On that DMRAID - they are still yet to try it. But we do know the RAID5 works via Int13h interface in real mode and via Windows. I think they thought it was a 4 disk array? I'll ask if they know the actually number of drives in the RAID configuration. On Thu, Nov 21, 2013 at 12:50 PM, Martin Wilck <mwilck@xxxxxxxx> wrote: > On 11/21/2013 12:15 AM, David F. wrote: > >> mdadm: /dev/sdf is identified as a member of /dev/md/ddf0, slot 4. >> mdadm: /dev/sde is identified as a member of /dev/md/ddf0, slot 3. >> mdadm: /dev/sdd is identified as a member of /dev/md/ddf0, slot 2. >> mdadm: /dev/sdc is identified as a member of /dev/md/ddf0, slot 1. >> mdadm: /dev/sdb is identified as a member of /dev/md/ddf0, slot 0. >> mdadm: ignoring /dev/sdb as it reports /dev/sdf as failed >> mdadm: ignoring /dev/sdc as it reports /dev/sdf as failed >> mdadm: ignoring /dev/sdd as it reports /dev/sdf as failed >> mdadm: ignoring /dev/sde as it reports /dev/sdf as failed >> mdadm: no uptodate device for slot 0 of /dev/md/ddf0 >> mdadm: no uptodate device for slot 2 of /dev/md/ddf0 >> mdadm: no uptodate device for slot 4 of /dev/md/ddf0 >> mdadm: no uptodate device for slot 6 of /dev/md/ddf0 >> mdadm: added /dev/sdf to /dev/md/ddf0 as 4 >> mdadm: Container /dev/md/ddf0 has been assembled with 1 drive (out of 5) > > That looks really weird. The (healthy?) devices sdb-sde are ignored > because they report sdf as failed, and then sdf is used for assembly? > > I have no idea at the moment, I need to read the code. > >> Output of dmraid --raid_devices command: >> /dev/sdf: ddf1, ".ddf1_disks", GROUP, unknown, 285155328 sectors, data@ 0 >> /dev/sde: ddf1, ".ddf1_disks", GROUP, ok, 285155328 sectors, data@ 0 >> /dev/sdd: ddf1, ".ddf1_disks", GROUP, ok, 285155328 sectors, data@ 0 >> /dev/sdc: ddf1, ".ddf1_disks", GROUP, ok, 285155328 sectors, data@ 0 >> /dev/sdb: ddf1, ".ddf1_disks", GROUP, ok, 285155328 sectors, data@ 0 > > This seems to support then notion that something's wrong with /dev/sdf. > > Martin -- To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html