Hello Neil ,
On Tue, 9 Oct 2007, Neil Brown wrote:
On Tuesday October 9, [EMAIL PROTECTED] wrote:
Problems at step 4.: 'man mdadm' doesn't tell if it's possible to
grow an array to a degraded array (non existant disc). Is it possible?
Why not experiment with loop devices on files
Hello Justin , Three seperate single runs of bonnie(*) .
Please note , the linux-2.6.23-rc6 , Concerns your email of
this weekend about Subject: Bonnie++ with 1024k stripe SW/RAID5
causes kernel to goto D-state .
No lockups or hangs were noticed .
hoping that
Mr. Dan Williams(et al?) patches will bring this up even more .
Thank you for posting the optimizations .
Twyl , JimL
On Mon, 1 Oct 2007, Mr. James W. Laferriere wrote:
Hello Justin , Three seperate single runs of bonnie(*) .
Please
Hello Justin all ,
--Justin Piszcz Wrote: --
Date: Wed, 26 Sep 2007 12:24:20 -0400 (EDT)
From: Justin Piszcz [EMAIL PROTECTED]
Subject: Re: mkfs options for a 16x hw raid5 and xfs (mostly large files)
I have a question, when I use multiple writer threads (2 or 3) I see
Hello Bill all ,
Bill Davidsen [EMAIL PROTECTED] Sat, 22 Sep 2007 09:41:40 -0400 , wrote:
My only advice is to try and quantify the data volume and look at nbd vs.
iSCSI to provide the mirror if you go that way.
You mentioned nbd as a transport for disk to remote disk .
Hello Dan ,
On Thu, 13 Sep 2007, Dan Williams wrote:
On 9/13/07, Yuri Tikhonov [EMAIL PROTECTED] wrote:
Hi Dan,
On Friday 07 September 2007 20:02, you wrote:
You need to fetch from the 'md-for-linus' tree. But I have attached
them as well.
git fetch
Hello Dan ,
On Mon, 27 Aug 2007, Dan Williams wrote:
On 8/25/07, Mr. James W. Laferriere [EMAIL PROTECTED] wrote:
On Mon, 20 Aug 2007, Dan Williams wrote:
On 8/18/07, Mr. James W. Laferriere [EMAIL PROTECTED] wrote:
Hello All , Here we go again . Again attempting to do
On Sun, 26 Aug 2007, Justin Piszcz wrote:
On Sun, 26 Aug 2007, Abe Skolnik wrote:
Dear Mr./Dr./Prof. Brown et al,
I recently had the unpleasant experience of creating an MD array for
the purpose of booting off it and then not being able to do so. Since
I had already made changes to the
Hello Dan ,
On Mon, 20 Aug 2007, Dan Williams wrote:
On 8/18/07, Mr. James W. Laferriere [EMAIL PROTECTED] wrote:
Hello All , Here we go again . Again attempting to do bonnie++ testing
on a small array .
Kernel 2.6.22.1
Patches involved ,
IOP1
Hello All , Here we go again . Again attempting to do bonnie++ testing
on a small array .
Kernel 2.6.22.1
Patches involved ,
IOP1 , 2.6.22.1-iop1 for improved sequential write performance
(stripe-queue) , Dan Williams [EMAIL PROTECTED]
[SCSI] Addition to pci_ids.h for
Hello Dan ,
On Thu, 19 Jul 2007, Dan Williams wrote:
Per Bill Davidsen's request I have made available a 2.6.22.1 based
kernel with the current raid5 performance changes I have been working
on:
1/ Offload engine acceleration (recently merged for the 2.6.23
development cycle)
2/
Hello Bill ,
On Mon, 23 Jul 2007, Bill Davidsen wrote:
Mr. James W. Laferriere wrote:
Hello Andrew ,
On Tue, 17 Jul 2007, Andrew Burgess wrote:
The 'MCE's have been ongoing for sometime . I have replaced every
item
in the system except the chassis scsi backplane power
Hello Andrew ,
On Tue, 17 Jul 2007, Andrew Burgess wrote:
The 'MCE's have been ongoing for sometime . I have replaced every item
in the system except the chassis scsi backplane power supply(750Watts) .
Everything . MB,cpu,memory,scsi controllers, ...
These
Hello Alan ( Justin) ,
On Sun, 15 Jul 2007, Alan Cox wrote:
On Sat, 14 Jul 2007 17:08:27 -0700 (PDT)
Mr. James W. Laferriere [EMAIL PROTECTED] wrote:
Hello All , I was under the impression that a 'machine check' would be
caused by some near to the CPU hardware failure
Hello Justin ( all) ,
On Thu, 28 Jun 2007, Justin Piszcz wrote:
On Thu, 28 Jun 2007, Peter Rabbitson wrote:
Justin Piszcz wrote:
On Thu, 28 Jun 2007, Peter Rabbitson wrote:
Interesting, I came up with the same results (1M chunk being superior)
with a completely different raid set
Hello Dan ,
On Tue, 26 Jun 2007, Dan Williams wrote:
Greetings,
Per Andrew's suggestion this is the md raid5 acceleration patch set
updated with more thorough changelogs to lower the barrier to entry for
reviewers. To get started with the code I would suggest the following
order:
Hello Justin ,
On Sun, 22 Apr 2007, Justin Piszcz wrote:
On Sun, 22 Apr 2007, Pallai Roland wrote:
On Sunday 22 April 2007 16:48:11 Justin Piszcz wrote:
Have you also optimized your stripe cache for writes?
Not yet. Is it worth it?
--
d
Yes, it is-- well, if write speed is important
Hello Neil , I found the problem that caused the 'cannot allcate
memory' , DON'T use '--bitmap=' .
But that said , H , Shouldn't mdadm just stop say ...
'md: bitmaps not supported for this level.'
Like it puts out into dmesg .
Also think this message
Hello Neil , Someone else reported this before . But I'd thought it
was under a older kernel than 2.6.21-rc4 . Hth , JimL
root 2936 0.0 0.0 2948 1760 tts/0Ss 04:30 0:00 -bash
root 2965 0.3 0.0 0 0 ?S 04:34 0:00 [md3_raid5]
root 2977 0.0
Hello Neil Bill ,
On Sun, 18 Mar 2007, Bill Davidsen wrote:
Neil Brown wrote:
On Saturday March 17, [EMAIL PROTECTED] wrote:
Neil Brown wrote:
In-kernel auto-assembly using partition type 0xFD only works for
metadata=0.90. This is deliberate.
Don't use 0xFD partitions. Use mdadm
Hello All , I am having a dickens of a time with preparing this system
to replace my present one .
I created a raid6 array over 6 147GB scsi drives .
steps I followed were .
fdisk /dev/sd[c-h] ( one at a time of course )
created a partition starting at cyl 2
Hello Dean ,
On Mon, 15 Jan 2007, dean gaudet wrote:
...snip...
it should just be:
echo check /sys/block/mdX/md/sync_action
if you don't have a /sys/block/mdX/md/sync_action file then your kernel is
too old... or you don't have /sys mounted... (or you didn't replace X with
the raid
Hello Neil Luca ,
On Fri, 8 Sep 2006, Luca Berra wrote:
On Fri, Sep 08, 2006 at 02:26:31PM +0200, Lars Schimmer wrote:
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1
Michael Tokarev wrote:
Lars Schimmer wrote:
Hi!
I´ve got a software RAiD5 with 6 250GB HDs.
Now I changed one disk
Hello All ,
On Thu, 3 Aug 2006, David Greaves wrote:
Neil Brown wrote:
write-bits-here-to-dirty-them-in-the-bitmap
is probably (no, definitely) too verbose.
Any better suggestions?
It's not actually a bitmap is it?
It takes a number or range and *operates* on a bitmap.
so:
Hello All , What change in Glibc mekes this necessary ? Is there a
method available to include the getpwnam getgrnam structures so that
full static build will work . Tia , JimL
gcc -Wall -Werror -Wstrict-prototypes -ggdb -DSendmail=\/usr/sbin/sendmail -t\
Hello Gabor ,
On Tue, 20 Jun 2006, Gabor Gombas wrote:
On Tue, Jun 20, 2006 at 03:08:59PM +0200, Niccolo Rigacci wrote:
Do you know if it is possible to switch the scheduler at runtime?
echo cfq /sys/block/disk/queue/scheduler
At least one can do a ls of the /sys/block area
Hello Neil All ,
On Mon, 20 Feb 2006, Janos Farkas wrote:
On 2006-02-20 at 09:30:22, Neil Brown wrote:
If you use an 'internal' bitmap (which is mirrored across all drives
much like the superblock) then you don't need to specify a file name.
However if you want the bitmap on a
Hello Neil All ,
I'll bet I am going to get harassed over this , but ...
The present form (iirc) of the lilo append statement is
append=md=d0,/dev/sda,/dev/sdb
I am wondering how difficult the below would be to code ?
This allows a (relatively)
Hello Patrik ,
On Wed, 8 Feb 2006, Patrik Jonsson wrote:
Neil Brown wrote:
I always make them against the latest -mm kernel, so that would be a
good place to start. However things change quickly and I can't
promise it will apply against whatever is the 'latest' today.
If you would
Hello David ,
On Wed, 1 Feb 2006, David Liontooth wrote:
We're wondering if it's possible to run the following --
* define 4 pairs of RAID 1 with an 8-port 3ware 9500S card
* the OS will see these are four normal drives
* use md to configure them into a RAID 6 array
Would this
Hello Neil ,
On Thu, 2 Feb 2006, NeilBrown wrote:
Three patches for 2.6.lastest. All should go in 2.6.16.
One won't apply against -rc1-git5 as it fixes a bug in a patch
in -mm that hasn't quite got to -linus yes.
They are mostly little fixes. I've been doing some more testing,
Hello Neil ,
On Mon, 23 Jan 2006, Neil Brown wrote:
On Monday January 23, [EMAIL PROTECTED] wrote:
NeilBrown wrote:
In line with the principle of release early, following are 5 patches
against md in 2.6.latest which implement reshaping of a raid5 array.
By this I mean adding 1 or more
Hello David , Thank you for the idea . But ...
[EMAIL PROTECTED]:~ # mdadm --readonly /dev/md_d0
mdadm: failed to set readonly for /dev/md_d0: Device or resource busy
I think I'll try Neil's upgrade to 2.6.13 his patch to
mdadm . I'll report back if that cures my
Hello Neil , I patched all were successful . But after a
make clean ; make
I get ... Tia , JimL
..snip...
gcc -Wall -Werror -Wstrict-prototypes -DCONFFILE=\/etc/mdadm.conf\ -ggdb
-DSendmail=\/usr/sbin/sendmail -t\ -c -o Assemble.o Assemble.c
Assemble.c: In
Hello All , Off topic I know ...
I have a question not related to MD . Have you heard of
complaints about lilo overwriting partition info on disks
after the first 2 if those are in an raid1 ? Or any mentions
of lilo writing to all 16 disks causing
Hello Neil ,
On Sat, 10 Sep 2005, Neil Brown wrote:
On Friday September 9, [EMAIL PROTECTED] wrote:
Hello Neil , I patched all were successful . But after a
make clean ; make
I get ... Tia , JimL
..snip...
gcc -Wall -Werror -Wstrict-prototypes
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