zfs discuss - Jan 2013 - Recovering lost files - hunting for MOS on the disk

A client accidentally removed important files that had changed significantly
after the last snapshot and backup.

A disk was pulled out of the mirror asap, and part of the data could be accessed
by rolling back to the oldest uberblock available, but it was too late for some
of the files.

Are there tools to find missing files past the last few txg or does it sound
reasonable that I scan the disk for a bit older objset_phys_t metadnode to find
a MOS and try to manually make an uberblock that points to it?

Anybody want to have a go building a tool? I understood that the data is worth
something. :)

- the pool wasn''t full and not much has happened since the data was
removed
- compression=yes
- older version of the data is referenced by a snapshot

-- 
Juho Juopperi
juho.juopperi at remod.fi
+358405422321