JBOB recovery

[algj1]

I have two disks:

SAMSUNG HD753LJ S1PWJDWS600450 750 GB
SAMSUNG HD203WI S1UYJ1BZ108016 2000 GB

These were in a NAS 323 D Link
The drives were made into a JBOB volume to produce a 2.75TB drive

Unfortunately the NAS no longer reads the 2.7TB volume

Fortunately the disks are not physically damaged. They have not been formatted. They have not been written onto since this problem began.

Should I run ZAR in data recovery mode, not raid mode, on each disk, to produce a log (extended with timestamps)?
I am currently doing this for the 2TB disk (awaiting log file)

Once run on both disks, can ZAR recover my files and combine the data?
Will the file structure remain intact?

Please help, thank you very much

[Alexey V. Gubin]

There is no good recovery for a JBOD. If you do two separate passes on two disks, then combine the results manually, you can get acceptable quality, because 323 D-Link uses EXT filesystem internally. The trick of scanning two separate drives often works on EXT, and sometimes works on XFS filesystem.

[algj1]

Thank you Alexey

How do I go about combining the results manually

I have a log file of the 2TB disk

[Alexey V. Gubin]

Do you have a reasonably good file tree on the first disk? If yes, just copy the files. Then, repeat with the second disk. Then, combine the copied data files, not the log files.

[algj1]

Ok I understand, thanks

What settings would I use with ZAR to carry out this procedure, eg, two passes over two drives? I can connect the two drives to my computer at the same time if that helps

Thank you

[Alexey V. Gubin]

Connect first drive, scan. Copy the files. Connect second drive, scan it. Copy again. Then, merge the files.

This would only work if the directory structure is recovered in more-or-less usable condition. You can check this with the demo version.