What is and what should never be - corrupt tib file

Thread needs solution
truwrikodrorowrelupicugojestutroclulachosaswunuhospikigawakijosaswenomaruclojeueclikaspedrubewidebrisubrohutrurifruuagothunugekedrumucisiuobrobrecrupeslapuswosluprothethibakaslechurathikucli
Beginner
Posts: 1
Comments: 0

I used a RAID-5 volume to store data. I used Acronis True Image home to create backups of this volume. As there was only room for one backup on the backup device I thought it would be nearly impossible that the RAID-5 volume crashes and the backup file is corrupted.
Unfortunately, exactly this happened. Two harddisks crashed during backup, leaving the RAID volume unusable as well as the backup file. The older file was overwritten by the corrupt one.
Well, is there any possibility to gain access to the corrupted tib file? My hope is to at least have some single files recovered.
Thanks in advance!
Roland

Sun, 04/11/2010 - 21:17
0 Users found this helpful
truwrikodrorowrelupicugojestutroclulachosaswunuhospikigawakijosaswenomaruclojeueclikaspedrubewidebrisubrohutrurifruuagothunugekedrumucisiuobrobrecrupeslapuswosluprothethibakaslechurathikucli
Frequent Poster
Posts: 2
Comments: 570

If the archive file is complete you may have a chance.
When TI makes an image archive it writes into the archive a checksum for each 256K bytes of data amounting to 4000 checksums/GB. If an image is to be restored the archive is read and the checksums recreated and compared. Every one must agree perfectly or the archive is declared corrupt and the image restoration is aborted. I assume the checksum process is similar for a data (files and folders) backup.

It is also known that an archive that fails the above test can have files extracted from it in many cases. I assume that as long as the checksums agree properly for the blocks of data comprising the file then TI is happy and doesn't care about the others.

So you can try to explore the archive with Windows Explorer or mount it with the TI Mount command which makes the archive look like a disk. The TI archive does contain metadata describing the structure of the archive and if this is bad then it is unlikely you will have any luck.

I am not aware of any commercial data recovey programs for TI archives.

Sun, 04/11/2010 - 23:14