Re: Raid5 assemble after dual sata port failure

2007-11-08 Thread David Greaves
Chris Eddington wrote: Hi, Hi While on vacation I had one SATA port/cable fail, and then four hours later a second one fail. After fixing/moving the SATA ports, I can reboot and all drives seem to be OK now, but when assembled it won't recognize the filesystem. That's unusual - if the

Re: 2.6.23.1: mdadm/raid5 hung/d-state

2007-11-08 Thread BERTRAND Joël
BERTRAND Joël wrote: Chuck Ebbert wrote: On 11/05/2007 03:36 AM, BERTRAND Joël wrote: Neil Brown wrote: On Sunday November 4, [EMAIL PROTECTED] wrote: # ps auxww | grep D USER PID %CPU %MEMVSZ RSS TTY STAT START TIME COMMAND root 273 0.0 0.0 0 0 ?

Re: Was: [RFC PATCH 2.6.23.1] md: add dm-raid1 read balancing

2007-11-08 Thread Konstantin Sharlaimov
On Wed, 2007-11-07 at 10:15 +0100, Goswin von Brederlow wrote: I wonder if there shouldn't be a way to turn this off (or if there already is one). Or more generaly an option to say what is near. Specifically I would like to teach the raid1 layer that I have 2 external raid boxes with a 16k

Re: 2.6.23.1: mdadm/raid5 hung/d-state

2007-11-08 Thread Justin Piszcz
On Thu, 8 Nov 2007, BERTRAND Joël wrote: BERTRAND Joël wrote: Chuck Ebbert wrote: On 11/05/2007 03:36 AM, BERTRAND Joël wrote: Neil Brown wrote: On Sunday November 4, [EMAIL PROTECTED] wrote: # ps auxww | grep D USER PID %CPU %MEMVSZ RSS TTY STAT START TIME COMMAND

Re: Was: [RFC PATCH 2.6.23.1] md: add dm-raid1 read balancing

2007-11-08 Thread Bill Davidsen
Rik van Riel wrote: On Thu, 08 Nov 2007 17:28:37 +0100 Goswin von Brederlow [EMAIL PROTECTED] wrote: Maybe you need more parameter: Generally a bad idea, unless you can come up with sane defaults (which do not need tuning 99% of the time) or you can derive these parameters

Re: Was: [RFC PATCH 2.6.23.1] md: add dm-raid1 read balancing

2007-11-08 Thread Bill Davidsen
Goswin von Brederlow wrote: Konstantin Sharlaimov [EMAIL PROTECTED] writes: On Wed, 2007-11-07 at 10:15 +0100, Goswin von Brederlow wrote: I wonder if there shouldn't be a way to turn this off (or if there already is one). Or more generaly an option to say what is near. Specifically

Re: 2.6.23.1: mdadm/raid5 hung/d-state

2007-11-08 Thread Bill Davidsen
Jeff Lessem wrote: Dan Williams wrote: The following patch, also attached, cleans up cases where the code looks at sh-ops.pending when it should be looking at the consistent stack-based snapshot of the operations flags. I tried this patch (against a stock 2.6.23), and it did not work for

Re: Was: [RFC PATCH 2.6.23.1] md: add dm-raid1 read balancing

2007-11-08 Thread Rik van Riel
On Thu, 08 Nov 2007 17:28:37 +0100 Goswin von Brederlow [EMAIL PROTECTED] wrote: Maybe you need more parameter: Generally a bad idea, unless you can come up with sane defaults (which do not need tuning 99% of the time) or you can derive these parameters automatically from the RAID configuration

[PATCH] raid5: fix unending write sequence

2007-11-08 Thread Dan Williams
From: Dan Williams [EMAIL PROTECTED] debug output from Joël's system handling stripe 7629696, state=0x14 cnt=1, pd_idx=2 ops=0:0:0 check 5: state 0x6 toread read write f800ffcffcc0 written check 4: state 0x6 toread read

Building a new raid6 with bitmap does not clear bits during resync

2007-11-08 Thread Goswin von Brederlow
Hi, I have created a new raid6: md0 : active raid6 sdb1[0] sdl1[5] sdj1[4] sdh1[3] sdf1[2] sdd1[1] 6834868224 blocks level 6, 512k chunk, algorithm 2 [6/6] [UU] [] resync = 21.5% (368216964/1708717056) finish=448.5min speed=49808K/sec bitmap: 204/204

Re: telling mdadm to use spare drive.

2007-11-08 Thread Janek Kozicki
Richard Scobie said: (by the date of Thu, 08 Nov 2007 08:13:19 +1300) What kernel and RAID level is this? If it's RAID 1, I seem to recall there was a relatively recently fixed bug for this. debian etch, stock install Linux 2.6.18-5-k7 #1 SMP i686 GNU/Linux The problem was with was

Re: Was: [RFC PATCH 2.6.23.1] md: add dm-raid1 read balancing

2007-11-08 Thread Goswin von Brederlow
Rik van Riel [EMAIL PROTECTED] writes: On Thu, 08 Nov 2007 17:28:37 +0100 Goswin von Brederlow [EMAIL PROTECTED] wrote: Maybe you need more parameter: Generally a bad idea, unless you can come up with sane defaults (which do not need tuning 99% of the time) or you can derive these

Re: 2.6.23.1: mdadm/raid5 hung/d-state

2007-11-08 Thread Carlos Carvalho
Jeff Lessem ([EMAIL PROTECTED]) wrote on 6 November 2007 22:00: Dan Williams wrote: The following patch, also attached, cleans up cases where the code looks at sh-ops.pending when it should be looking at the consistent stack-based snapshot of the operations flags. I tried this patch

Re: telling mdadm to use spare drive.

2007-11-08 Thread Richard Scobie
Janek Kozicki wrote: Richard Scobie said: (by the date of Thu, 08 Nov 2007 08:13:19 +1300) What kernel and RAID level is this? If it's RAID 1, I seem to recall there was a relatively recently fixed bug for this. debian etch, stock install Linux 2.6.18-5-k7 #1 SMP i686 GNU/Linux The