At the moment I am feverishly seeking advice for how to fix a broken ZFS raidz2 I have (using FreeBSD 8.2-STABLE).
This is the current status: $ zpool status pool: tank state: FAULTED status: One or more devices could not be opened. There are insufficient replicas for the pool to continue functioning. action: Attach the missing device and online it using 'zpool online'. see: http://www.sun.com/msg/ZFS-8000-3C scan: scrub repaired 0 in 49h3m with 2 errors on Fri Jan 20 15:10:35 2012 config: NAME STATE READ WRITE CKSUM tank FAULTED 0 0 2 raidz2-0 DEGRADED 0 0 8 da0 ONLINE 0 0 0 da1 ONLINE 0 0 0 da2 ONLINE 0 0 0 da3 ONLINE 0 0 0 3758301462980058947 UNAVAIL 0 0 0 was /dev/da4 da5 ONLINE 0 0 0 The strange thing is that the pool is FAULTED while its part is merely DEGRADED. da4 failed reccently and was replaced with a new disk, but no resilvering is taking place. I've already tried lots of things with this, including exporting and then "zpool import -nFX tank". (I only got it back-imported with "zpool import -V tank). The -nFX ("extreme rewind") option gives no output, but there is a lot of I/O activity going on, as if it is rewinding forever, or in a loop, or something like that. One thing that may, or may not, complicate things is the following. Already quite a while ago there suddenly was a directory that was so corrupted that zfs reported I/O errors for various files in it. I could not even remove them; in the end I moved the other files to a new directory and put the original directory to the side, and made it mode 000. (If rewinding wants to go back to before this happened, I can understand that this takes a while, but I left it running overnight and it didn't make visible progress) zdb and various other commands complain about the pool not being available, or I/O errors. For instance: fourquid.1:~$ sudo zpool clear -nF tank fourquid.1:~$ sudo zpool clear -F tank cannot clear errors for tank: I/O error fourquid.1:~$ sudo zpool clear -nFX tank (no output, uses some cpu, some I/O) zdb -v ok zdb -v -c tank zdb: can't open 'tank': input/output error zdb -v -l /dev/da ok zdb -v -u tank zdb: can't open 'tank': Input/output error zdb -v -l -u /dev/da ok zdb -v -m tank zdb: can't open 'tank': Input/output error zdb -v -m -X tank no output, uses cpu and I/O zdb -v -i tank zdb: can't open 'tank': Input/output error zdb -v -i -F tank zdb: can't open 'tank': Input/output error zdb -v -i -X tank no output, uses cpu and I/O Are there any hints you can give me? I have full FreeBSD source online so I can modify some tools, if needed. Thanks in advance, -Olaf. -- Pipe rene = new PipePicture(); assert(Not rene.GetType().Equals(Pipe)); _______________________________________________ zfs-discuss mailing list firstname.lastname@example.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss