paco wrote: > hello, > > any known tool for advanced recovery of accidentally deleted files in raidz > (3 HDD) zfs filesystem (the raidz is not damaged nor corrupted)?? > > it seems to be some steps, but no ready-to-go tools: > > http://web.science.mq.edu.au/~rdale/teaching/itec810/WorkshopPapers/Li_Andrew_FinalWorkshopPaper.pdf > > http://mbruning.blogspot.com/2009/04/raidz-on-disk-format.html >
I have a simplified procedure for data recovery, but its based on recovery from a single disk pool... RAIDZ will complicate the procedure significantly. http://www.cuddletech.com/blog/pivot/entry.php?id=980 I'm not sure if your speaking in the abstract or if you are actually trying to recover data. Using zdb to recover data is really only an academic exercise, it should not be relied upon. If you want a way to hedge against needing to do so, leverage snapshots. But to specifically answer your question "any known tool for advanced recovery"... ZDB is the tool, there is no tool available which automates the process and I doubt there ever will be. The _right_ tool is a snapshot. benr.
