Hi,
I'm trying to set up a RAID-0 device over three disks in a Sparc
Storage Array with RedHat 6.1/SPARC, but am having a problem. I
searched the archives of this list and couldn't find a solution or
a thread on this particular problem.
mkraid works fine, as well as the formatting and mounting of my
md0 device. I can raidstop and raidstart the device all I
want, and /proc/mdstat happily reports the devices existence.
>From what I can see, it works fine...until I reboot:
At a reboot, when the disks are checked, the latter two in the
RAID complain about "bad magic". The md0 device doesn't come
online, and when I go to fdisk the latter two disks...the
disklabel and partition info have vanished.
I tried a number of things, such as toggling auto-detection and
removing the persistent-superblock mode, but to no avail: I always
get the "bad magic" error upon reboot.
First, my raidtab:
#
raiddev /dev/md0
raid-level 0
nr-raid-disks 3
persistent-superblock 1
chunk-size 8
device /dev/sdc5
raid-disk 0
device /dev/sdm5
raid-disk 1
device /dev/sdw5
raid-disk 2
#
My partition table format:
Disk /dev/sdc (Sun disk label): 19 heads, 80 sectors, 2733 cylinders
Units = cylinders of 1520 * 512 bytes
Device Flag Start End Blocks Id System
/dev/sdc3 u 0 2733 2077080 5 Whole disk
/dev/sdc5 0 2733 2077080 83 Linux native
(when I toggled autodetection, I changed it to fd as the HOWTO
mentions).
And lastly, the 'dmesg' upon bootup:
Access ANSI SCSI revision: 02
Detected scsi disk sdn at scsi1, channel 3, id 2, lun 0
Vendor: SEAGATE Model: ST32550W SUN2.1G Rev: 0418
Type: Direct-Access ANSI SCSI revision: 02
Detected scsi disk sdo at scsi1, channel 3, id 3, lun 0
Vendor: SEAGATE Model: ST32550W SUN2.1G Rev: 0418
Type: Direct-Access ANSI SCSI revision: 02
Detected scsi disk sdp at scsi1, channel 3, id 4, lun 0
Vendor: SEAGATE Model: ST32550W SUN2.1G Rev: 0420
Type: Direct-Access ANSI SCSI revision: 02
Detected scsi disk sdq at scsi1, channel 4, id 0, lun 0
Vendor: SEAGATE Model: ST32550W SUN2.1G Rev: 0418
Type: Direct-Access ANSI SCSI revision: 02
Detected scsi disk sdr at scsi1, channel 4, id 1, lun 0
Vendor: SEAGATE Model: ST32550W SUN2.1G Rev: 0418
Type: Direct-Access ANSI SCSI revision: 02
Detected scsi disk sds at scsi1, channel 4, id 2, lun 0
Vendor: SEAGATE Model: ST32550W SUN2.1G Rev: 0418
Type: Direct-Access ANSI SCSI revision: 02
Detected scsi disk sdt at scsi1, channel 4, id 3, lun 0
Vendor: SEAGATE Model: ST32550W SUN2.1G Rev: 0418
Type: Direct-Access ANSI SCSI revision: 02
Detected scsi disk sdu at scsi1, channel 4, id 4, lun 0
Vendor: SEAGATE Model: ST32550W SUN2.1G Rev: 0418
Type: Direct-Access ANSI SCSI revision: 02
Detected scsi disk sdv at scsi1, channel 5, id 0, lun 0
Vendor: SEAGATE Model: ST32550W SUN2.1G Rev: 0418
Type: Direct-Access ANSI SCSI revision: 02
Detected scsi disk sdw at scsi1, channel 5, id 1, lun 0
Vendor: SEAGATE Model: ST32550W SUN2.1G Rev: 0418
Type: Direct-Access ANSI SCSI revision: 02
Detected scsi disk sdx at scsi1, channel 5, id 2, lun 0
Vendor: SEAGATE Model: ST32550W SUN2.1G Rev: 0418
Type: Direct-Access ANSI SCSI revision: 02
Detected scsi disk sdy at scsi1, channel 5, id 3, lun 0
Vendor: SEAGATE Model: ST32550W SUN2.1G Rev: 0418
Type: Direct-Access ANSI SCSI revision: 02
Detected scsi disk sdz at scsi1, channel 5, id 4, lun 0
Vendor: SEAGATE Model: ST32550W SUN2.1G Rev: 0418
Type: Direct-Access ANSI SCSI revision: 02
Detected scsi disk sdaa at scsi1, channel 6, id 0, lun 0
Vendor: SEAGATE Model: ST32550W SUN2.1G Rev: 0418
Type: Direct-Access ANSI SCSI revision: 02
Detected scsi disk sdab at scsi1, channel 6, id 1, lun 0
Vendor: SEAGATE Model: ST32550W SUN2.1G Rev: 0418
Type: Direct-Access ANSI SCSI revision: 02
Detected scsi disk sdac at scsi1, channel 6, id 2, lun 0
Vendor: SEAGATE Model: ST32550W SUN2.1G Rev: 0418
Type: Direct-Access ANSI SCSI revision: 02
Detected scsi disk sdad at scsi1, channel 6, id 3, lun 0
Vendor: SEAGATE Model: ST32550W SUN2.1G Rev: 0418
Type: Direct-Access ANSI SCSI revision: 02
Detected scsi disk sdae at scsi1, channel 6, id 4, lun 0
scsi : detected 1 SCSI cdrom 31 SCSI disks total.
esp0: target 6 asynchronous
Uniform CDROM driver Revision: 2.56
esp0: target 0 [period 100ns offset 15 20.00MHz FAST-WIDE SCSI-II]
SCSI device sda: hdwr sector= 512 bytes. Sectors= 4194995 [2048 MB] [2.0 GB]
SCSI device sdb: hdwr sector= 512 bytes. Sectors= 4194995 [2048 MB] [2.0 GB]
SCSI device sdc: hdwr sector= 512 bytes. Sectors= 4194995 [2048 MB] [2.0 GB]
SCSI device sdd: hdwr sector= 512 bytes. Sectors= 4194995 [2048 MB] [2.0 GB]
SCSI device sde: hdwr sector= 512 bytes. Sectors= 4194995 [2048 MB] [2.0 GB]
SCSI device sdf: hdwr sector= 512 bytes. Sectors= 4194995 [2048 MB] [2.0 GB]
SCSI device sdg: hdwr sector= 512 bytes. Sectors= 4194995 [2048 MB] [2.0 GB]
SCSI device sdh: hdwr sector= 512 bytes. Sectors= 4194995 [2048 MB] [2.0 GB]
SCSI device sdi: hdwr sector= 512 bytes. Sectors= 4194995 [2048 MB] [2.0 GB]
SCSI device sdj: hdwr sector= 512 bytes. Sectors= 4194995 [2048 MB] [2.0 GB]
SCSI device sdk: hdwr sector= 512 bytes. Sectors= 4194995 [2048 MB] [2.0 GB]
SCSI device sdl: hdwr sector= 512 bytes. Sectors= 4194995 [2048 MB] [2.0 GB]
SCSI device sdm: hdwr sector= 512 bytes. Sectors= 4194995 [2048 MB] [2.0 GB]
SCSI device sdn: hdwr sector= 512 bytes. Sectors= 4194995 [2048 MB] [2.0 GB]
SCSI device sdo: hdwr sector= 512 bytes. Sectors= 4194995 [2048 MB] [2.0 GB]
SCSI device sdp: hdwr sector= 512 bytes. Sectors= 4194995 [2048 MB] [2.0 GB]
SCSI device sdq: hdwr sector= 512 bytes. Sectors= 4194995 [2048 MB] [2.0 GB]
SCSI device sdr: hdwr sector= 512 bytes. Sectors= 4194995 [2048 MB] [2.0 GB]
SCSI device sds: hdwr sector= 512 bytes. Sectors= 4194995 [2048 MB] [2.0 GB]
SCSI device sdt: hdwr sector= 512 bytes. Sectors= 4194995 [2048 MB] [2.0 GB]
SCSI device sdu: hdwr sector= 512 bytes. Sectors= 4194995 [2048 MB] [2.0 GB]
SCSI device sdv: hdwr sector= 512 bytes. Sectors= 4194995 [2048 MB] [2.0 GB]
SCSI device sdw: hdwr sector= 512 bytes. Sectors= 4194995 [2048 MB] [2.0 GB]
SCSI device sdx: hdwr sector= 512 bytes. Sectors= 4194995 [2048 MB] [2.0 GB]
SCSI device sdy: hdwr sector= 512 bytes. Sectors= 4194995 [2048 MB] [2.0 GB]
SCSI device sdz: hdwr sector= 512 bytes. Sectors= 4194995 [2048 MB] [2.0 GB]
SCSI device sdaa: hdwr sector= 512 bytes. Sectors= 4194995 [2048 MB] [2.0 GB]
SCSI device sdab: hdwr sector= 512 bytes. Sectors= 4194995 [2048 MB] [2.0 GB]
SCSI device sdac: hdwr sector= 512 bytes. Sectors= 4194995 [2048 MB] [2.0 GB]
SCSI device sdad: hdwr sector= 512 bytes. Sectors= 4194995 [2048 MB] [2.0 GB]
SCSI device sdae: hdwr sector= 512 bytes. Sectors= 4194995 [2048 MB] [2.0 GB]
sunhme.c:v1.10 27/Jan/99 David S. Miller ([EMAIL PROTECTED])
eth0: HAPPY MEAL (SBUS) 10/100baseT Ethernet 08:00:20:82:7a:21
Partition check:
sda: sda1 sda2 sda3
sdb: sdb3 sdb5
sdc: sdc3 sdc5
sdd: sdd3 sdd5
sde: sde3 sde5
sdf: sdf3 sdf5
sdg: sdg3 sdg5
sdh: sdh3 sdh5
sdi: sdi3 sdi5
sdj: sdj3 sdj5
sdk: sdk3 sdk5
sdl: sdl3 sdl5
sdm:Dev 08:c0 Sun disklabel: bad magic 0000
unknown partition table
sdn: sdn3 sdn5
sdo: sdo3 sdo5
sdp: sdp3 sdp5
sdq: sdq3 sdq5
sdr: sdr3 sdr5
sds: sds3 sds5
sdt: sdt3 sdt5
sdu: sdu3 sdu5
sdv: sdv3 sdv5
sdw:Dev 41:60 Sun disklabel: bad magic 0000
unknown partition table
sdx: sdx3 sdx5
sdy: sdy3 sdy5
sdz: sdz3 sdz5
sdaa: sdaa3 sdaa5
sdab: sdab3 sdab5
sdac: sdac3 sdac5
sdad: sdad3 sdad5
sdae: sdae3 sdae5
md.c: sizeof(mdp_super_t) = 4104
VFS: Mounted root (ext2 filesystem) readonly.
Adding Swap: 404304k swap-space (priority -1)
(read) sdc5's sb offset: 2076992 [events: 0000000e]
blkdev_open() failed: -6
md: could not lock sdm5, zero-size? Marking faulty.
could not import sdm5, trying to run array nevertheless.
blkdev_open() failed: -6
md: could not lock sdw5, zero-size? Marking faulty.
could not import sdw5, trying to run array nevertheless.
autorun ...
considering sdc5 ...
adding sdc5 ...
created md0
bind<sdc5,1>
running: <sdc5>
now!
sdc5's event counter: 0000000e
md0: former device sdm5 is unavailable, removing from array!
md0: former device sdw5 is unavailable, removing from array!
mask fffffff8
rdev->size: 2076992
masked rdev->size: 2076992
new md_size: 2076992
md0: max total readahead window set to 384k
md0: 3 data-disks, max readahead per data-disk: 128k
md: md0, array needs 3 disks, has 1, aborting.
raid0: disks are not ordered, aborting!
pers->run() failed ...
do_md_run() returned -22
unbind<sdc5,0>
export_rdev(sdc5)
md0 stopped.
... autorun DONE.
eth0: Auto-Negotiation unsuccessful, trying force link mode
eth0: Link has been forced up using internal transceiver at 10Mb/s, Half Duplex.
Can anyone help me? I think this is something easy, but I just
don't see what I'm doing wrong.
Thanks much,
-Robb
