I recently had a hard system lockup at 15% of a raid5->6 reshape. I specified the backup file for the reshape to: /tmp/raid-backup.bak I did not know ubuntu deletes this folder on reboot. I have taken the drive with the deleted file to data recovery experts to try a last resort of scavenging the drive for the deleted backup file. They are asking for a sample of the file to aid in looking for it. I don't have the hardware to recreate the situation with 6 additional 2tb drives to set up, do a reshape, stop it and grab the backup file as a sample, plus I assume most of the file is just blobs of arbitrary data that might not be helpful. Instead I am hoping to find some information on the structure or identifying characteristics of the backup files but there is no documentation which I can find about this specifically. Can anyone provide me with any information about the structure or any identifying characteristics of the backup file? Or perhaps refer me to someone who can? -- To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
