Corrupt or Damaged Data

• Problems starting MS Exchange services or accessing mailboxes?
• SQL restore files with an internal corruption error?
• Files resurrected using data recovery software are garbled and unusable?

Altirium know that your data is of no value unless it works. Recovering 90% of the data is not necessarily a good result if you cannot use the data.

MS Exchange services fail ZIP file won't open SQL database table is corrupt Documents files corrupted Oracle Exports are damaged

Checksum errors within data Page structure reported corrupt Errors from filesystem failure Unexpected data encountered File size too short

File read errors reported Partial data restored from tape

A Logical problem within a file is where the file or data can be read from the disk or backup tape but the information cannot be understood by the application that is trying to use it. For example you open a Word document you have been working on and instead of seeing document, MS Word display a 'File Conversion' screen with lot of squares in the preview screen.

A catastrophic failure such as the companies email server not restarting after a reboot can be caused by a relatively small amount of logical corruption. In many cases, an almost complete recovery can be achieved. If repairing the file is not possible Altirium's Recovery experts have the skill and capability to extract and return any usable data back to you in a format you can use.

Logical errors can occur if for example your computer system crashes or there are problems with the program that is using or creating the file or if errors are not handled correctly. Logical errors will generally only appear when you need to access that critical item of information again.

Many supplied repair tools will possibly return the file to a working state but you may lose a large amount of previously accessible data. We have had reports from customers who's email systems have shrunk from many gigabytes to just a few megabytes after repairing and de-fragmenting their email system in an attempt to make it functional again.

Physical errors such as bad sectors on a disk can also cause, otherwise perfectly good files from being opened and used.

Reverse engineering data is part of an Altirium data recovery engineer's daily work. Altirium believe in approaching the problem from the 'bottom-up'. By examining the data and working out a solution to the problem rather than running tools and hoping for the best.

Altirium develop solutions we do not rely on recovery tools developed by others to achieve the best results. Altirium can often achieve results where other recovery companies have tried and failed.