Hello,
I'm trying to rebuild a raid1 array by adding the replacement disk (sda)
to the old one (sdf). I zero'd the new disk (sda) and created the
partition table corresponding to the existing one.
I adapted my raidtab to the new drive node (changed due to other disk
replacement) and now I'm trying to add the new disk, but the raid 1 is
not rebuilding, the newly added disk is marked as U(p) in the mdstat output.
Here's what I do step by step (mdstat output reduced to one raid array,
but the problem exists with every partition used as a raid 1):
# cat /proc/mdstat
md1 : active raid1 sdf1[1]
112728000 blocks [2/1] [_U]
# raidhotadd /dev/md1 /dev/sda1 && cat /proc/mdstat
md1 : active raid1 sda1[1] sdf1[0]
112728000 blocks [2/2] [UU]
Thats it, no resync, nothing. When I do a fsck on the md1 there are
errors en masse. raidtools don't even seem to touch sda1, since when I
create a filesystem with content on it, I can mount it after adding it
to the raid.
Any ideas why this is and how to fix it?
Thanks in advance & ciao,
elm
Here is the entry in the syslog:
==
Nov 15 09:34:46 server md: bind<sda1>
Nov 15 09:34:46 server RAID1 conf printout:
Nov 15 09:34:46 server --- wd:1 rd:2
Nov 15 09:34:46 server disk 0, wo:1, o:1, dev:sda1
Nov 15 09:34:46 server disk 1, wo:0, o:1, dev:sdf1
Nov 15 09:34:46 server md: syncing RAID array md2
Nov 15 09:34:46 server md: minimum _guaranteed_ reconstruction speed:
1000 KB/sec/disc.
Nov 15 09:34:46 server md: using maximum available idle IO bandwidth
(but not more than 200000 KB/sec) for reconstruction.
Nov 15 09:34:46 server md: using 128k window, over a total of 112728000
blocks.
Nov 15 09:34:46 server md: md1: sync done.
Nov 15 09:34:46 server RAID1 conf printout:
Nov 15 09:34:46 server --- wd:2 rd:2
Nov 15 09:34:46 server disk 0, wo:0, o:1, dev:sda1
Nov 15 09:34:46 server disk 1, wo:0, o:1, dev:sdf1
==
Here is the raidtab:
==
raiddev /dev/md1
raid-level 1
nr-raid-disks 2
nr-spare-disks 0
persistent-superblock 1
chunk-size 8k
device /dev/sda1
raid-disk 0
device /dev/sdf1
raid-disk 1
==
--
"Religion und Familie sind die beiden größten Feinde des Fortschritts."
(André Gide (1869 - 1951), französischer Schriftsteller)
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