diff options
| author | madduck <madduck@3cfab66f-1918-0410-86b3-c06b76f9a464> | 2006-10-10 16:38:37 +0000 |
|---|---|---|
| committer | madduck <madduck@3cfab66f-1918-0410-86b3-c06b76f9a464> | 2006-10-10 16:38:37 +0000 |
| commit | 5615d1bb18684ef4f899e06a4139d39565092167 (patch) | |
| tree | ebe6e83499a87f8795970432fd5a9fd07e9cd255 /debian/FAQ | |
| parent | 37d00a5677085e0796b9f7a3750667e5373c361a (diff) | |
docs updates
Diffstat (limited to 'debian/FAQ')
| -rw-r--r-- | debian/FAQ | 26 |
1 files changed, 24 insertions, 2 deletions
@@ -229,8 +229,6 @@ Also see /usr/share/doc/mdadm/README.recipes.gz If you want/must used LVM or RAID0, put it on RAID1 arrays (RAID10/RAID1+0, or LVM on RAID1). - -- martin f. krafft <madduck@debian.org> Fri, 06 Oct 2006 15:39:58 +0200 - 10. Can I cancel a running array check (checkarray)? ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ See the -x option in the `checkarray --help` output. @@ -257,4 +255,28 @@ Also see /usr/share/doc/mdadm/README.recipes.gz - DEVICE partitions + DEVICE /dev/hd[ab]* /dev/hdc[123] +12. mdadm -E / mkconf report different arrays with the same device + name / minor number. What gives? +~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + In almost all cases, mdadm updates the super-minor field in an array's + superblock when assembling the array. It does *not* do this for RAID0 + arrays. Thus, you may end up seeing something like this when you run + mdadm -E or mkconf: + + ARRAY /dev/md0 level=raid0 num-devices=2 UUID=abcd... + ARRAY /dev/md0 level=raid1 num-devices=2 UUID=dcba... + + Note how the two arrays have different UUIDs but both appear as /dev/md0. + + The solution in this case is to explicitly tell mdadm to update the + superblock of the RAID0 array. Assuming that the RAID0 array in the above + example should really be /dev/md1: + + mdadm --stop /dev/md1 + mdadm --assemble --update=super-minor --uuid=abcd... /dev/md1 + + See also http://bugs.debian.org/386315 and recipe #12 in README.recipes . + + -- martin f. krafft <madduck@debian.org> Fri, 06 Oct 2006 15:39:58 +0200 + $Id$ |