Hi,
when I try to (re)start a Raid0 device after a raidstop, I get the
following error message:
# mkraid --xxxxxxxxxxx /dev/md2
(xxxxxxxxxx is the option that you may not mention in emails :-)
DESTROYING the contents of /dev/md2 in 5 seconds, Ctrl-C if unsure!
handling MD device /dev/md2
analyzing super-block
disk 0: /dev/sda7, 1985520kB, raid superblock at 1985408kB
disk 1: /dev/sdb7, 1985520kB, raid superblock at 1985408kB
huh9???
bind<sda7,1>
nonpersistent superblock ...
bind<sdb7,2>
nonpersistent superblock ...
mask fffffff0
rdev->size: 1985520
masked rdev->size: 1985520
new md_size: 1985520
rdev->size: 1985520
masked rdev->size: 1985520
new md_size: 3971040
raid0: looking at sda7
raid0: comparing sda7(1985520) with sda7(1985520)
raid0 END
raid0: ==> UNIQUE
raid0: 1 zones
raid0: looking at sdb7
raid0: comparing sdb7(1985520) with sda7(1985520)
raid0 EQUAL
raid0: FINAL 1 zones
zone 0
checcking sda7 ... contained as device 0
(1985520) is smallest!.
checcking sdab ... contained as device 1
zone->nb_dev: 2, size: 3971040
current zone offset: 1985520
raid0 : md_size is 3971040 blocks.
raid0 : conf->smallest->size is 3971040 blocks.
raid0 : nb_zone is 1.
raid0 : Allocating 8 bytes for hash.
# raidstop /dev/md2
marking sb clean...
unbind<sdb7,1>
export_rdev(sdb7)
unbind<sdba,0>
export_rdev(sda7)
# raidstart /dev/md2
(read) sda7's offset: 1985408
md: invalid raid superblock magic on sda7
md: sda7 has invalid sb, marking faulty!
can not autostart based on faulty sda7!
export_rdev(sda7)
autostart sda7 failed!
/dev/md2: Invalid argument
------------
some remarks: obviously two different offsets (1985520 and 1985408)
come into play
the bind an unbind arguments do not match
the "huh9???" line is puzzling. This might be a truncated
file name of an earlier filesystem on /dev/sda7.
Im am runnung raidtools vers 0.90 on linux 2.0.35
Here is my /etc/raidtab:
raiddev /dev/md0
raid-level 1
nr-raid-disks 2
nr-spare-disks 0
chunk-size 128
device /dev/sda5
raid-disk 0
device /dev/sdb5
raid-disk 1
raiddev /dev/md1
raid-level 1
nr-raid-disks 2
nr-spare-disks 0
chunk-size 128
raiddev /dev/md2
raid-level 0
nr-raid-disks 2
nr-spare-disks 0
chunk-size 16
device /dev/sda7
raid-disk 0
device /dev/sdb7
raid-disk 1
------------------------
Any hints?
Cheers, Thomas
