ZFS Internals
From the MANUAL page: The zdb command is used by support engineers to diagnose failures and gather statistics. Since the ZFS file system is always consistent on disk and is self-repairing, zdb should only be run under the direction by a support engineer.
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Thanks for the articles, they were informative.
Just wanted to point out the PDF is missing part 10 so I had to come over here to find it after reading the rest.
Thanks! I will try to update the ZFS Internals PDF version soon…
Thanks Edward!
Hello. Nice work.
I have a badly corrupted zpool, which I made worse by trying several rescue methods. Long story short, there is no importable (-D) pool even with -FX. I can locate the uberblocks (TXG) and operate on them via python script and there are a number of blocks remaining.
My Q: Can the pool be recovered even partially or at least can I get a dump of file names from the disk? Is there a way that ZDB can assist with this? Unfortunately testdisk won’t be of much use because sorting through all the files takes about a century as you know.