If you found a file specifically named jbod repair tools.exe on a forum, file-hosting site, or torrent, you should exercise extreme caution for two reasons:

Assume you have 3 disks (old order: Disk1, Disk2, Disk3) that now appear as "unallocated" in Windows Disk Management.

Use ddrescue (Linux) or HDD Raw Copy Tool (Windows) to create sector-by-sector images of each JBOD member.

If you’ve ever had a multi-disk JBOD (Just a Bunch of Disks) span fail because of a corrupted partition table, accidental reformat, or broken concatenation order — you know the pain. Traditional recovery tools expect RAID metadata or standard single-disk layouts.

That’s why I built jbod repair tools.exe — a free (and safe) Windows command-line tool to diagnose and repair non-RAID spanned JBOD volumes.

The method of repair depends entirely on the hardware holding the JBOD.