, the rating will be adjusted and will become more accurate for other members of our site.

If you have any suggestions that you would like to make for our rating system, please ask a question in the Suggestions Zone of Community Support.

Thank you!

8.6

Corrupt Exchange backup

Asked by nwru in Exchange Email Server

Tags: backup, recovery, exchange

I use NTBackup / Windows Backup to backup my Exchange 2000 server's information stores and recently the drive containing them died.  The drives that contain the Windows 2000/Exchange installation and archive logs are fine.  When I tried to restore from the backup file (.bkf) on the same server with a new hard drive, I get the message "The backup file is unusable.  You must erase it, or choose another file." and cannot continue.

The Microsoft Support article (http://support.microsoft.com/?kbid=269826) for this error is of no help.  It basically says to delete your corrupted backup and "too bad" and "hahaha sucker, you should have had 'verify' turned on."  Yeah, yeah, I know...now that it's too late.

All attempts to repair the .bkf file have failed.  A quick googling revealed that there are several utilities that can repair suck files.  I have tried four (4!) repair utilities, including "Advanced BKF Repair", "Repair My Backup", "BKFRecovery", and "Nucleus Kernel BKF", and they all have failed.  They'll finish and either report that there are no files found.  They'll each run for at least an hour or so, so I know they're doing something.  I personally don't think that any of them are capable of handling .bkf files with Exchange information in them, only normal files and directories.  I don't think any of them actually state that they can do Exchange backups.

If I hex edit the .bkf file, I can see some email information in there.  Email addresses and subjects are easy to pick out in all the gibberish.  I even see lots of strings that end with .eml, leading me to believe that there are just a ton of .eml files in these backups.  If only I could extract them...

I have sent the physical drive out for professional data recovery as recommended by others on EE (http://www.experts-exchange.com/Storage/Q_21783520.html), but if they can't help me, I better be able to make something of this backup file.  The CEO of my company is really on my back about retrieving some irreplaceable emails and contacts.

So my question is: Is there any way to salvage Exchange information from a "corrupt" .bkf file or are there any utilities that can actually repair my file?

One more thing.  I have archive logs going back 50 days.  If can't get back the original information store, is there any way to play back the archive logs on an empty store to get _something_ back?  I have tried remounting one of the offline stores and it automatically runs through all the archive logs (as shown in the application log), but after an hour, no .edb/.stm files are created and an nondescript error message is displayed.

Thanks in advance!
[+][-]03/23/06 12:04 PM, ID: 16273664Author Comment

Often, when Experts are collaborating with members who have asked questions, they will request additional information about the problem. Askers respond with an author comment like this one.

Start your 30-day free trial to view this Author Comment or ask the Experts your question.

 
[+][-]03/23/06 12:57 PM, ID: 16274310Accepted Solution

View this solution now by starting your 30-day free trial. Setting up your free trial is quick, easy, and secure. We will return you to this solution, unlocked, when you're done.

About this solution

Zone: Exchange Email Server
Tags: backup, recovery, exchange
Sign Up Now!
Solution Provided By: Vahik
Participating Experts: 2
Solution Grade: A
 
[+][-]03/23/06 01:22 PM, ID: 16274651Author Comment

Often, when Experts are collaborating with members who have asked questions, they will request additional information about the problem. Askers respond with an author comment like this one.

Start your 30-day free trial to view this Author Comment or ask the Experts your question.

 
[+][-]03/26/06 01:13 PM, ID: 16295704Author Comment

Often, when Experts are collaborating with members who have asked questions, they will request additional information about the problem. Askers respond with an author comment like this one.

Start your 30-day free trial to view this Author Comment or ask the Experts your question.

 
[+][-]03/26/06 01:23 PM, ID: 16295760Author Comment

Often, when Experts are collaborating with members who have asked questions, they will request additional information about the problem. Askers respond with an author comment like this one.

Start your 30-day free trial to view this Author Comment or ask the Experts your question.

 
[+][-]03/26/06 06:29 PM, ID: 16297097Author Comment

Often, when Experts are collaborating with members who have asked questions, they will request additional information about the problem. Askers respond with an author comment like this one.

Start your 30-day free trial to view this Author Comment or ask the Experts your question.

 
[+][-]03/26/06 08:16 PM, ID: 16297483Expert Comment

At Experts Exchange, members can ask their questions to thousands of technology professionals, also known as Experts. Experts compete and collaborate to answer those questions by leaving comments like this one.

Start your 30-day free trial to view this Expert Comment or ask the Experts your question.

 
[+][-]03/26/06 08:32 PM, ID: 16297536Author Comment

Often, when Experts are collaborating with members who have asked questions, they will request additional information about the problem. Askers respond with an author comment like this one.

Start your 30-day free trial to view this Author Comment or ask the Experts your question.

 
[+][-]03/26/06 09:31 PM, ID: 16297798Author Comment

Often, when Experts are collaborating with members who have asked questions, they will request additional information about the problem. Askers respond with an author comment like this one.

Start your 30-day free trial to view this Author Comment or ask the Experts your question.

 
[+][-]04/01/06 05:25 PM, ID: 16352681Author Comment

Often, when Experts are collaborating with members who have asked questions, they will request additional information about the problem. Askers respond with an author comment like this one.

Start your 30-day free trial to view this Author Comment or ask the Experts your question.

 
 
Loading Advertisement...
20091111-EE-VQP-89