From mboxrd@z Thu Jan 1 00:00:00 1970 From: Nikolay Kichukov Subject: Re: add another disk to existing raid 0, ie grow raid 0 possible? Date: Thu, 16 Feb 2012 17:38:52 +0200 Message-ID: <4F3D230C.5000503@oldum.net> References: <4F212A59.1070008@oldum.net> <20120126215713.0c24db62@notabene.brown> <4F21396D.7030308@oldum.net> <20120209145054.4443a48b@notabene.brown> <4F352541.2050207@oldum.net> <20120213090727.1d06291f@notabene.brown> <4F3A2CC2.4090101@oldum.net> <20120216175553.654595b4@notabene.brown> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: QUOTED-PRINTABLE Return-path: In-Reply-To: <20120216175553.654595b4@notabene.brown> Sender: linux-raid-owner@vger.kernel.org To: NeilBrown Cc: =?UTF-8?B?TWF0aGlhcyBCdXLDqW4=?= , linux-raid List-Id: linux-raid.ids -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hi, It really might be fixed in recent code, just for consistency: dpkg -l | grep mdadm ii mdadm 3.2.3-2 = tool to administer Linux MD arrays (software RAID) uname -a Linux hanna64 3.1.0-1-amd64 #1 SMP Tue Jan 10 05:01:58 UTC 2012 x86_64 = GNU/Linux Cheers, - -Nik On 02/16/2012 08:55 AM, NeilBrown wrote: > On Tue, 14 Feb 2012 11:43:30 +0200 Nikolay Kichukov > wrote: >=20 >> -----BEGIN PGP SIGNED MESSAGE----- >> Hash: SHA1 >=20 >> Hello Neil, >> Here is the result, I think I managed to reproduce it as it has conv= erted the raid0 to raid4. >=20 >=20 >> so commands in sequence: >=20 >> mdadm --verbose --create /dev/md/mdtest --level=3D0 --raid-devices=3D= 2 --metadata=3D1.2 /dev/loop0 /dev/loop1 >> mdadm: chunk size defaults to 512K >> mdadm: array /dev/md/mdtest started. >=20 >> strace -o /tmp/foo -f mdadm --grow /dev/md/mdtest --raid-devices=3D3= --add /dev/loop2 >> mdadm: level of /dev/md/mdtest changed to raid4 >> mdadm: /dev/loop2 not large enough to join array >> mdadm: Need to backup 3072K of critical section.. >> mdadm: /dev/md/mdtest: Cannot grow - need a spare or backup-file to = backup critical section >> mdadm: aborting level change >=20 >=20 > I tried exactly that and it worked perfectly. > Maybe the bug has been fixed. > Please remind me exactly which versions of mdadm and linux you are us= ing. >=20 > Thanks, > NeilBrown >=20 >=20 N=E2=80=B9=C2=A7=C2=B2=C3=A6=C3=ACr=C2=B8=E2=80=BAy=C3=BA=C3=A8=C5=A1=C3= =98b=C2=B2X=C2=AC=C2=B6=C3=87=C2=A7v=C3=98^=E2=80=93)=C3=9E=C2=BA{.n=C3= =87+=E2=80=B0=C2=B7=C2=A5=C5=A0{=C2=B1=C2=AD=C2=A8=C2=9D=C5=A0{ay=C2=BA= =1D=C3=8A=E2=80=A1=C3=9A=E2=84=A2=C3=AB,j=07=C2=AD=C2=A2f=C2=A3=C2=A2=C2= =B7h=C5=A1=E2=80=B9=C3=A0z=C2=B9=1E=C2=AEw=C2=A5=C2=A2=C2=B8=0C=C2=A2=C2= =B7=C2=A6j:+v=E2=80=B0=C2=A8=C5=A0w=C3=A8j=C3=98m=C2=B6=C5=B8=C3=BF=C2=BE= =07=C2=AB=E2=80=98=C3=AA=C3=A7zZ+=C6=92=C3=B9=C5=A1=C5=BD=C5=A0=C3=9D=C2= =A2j"=C2=9D=C3=BA!tml=3D -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.11 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iQEcBAEBAgAGBQJPPSMMAAoJEDFLYVOGGjgXKWgH/3W4VqM65Dq4j0XIpyDUYi2B ATFvVtzmBfiXvNnVBDdP953OK5bBrdcfXUbqYcRUOnzIPEcnxycWxtAe4qO/+OT5 ZJVajCD5JT8dD/xpSbW+bqi9CHo1kRzCfQmI9GydIYykfN6qjS7jfJqH4Jp6Au/w 2UFE0ZyZvB9pVrORdUCCZ7r0Zj2ctofqhxAG1Rip1ZZXtpuSHayIib5gUBx2S/JB =46QPElqbaEureoDzG5fSg3IMBB7Sc37AjxzxbWkvYd1mBe2e9v4GHnsjv+wEukR95 e5VMr1NZ31AUzeQJR9YQW0NEjE/x/dar9+3jTXwZ1J2Z/1j08lsx9yL4kum3KDQ=3D =3DgOyk -----END PGP SIGNATURE----- -- To unsubscribe from this list: send the line "unsubscribe linux-raid" i= n the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html