From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tobias McNulty Subject: Re: reshape failure Date: Wed, 11 May 2011 14:06:23 -0400 Message-ID: References: <20110217073247.2dbc9299@notabene.brown> <20110217080634.510b017e@notabene.brown> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: QUOTED-PRINTABLE Return-path: In-Reply-To: Sender: linux-raid-owner@vger.kernel.org To: linux-raid@vger.kernel.org List-Id: linux-raid.ids On Thu, Feb 17, 2011 at 4:39 PM, Tobias McNulty wrote: > > On Wed, Feb 16, 2011 at 4:06 PM, NeilBrown wrote: > > > > On Wed, 16 Feb 2011 15:41:46 -0500 Tobias McNulty > > wrote: > > > > > > Now I see this in /etc/mdstat: > > > > > > md0 : active raid6 sdf[0] sdg[5](S) sdh[4] sdc[3] sdd[2] sde[1] > > > =A0 =A0 =A0 5860543488 blocks super 0.91 level 6, 64k chunk, algo= rithm 2 [5/5] [UUUUU] > > > =A0 =A0 =A0 [=3D>...................] =A0reshape =3D =A09.9% (193= 691648/1953514496) > > > finish=3D97156886.4min speed=3D0K/sec > > > > > > Is the 0K/sec something I need to worry about? > > > > Maybe. =A0If the stays at 0K/sec and the 9.9% stays at 9.9%, then y= es. =A0It is > > something to worry about. > > It seems like it was another buggy SATA HBA?? I moved everything back > to the on-board SATA ports (1 of the 2 drives in the OS RAID1 device > and the 5 non-spare devices in the RAID6 -> RAID5 device) and it's > happily reshaping again (even without the=A0MDADM_GROW_ALLOW_OLD magi= c > this time): > > md0 : active raid6 sda[0] sde[4] sdd[3] sdc[2] sdb[1] > =A0=A0 =A0 =A05860543488 blocks super 0.91 level 6, 64k chunk, algori= thm 2 [5/5] [UUUUU] > =A0=A0 =A0 =A0[=3D=3D>..................] =A0reshape =3D 10.0% (19696= 0192/1953514496) > finish=3D11376.9min speed=3D2572K/sec > > Is it really possible that I had two buggy SATA cards, from different > manufacturers? =A0Perhaps the motherboard is at fault? =A0Or am I mis= sing > something very basic about connecting SATA drives to something other > than the on-board ports? > > Currently I'm using a SuperMicro X7SPA-HF [1] motherboard with a > AOC-SASLP-MV8 [2] HBA, and the machine is running Debian squeeze > (2.6.32-5-amd64). > > Tobias > > [1] http://www.supermicro.com/products/motherboard/ATOM/ICH9/X7SPA.cf= m?typ=3DH&IPMI=3DY > [2] http://www.supermicro.com/products/accessories/addon/AOC-SASLP-MV= 8.cfm So, after figuring out the hardware issues, the reshape appears to have completed successfully (hurray!), but /proc/mdstat still says that the array is level 6. Is there another command I have to run to put the finishing touches on the conversion? md0 : active raid6 sda[0] sde[4] sdd[3] sdc[2] sdb[1] 5860543488 blocks level 6, 64k chunk, algorithm 18 [5/5] [UUUUU] Thank you! Tobias -- Tobias McNulty, Managing Partner Caktus Consulting Group, LLC http://www.caktusgroup.com -- 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