On Sat, May 14, 2011 at 12:21 PM, Louis-David Mitterrand <vindex+lists-linux-raid@xxxxxxxxxxx> wrote: > On Sat, May 14, 2011 at 07:33:47AM +1000, NeilBrown wrote: >> On Fri, 13 May 2011 22:29:01 +0200 Louis-David Mitterrand >> <vindex+lists-linux-raid@xxxxxxxxxxx> wrote: >> > Each disk is configured thus: >> > >> > Disk /dev/sda: 1000.2 GB, 1000204886016 bytes >> > 255 heads, 63 sectors/track, 121601 cylinders >> > Units = cylinders of 16065 * 512 = 8225280 bytes >> > Sector size (logical/physical): 512 bytes / 512 bytes >> > I/O size (minimum/optimal): 512 bytes / 512 bytes >> > Disk identifier: 0x05022e04 >> > >> > Device Boot Start End Blocks Id System >> > /dev/sda1 1 32 257008+ fd Linux raid autodetect >> > /dev/sda2 33 17500 140311710 fd Linux raid autodetect >> > /dev/sda3 17501 121601 836191282+ fd Linux raid autodetect >> > >> >> Is this the config reported with the old controller or with the new >> controller? > > Sorry for the confusion, the above was with the old (LSI) controller. > This is the disk geometry with the new (Adaptec) controller: > > Disk /dev/sda: 1000.1 GB, 1000104157184 bytes > 255 heads, 63 sectors/track, 121589 cylinders > Units = cylinders of 16065 * 512 = 8225280 bytes > Sector size (logical/physical): 512 bytes / 512 bytes > I/O size (minimum/optimal): 512 bytes / 512 bytes > Disk identifier: 0x6397e8f6 > > Device Boot Start End Blocks Id System > /dev/sda1 1 32 257008+ fd Linux raid autodetect > /dev/sda2 33 17500 140311710 fd Linux raid autodetect > /dev/sda3 17501 121601 836191282+ fd Linux raid autodetect > > Ah! 121589 vs 121601 cylinders... > >> Because my guess is that the new controller makes the devices look a little >> bit smaller. That would cause the kernel to reject them, but quite possibly >> allow mdadm to think they look OK. >> >> It would also explain why the first 2 partitions work fine and only the last >> one is a problem. >> >> If this were the case I would expect a message like: >> "%s: p%d size %llu extends beyond EOD > > Spot on: > > May 14 10:15:46 zenon kernel: sda: p3 size 1672382565 extends beyond EOD, trunca > ted > > Is there any solution other than backuping my /dev/md2 somewhere with > the old controller and re-creating a (slightly) smaller one with the new > controller? This is just one more live example for partitions vs disks setups. > > Thanks, > -- > 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 > -- Best regards, [COOLCOLD-RIPN] -- 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
