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patbe
n00b
Joined: 17 Mar 2003
Posts: 39
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 Posted: Tue Apr 08, 2003 1:47 pm Post subject: software raid 5 |
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I'm a total newbie on this game but I'm trying to setup a raid 5 on my gentoo box, when I run mkraid /dev/md0 I get: aborted..
the /proc/mdstat is as follows:
person... [raid5]
read_ahead not set
md0 : inactive scsi/host0/bus0/target2/lun0/part1[1] scsi/host0/bus0/traget1/lun0/part1[0]
0 blocks
unused devices: <none>
any ideas?
.p |
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dirtyjake
n00b
Joined: 06 Jul 2002
Posts: 60
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| Posted: Wed Apr 09, 2003 12:45 am Post subject: |
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| What does your raidtab say? And for good measure, what does `fdisk -l` report? |
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patbe
n00b
Joined: 17 Mar 2003
Posts: 39
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| Posted: Wed Apr 09, 2003 4:45 am Post subject: |
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# cat /etc/raidtab
raiddev /dev/md0
raid-level 5
nr-raid-disks 4
nr-spare-disks 1
persistent-superblock 1
parity-algorithm left-symmetric
chunk-size 32
device /dev/sdb1
raid-disk 0
device /dev/sdc1
raid-disk 1
device /dev/sdd1
raid-disk 2
device /dev/sde1
raid-disk 3
device /dev/sdf1
spare-disk 0
# fdisk -l
Disk /dev/scsi/host0/bus0/target0/lun0/disc: 4512 MB, 4512701440 bytes
255 heads, 63 sectors/track, 548 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Device Boot Start End Blocks Id System
/dev/scsi/host0/bus0/target0/lun0/part1 * 1 13 104391 83 Linux
/dev/scsi/host0/bus0/target0/lun0/part2 14 30 136552+ 82 Linux swap
/dev/scsi/host0/bus0/target0/lun0/part3 31 548 4160835 83 Linux
Disk /dev/scsi/host0/bus0/target1/lun0/disc: 4512 MB, 4512701440 bytes
255 heads, 63 sectors/track, 548 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Device Boot Start End Blocks Id System
/dev/scsi/host0/bus0/target1/lun0/part1 1 548 4401778+ fd Linux raid autodetect
Disk /dev/scsi/host0/bus0/target2/lun0/disc: 4512 MB, 4512701440 bytes
255 heads, 63 sectors/track, 548 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Device Boot Start End Blocks Id System
/dev/scsi/host0/bus0/target2/lun0/part1 1 548 4401778+ fd Linux raid autodetect
Disk /dev/scsi/host0/bus0/target3/lun0/disc: 4512 MB, 4512701952 bytes
255 heads, 63 sectors/track, 548 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Device Boot Start End Blocks Id System
/dev/scsi/host0/bus0/target3/lun0/part1 1 548 4401778+ fd Linux raid autodetect
Disk /dev/scsi/host0/bus0/target4/lun0/disc: 4512 MB, 4512701440 bytes
255 heads, 63 sectors/track, 548 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Device Boot Start End Blocks Id System
/dev/scsi/host0/bus0/target4/lun0/part1 1 548 4401778+ fd Linux raid autodetect
Disk /dev/scsi/host0/bus0/target5/lun0/disc: 4512 MB, 4512701440 bytes
255 heads, 63 sectors/track, 548 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Device Boot Start End Blocks Id System
/dev/scsi/host0/bus0/target5/lun0/part1 1 548 4401778+ fd Linux raid autodetect
.p |
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dirtyjake
n00b
Joined: 06 Jul 2002
Posts: 60
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| Posted: Wed Apr 09, 2003 5:32 pm Post subject: |
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Well, everything looks good so far. Are you sure there was no error other than "mkraid: aborted"? Generally, there is at one error printed prior to that.
Were any of these disks part of an array before now? Here are a couple of things you can try. First, see if `mkraid --debug /dev/md0` gives any more info than just "aborted". Next, try to kill the superblocks on your RAID partitions in case that is causing a problem:
| Code: |
for i in b c d e f; do dd if=/dev/zero of=/dev/sd$1 count=1; done
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* be absolutely sure you don't need any data on those partitions!
Retry your mkraid. If that doesn't work, try `mkraid --really-force /dev/md0` but again, be absolutely sure you don't need any data on those partitions. If that still doesn't work, add the --debug flag and report back all your --debug outputs (including the first --debug above).
good luck |
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