Message-Id: <200203030045.g230j4I31278@slimnblack.bouncing.org> From: nod <nod@bouncing.org> Date: Sun, 3 Mar 2002 00:48:06 +0000 Subject: Re: [suse-sparc] RAID troubles
to my unexpert eye the raidtab looks correct, but what I meant was have you
set the partition type correctly in fdisk e.g.
# fdisk -l /dev/sde
outputs :
Disk /dev/hde: 16 heads, 63 sectors, 59560 cylinders
Units = cylinders of 1008 * 512 bytes
Device Boot Start End Blocks Id System
/dev/sde1 * 1 40635 20480008+ fd Linux raid autodetect
/dev/sde2 40636 59560 9538200 fd Linux raid autodetect
so that the systems identifies it correctly ?
On Saturday 02 Mar 2002 10:58 pm, Brian Hazlehurst wrote:
> > could you include your raidtab and I'll compare it with mine. Also you
> > are setting the partition type correctly using fdisk ?
>
> I believe the partitions are being set right. The first partition (Linux
> native) is being used on each disk. The only other partition is a third
> partition (whole disk) which is required by Sun (as I understand it).
>
> If I don't create the RAID (with mkraid), then the disks each maintain
> their partition tables on reboot. If I do make the RAID, then everything
> appears fine, but on reboot the partitions are hosed.
>
> Here is the raidtab file:
>
> raiddev /dev/md0
> raid-level 5
> nr-raid-disks 7
> nr-spare-disks 1
> persistent-superblock 1
> parity-algorithm left-symmetric
> chunk-size 32
> device /dev/sde1
> raid-disk 0
> device /dev/sdf1
> raid-disk 1
> device /dev/sdg1
> raid-disk 2
> device /dev/sdh1
> raid-disk 3
> device /dev/sdi1
> raid-disk 4
> device /dev/sdj1
> raid-disk 5
> device /dev/sdk1
> raid-disk 6
> device /dev/sdl1
> spare-disk 0
>
> On Sat, 2 Mar 2002, nod wrote:
> > could you include your raidtab and I'll compare it with mine. Also you
> > are setting the partition type correctly using fdisk ?
> >
> > On Saturday 02 Mar 2002 2:07 am, Brian Hazlehurst wrote:
> > > Hi list,
> > >
> > > I make the raid device (mkraid, with a raidtab that specifies raid 5
> > > for 8 distinct drives, including one "spare").
> > >
> > > I create a file system (I've tried ext2 and reiser file systems).
> > >
> > > I reboot (sometimes, I've mounted the block device and successfully
> > > written to it first).
> > >
> > > Each time, on the reboot, the partition tables on most of the disks get
> > > "lost" (usually, the first and last disk seem to retain their partition
> > > tables), and the device is unusable.
> > >
> > > I'm not sure what's going on. Any suggestions? I'm running 7.3 and
> > > the raid is an array on a single scsi controller.
> > >
> > > -Brian
> > >
> > > brian@dcog.net
> >
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