From mboxrd@z Thu Jan 1 00:00:00 1970 From: NeilBrown Subject: Re: RAID6 issues Date: Tue, 13 Sep 2011 08:44:19 +0200 Message-ID: <20110913084419.380babcc@notabene.brown> References: <20110913082511.3c34dec9@notabene.brown> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=PGP-SHA1; boundary="Sig_/8iJekUcK/Z0O9AeIbfEzZjS"; protocol="application/pgp-signature" Return-path: In-Reply-To: Sender: linux-raid-owner@vger.kernel.org To: Andriano Cc: linux-raid@vger.kernel.org List-Id: linux-raid.ids --Sig_/8iJekUcK/Z0O9AeIbfEzZjS Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable On Tue, 13 Sep 2011 16:33:36 +1000 Andriano wrote: > > > >> Hello Linux-RAID mailing list, > >> > >> I have an issue with my RAID6 array. > >> Here goes a short description of the system: > >> > >> opensuse 11.4 > >> Linux 3.0.4-2-desktop #1 SMP PREEMPT Wed Aug 31 09:30:44 UTC 2011 > >> (a432f18) x86_64 x86_64 x86_64 GNU/Linux > >> Gigabyte EP35C-DS3 motherboard with 8 SATA ports + SuperMicro > >> AOC-SASLP-MV8 based on Marvel 6480, firmware updated to 3.1.0.21 > >> running mdadm 3.2.2, single array consists of 10 2T disks, 8 of them > >> connected to the HBA, 2 - motherboard ports > >> > >> I had some issues with one of the onboard connected disks, so tried to > >> plug it to different ports, just to eliminate possibly faulty port. > >> After reboot, suddenly other drives got kicked out from the array. > >> Re-assembling them gives weird errors. > >> > >> --- some output --- > >> [3:0:0:0] =A0 =A0disk =A0 =A0ATA =A0 =A0 =A0ST2000DL003-9VT1 CC32 =A0/= dev/sdb > >> [5:0:0:0] =A0 =A0disk =A0 =A0ATA =A0 =A0 =A0ST2000DL003-9VT1 CC32 =A0/= dev/sdc > >> [8:0:0:0] =A0 =A0disk =A0 =A0ATA =A0 =A0 =A0ST32000542AS =A0 =A0 CC34 = =A0/dev/sdd > >> [8:0:1:0] =A0 =A0disk =A0 =A0ATA =A0 =A0 =A0ST32000542AS =A0 =A0 CC34 = =A0/dev/sde > >> [8:0:2:0] =A0 =A0disk =A0 =A0ATA =A0 =A0 =A0ST32000542AS =A0 =A0 CC34 = =A0/dev/sdf > >> [8:0:3:0] =A0 =A0disk =A0 =A0ATA =A0 =A0 =A0ST32000542AS =A0 =A0 CC34 = =A0/dev/sdg > >> [8:0:4:0] =A0 =A0disk =A0 =A0ATA =A0 =A0 =A0ST32000542AS =A0 =A0 CC34 = =A0/dev/sdh > >> [8:0:5:0] =A0 =A0disk =A0 =A0ATA =A0 =A0 =A0ST2000DL003-9VT1 CC32 =A0/= dev/sdi > >> [8:0:6:0] =A0 =A0disk =A0 =A0ATA =A0 =A0 =A0ST2000DL003-9VT1 CC32 =A0/= dev/sdj > >> [8:0:7:0] =A0 =A0disk =A0 =A0ATA =A0 =A0 =A0ST2000DL003-9VT1 CC32 =A0/= dev/sdk > >> > >> #more /etc/mdadm.conf > >> DEVICE partitions > >> ARRAY /dev/md0 level=3Draid6 UUID=3D82ac7386:a854194d:81b795d1:76c9c9ff > >> > >> #mdadm --assemble --force --scan /dev/md0 > >> mdadm: failed to add /dev/sdc to /dev/md0: Invalid argument > >> mdadm: failed to add /dev/sdb to /dev/md0: Invalid argument > >> mdadm: failed to add /dev/sdh to /dev/md0: Invalid argument > >> mdadm: /dev/md0 assembled from 7 drives - not enough to start the arra= y. > >> > >> dmesg: > >> [ 8215.651860] md: sdc does not have a valid v1.2 superblock, not impo= rting! > >> [ 8215.651865] md: md_import_device returned -22 > >> [ 8215.652384] md: sdb does not have a valid v1.2 superblock, not impo= rting! > >> [ 8215.652388] md: md_import_device returned -22 > >> [ 8215.653177] md: sdh does not have a valid v1.2 superblock, not impo= rting! > >> [ 8215.653182] md: md_import_device returned -22 > >> > >> mdadm -E /dev/sd[b..k] gives exactly the same Magic number and Array > >> UUID for every disk, all checksums are correct, > >> the only difference is - =A0Avail Dev Size : 3907028896 is the same for > >> 9 disks, and 3907028864 for sdc > > > > Please provide that output so we can see it too - it might be helpful. > > > > NeilBrown >=20 >=20 > # mdadm --assemble --force --update summaries /dev/md0 /dev/sdc > mdadm: --update=3Dsummaries not understood for 1.x metadata >=20 Sorry - I was too terse. I meant that output of "mdadm -E ...." NeilBrown >=20 > > > >> > >> mdadm --assemble --force --update summaries /dev/sd.. - didn't improve= anything > >> > >> > >> I would really appreciate if someone could point me to the right direc= tion. > >> > >> thanks > >> > >> Andrew > >> -- > >> To unsubscribe from this list: send the line "unsubscribe linux-raid" = in > >> the body of a message to majordomo@vger.kernel.org > >> More majordomo info at =A0http://vger.kernel.org/majordomo-info.html > > > > --Sig_/8iJekUcK/Z0O9AeIbfEzZjS Content-Type: application/pgp-signature; name=signature.asc Content-Disposition: attachment; filename=signature.asc -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.16 (GNU/Linux) iD8DBQFObvvDG5fc6gV+Wb0RAq3mAJ40y8Qid83cVumYpWATqfe9vm9SBQCg10a2 NYeg04N5vWk7gPiM2NC0dTI= =356Q -----END PGP SIGNATURE----- --Sig_/8iJekUcK/Z0O9AeIbfEzZjS--