Hello
One of my servers hanged, got reset and cannot boot since that time. To check zpool, I've booted from mfsbsd and cannot understand a thing.
1. zpool import shows healthy RAIDZ of 4 disks, all disks online
2. zpool import -R /mnt ioffe, after some thinking, yields "cannot import 'ioffe': one or more devices are currently unavailable"
3. zdb -e ioffe coredumps when reading dataset ioffe/root/var
4. in Configuration for import section, zdb shows disk 0 "removed: 1", while the disk is not removed
5. zpool import -F -R /mnt ioffe yields "cannot import 'ioffe': I/O error. Destroy and re-create pool from a backup source"
6. smartctl does not show any errors, and attempt to dd if=/dev/ada0 of=/dev/null bs=100k count=100k (for all disks) does not show any problem
What happened? Can I do anything besides destroying pool? How do I prevent such a problem?...
One of my servers hanged, got reset and cannot boot since that time. To check zpool, I've booted from mfsbsd and cannot understand a thing.
1. zpool import shows healthy RAIDZ of 4 disks, all disks online
2. zpool import -R /mnt ioffe, after some thinking, yields "cannot import 'ioffe': one or more devices are currently unavailable"
3. zdb -e ioffe coredumps when reading dataset ioffe/root/var
4. in Configuration for import section, zdb shows disk 0 "removed: 1", while the disk is not removed
5. zpool import -F -R /mnt ioffe yields "cannot import 'ioffe': I/O error. Destroy and re-create pool from a backup source"
6. smartctl does not show any errors, and attempt to dd if=/dev/ada0 of=/dev/null bs=100k count=100k (for all disks) does not show any problem
What happened? Can I do anything besides destroying pool? How do I prevent such a problem?...