The cynic in me is wanting to break free. Has your company written its own
software-raid for linux? If so, why??
..Brian
At 10:57 14-06-00 -0400, Stephen O'Mohany <[EMAIL PROTECTED]> wrote:
>Hi All,
> The company that I work for, American Megatrend has decided to
One or the other is needed. I like autodetect myself.
Brian
Ryan Mack wrote:
>
> The subject says it all. Looking at the 2.4 Config.help made it seem like
> you didn't need CONFIG_MD_BOOT in addition to CONFIG_AUTODETECT_RAID to
> boot from a RAID partition. I&#x
Yes, this works well in 2.2. I have LVM running over a 4
disk raid 5. I haven't gotten this working in 2.3 yet however. It
looks like the two drivers aren't sharing the request queue correctly.
Brian kress
[EMAIL PROTECTED]
todetect, no problem at
all. The kernel will find the disks no matter where you
plug em in.
You might want to update /etc/raidtab for future use,
though.
Brian Kress
[EMAIL PROTECTED]
Anyone have any idea when a working implementation
of raid 5 will be out for 2.3.x? There's a patch against
2.3.99prex-y at http://www.redhat.com/~mingo/...,
but that doesn't seem to include the raid5.h file,
among other things.
Brian Kress
[EMAIL PROTECTED]
ostart sdb1 failed
>non-persistent superblock
>
>Is there a way of fixing this problem ?
I think I ran something like "mkraid --upgrade"... One of the tools, I
think raidstart, told me to do so. I did, and it worked magically. And they
say developers don't document
Today I upgraded my 0.42 raid to 0.90 on a production server. The
difference is astounding! Well done to all involved. It looks like Software
raid is getting close to the point of making hardware raid redundant (but
not in a good way :)
..Brian
Init Systems - Linux consulting
(031) 765-5269
as ReiserFS
as it
is implimented at a higher level.
Brian
>> Under
>> , the file is labeled "dangerous". But I can't use
>> the 2.2.11 code under kernel.org 'cause 2.2.11 has that nasty little TCP
>> memory leak bug
>
>Stay away from the ``dangerous'' code.
So should I use the older raid
ry for repeating
the question, but I got two confusing answers :-)
Regards,
Brian Jonnes
Init Systems - Linux consulting
(031) 765-5269 (082) 555-7737 [EMAIL PROTECTED]
file is labeled "dangerous". But I can't use
the 2.2.11 code under kernel.org 'cause 2.2.11 has that nasty little TCP
memory leak bug....
Thanks in advance,
Brian Jonnes
Init Systems - Linux consulting
(031) 765-5269 (082) 555-7737 [EMAIL PROTECTED]
X++ R* !tv b++ DI++ D++ G+ e* h* r y+ z+
> --
U2W can actually be LVD as well. My Mylex eXtremeRAID 1164 card is U2W
and LVD so just saying U2W is for sure LVD or SE is wrong. Read the
manual or read the specs on the manufactures web site.
--
Brian D. Haymo
everest kernel: md6: no spare disk to reconstruct array! -- continuing
in degraded mode
Mar 19 02:30:06 everest kernel: md5: no spare disk to reconstruct array! -- continuing
in degraded mode
--
Brian Lavender
http://www.brie.com/brian/
I am trying to apply the raid patch to the 2.2.14 kernel
and I get this error. What is wrong?
brian
everest:/usr/src/linux# patch -p1 < raid-2.2.14-B1.patch
patching file `init/main.c'
Hunk #2 FAILED at 488.
Hunk #3 succeeded at 940 with fuzz 2 (offset 12 lines).
Hunk #4 FAILED at 143
nload, and it worked!
$ cd /usr/src
$ patch -p0 < raid-2.2.14-B1
Watch the way you get the patch!
brian
--
Brian Lavender
http://www.brie.com/brian/
On Wed, Mar 08, 2000 at 05:38:29PM -0800, Michael wrote:
>
> Consider that the poor little controller chip on the raid card is
> vastly underpowered for what you are asking it to do in raw IO speed
> plus handling all the raid calculations. Compare that to the excess
> number crunching capacit
On Thu, Mar 09, 2000 at 12:44:32AM +0100, Jakob Østergaard wrote:
>
> You don't _think_ you would see better performance ?
>
> I'm pretty sure you will see better performance. But on the other
> hand, with a large number of disks, sometimes the hot-swap
> capability comes in handy, and sometime
On Wed, Mar 08, 2000 at 09:14:02PM +0100, Holger Kiehl wrote:
>
> Why don't you try SW raid?
>
The Mylex controllers I have don't do SCSI, it presents a block
device. I think I'm going to try these drives on my NCR controller
just to get a base-line on what kind of write performance they are
ca
On Wed, Mar 08, 2000 at 06:52:52PM -, Matthew Clark wrote:
> Hmm.. well you may think 26Mb/Sec is poor for writing.. I would be drooling
> at such vast speeds..
>
> Would you mind telling me how you set up your raid array (i.e. policies) and
> filesystem (inodes, block sizes, strides etc)...I
tthew Clark wrote:
> Under what circumstances are you "only" achieving 26MB/s - what file size?
> was it random or sequential?
>
> > -Original Message-
> > From: [EMAIL PROTECTED]
> > [mailto:[EMAIL PROTECTED]]On Behalf Of Brian Pomerantz
> > Se
Well, I know I'm not getting the performance I want out of the Mylex
DAC1164P. I was only getting 26MB/s on write throughput with 2 RAID 5
chains (5+p). I'm certain that either the card is not optimized, the
driver is not optimized, or both. One of the things that we have
found here at LLNL is
I'm in the middle of testing this controller on an ES40 (4 CPU Alpha).
I should get some numbers next week. So far with a 4+p RAID 5 I'm
seeing about 17MB/s write performance with a single chain. I think
these are only 7200 RPM drive. I don't really care about read
performance but that was up a
The correct url for mingo's raid patches is:
http://people.redhat.com/mingo/raid-patches/
brian
On Wed, Mar 01, 2000 at 08:35:35AM -0500, Brian Kress wrote:
> Rainer Krienke wrote:
> >
> > Hello,
> >
> > I'd like to set up a simple raid 1 metadevice co
ply? Can anyone please tell
> me? I really found no suitable information that would tell about this.
Either use your current kernel with that patch or get 2.2.14
and grab the patch at http://www.redhat.com/~mingo/raid.
Happy RAIDing!
Brian
things to
truly understand what is required in the kernel and as a module, but it
is certainly great to see it work. Thanks for the assistance. You and
everyone on the list have been truly helpful.
brian
On Wed, Mar 01, 2000 at 01:43:14AM +, Dominick Layfield wrote:
> Brian,
>
> It l
. Did I miss something on the compile?
brian
$ dmesg
Linux version 2.2.14 (root@mammoth) (gcc version 2.7.2.3) #6 Tue Feb 29 08:55:09 PST
2000
Detected 400920855 Hz processor.
Console: colour VGA+ 80x25
Calibrating delay loop... 799.54 BogoMIPS
Memory: 128228k/131008k available (816k kernel code
device/dev/sdc5
raid-disk 1
fig 2:
mammoth:/# mkraid /dev/md0
unrecognized option peristent-superblock
detected error on line 9:
peristent-superblock1
mkraid: aborted, see the syslog and /proc/mdstat for potential clues.
brian
--
Brian
.conf? Below is what I currently have
brian
$ cat /etc/raid/raid1.conf
raiddev /dev/md0
raid-level 1
nr-raid-disks 2
nr-spare-disks 0
device /dev/sda9
raid-disk 0
device /dev/sdb9
raid-disk
I have a virgin system. I have two 9 Gig drives and Debian GNU/Linux.
I want to create raid1 of /var and /home
What's the best way to go about this?
The software-RAID Howto is very _unclear_.
brian
--
Brian Lavender
http://www.brie.com/brian/
temporary location, then restoring
it to the
/dev/md0 /home
mount point later on. I succeeded at creating raid1 of /home with /dev/sda10
and /dev/sdb10, but I had to tar up all the data, create the raid, and then
untar it all back onto the raid1 mount point?
brian
--
Brian Lavender
http
eset or other catastrophic even happens, I was under the
impression that one of the disks had to be chosen as the "original"
and a copy made to the other disk to resync them.
Is this essentially what the re-sync daemon does ?
Brian
in ?
Why did my box reset ?! Very scary...
Once I'm sure the system is stable I'm going to try and do it again :-)
Brian
A fix, possibly, is to look at using grub instead of lilo. Since it
doesn't write the kernel params into the MBR the way lilo does it may vary
well allow for longer strings passed to the kernel.
--
Brian D. Haymore
University of Utah
Center for High Performance Computing
155 South 1452 Ea
The Parallel Virtual File System can do this. It does lack good ability
right now to deal with failure of one system though. It is ment for for
scratch space.
--
Brian D. Haymore
University of Utah
Center for High Performance Computing
155 South 1452 East RM 405
Salt Lake City, Ut 84112-0190
Hi here is my account of setting up raid-1 over an existing system.
Setting up Raid-1 over an existing system
Brian Denheyer
[EMAIL PROTECTED]
Much of this information can be found in both the "new" raid how-to
http://ostenfeld.dk/~jakob/Software-RAID.HOWTO/
and the disk upgrad
cal
they appear in fdisk with different C/H/S's. I'm thinking this is why
I keep getting the messages about overlapping disks when I invoked
mkraid /edv/md1.
Anybody have any ideas about this ?
BTW Has anyone noticed that the linux raid archives are FUBAR after
about nov 99 ??
Thanks
Brian
Gregory Leblanc wrote:
>
> "Brian D. Haymore" wrote:
> >
> > Alessandro Rubini wrote:
> > >
> > > > Not quite. I hear from people who are using what they consider to be
> > > > "stable" Gnu/Linux systems, namely running Red
unning the same RAID or NFS patches in their kernel. So
which distribution should the HOWTOs follow? The answer is obviously
that we shouldn't shape things after one dist in particular period. So
I see it as little and expected effort for the person begining to do
their homework as best they
http://www.redhat.com/~mingo/raid-2.2.14-B1
Brian
Thomas Gebhardt wrote:
> Hi,
>
> just looked for the raid for 2.2.13 or 2.2.14 in the kernel archive.
> The last patches that I have found are for 2.2.11 and at least one
> hunk cannot be applied to the newer kernel sources
I have the eXtremeRAID 1164 card and have been using it for over 6 months
now under linux with no problems at all. It's performance is very very
good too.
--
Brian D. Haymore
University of Utah
Center for High Performance Computing
155 South 1452 East RM 405
Salt Lake City, Ut 84112-0190
our units fast is the PCI bus which is 133Mbs and DMA directly to
RZ> drives.
It is however, still unclear whether it's safe to run reiserfs on a
raidzone. I have a question about that out to Colin.
Brian
it might be more than what you're looking for (hardware raid w/
> hot swap capability)
Please correct me if I'm wrong, but I'm under the impression that
raidzone's raid is done by the host computer.
Brian
I think Andrea Arcangeli has a fix for this. Search the lkml
archives for something on set blocksize. It's an incremental
patch over RAID 0.90.
Brian
>
> Hi,
>
> I just wanted to warn everybody not to use raid0145-19990824-2.2.11 together with
>kernel
>
ve me an authoritative answer or at least a hint as to where I
miscalculated?
-kral
==
Brian M. Kral [EMAIL PROTECTED]
REALM Information Technologies
linux/daemons/raid/alpha
Brian
Innovation Strategies wrote:
>
> Hello everybody.
> I have recently installed a RAID1 system in a RedHat6.1 platform.
> It seems like it work ok, but when I try install another kernel a kernel
> panic results.
>
> This new kernel (2.2.13) sup
n swapspace is irrelevant after a shutdown,
> so why this should bother?
Swap is corrupted during hot reconstruction. Unclean shutdown is
one way to cause this. After system comes back up, this is going on.
Then (live system) swap will be corrupted.
Brian
nsfer resumes.
This is of course not the expected result. Anyone have any ideas?
Thanks in advance,
Brian
In message <[EMAIL PROTECTED]>, "Stanle
y, Jeremy" writes:
>Ummm... I hate to sound like a broken record, but try the latest stable
>kernel version. 2.2.11 had f
ine to panic by doing this
multiple times in the middle of the copy.
Any ideas?
Brian
---
Brian C. Huffman
Associate Systems Engineer - Information Resources
DuPont Pharmaceuticals Company
Little Falls 1, Suite 215 / Room 205
2711 Centerville Road
Wilmington, DE 19808
/sec
- IBM 9gig U2W: 17.5meg/sec
I tried the IBM 4gig with each of the other 2 drives and still got
10.5meg/sec (hdparm).
Brian Macy
I am getting on my RAID5 array of 8 7200RPM seagate barracuda 18.2GB
drives around 30MB/S writting and 49MB/S Reading
--
Brian D. Haymore
University of Utah
Center for High Performance Computing
155 South 1452 East RM 405
Salt Lake City, Ut 84112-0190
Email: [EMAIL PROTECTED] - Phone: (801
Mylex does from my tests. Mylex does very well in fact.
--
Brian D. Haymore
University of Utah
Center for High Performance Computing
155 South 1452 East RM 405
Salt Lake City, Ut 84112-0190
Email: [EMAIL PROTECTED] - Phone: (801) 585-1755 - Fax: (801) 585-5366
On Thu, 11 Nov 1999, Matthew
ent to 2.2.11+raid.
It turned out to be the tcp memory leak described at
http://www.linux.org.uk/VERSION/relnotes.2211.html.
Brian
tware is the way to go. If you need the reliability of
hardware raid, then the Mylex card was the way to go.
I have numbers for all my tests that I could dig up if wanted.
--
Brian D. Haymore
University of Utah
Center for High Performance Computing
155 South 1452 East RM 405
Salt Lake City, Ut 84112
bru2000 is another. Not sure on the URL though.
--
Brian D. Haymore
University of Utah
Center for High Performance Computing
155 South 1452 East RM 405
Salt Lake City, Ut 84112-0190
Email: [EMAIL PROTECTED] - Phone: (801) 585-1755 - Fax: (801) 585-5366
On Fri, 22 Oct 1999 [EMAIL PROTECTED
On Thu, 21 Oct 1999, Thomas Seidel wrote:
> I'm sorry this is a bit off-topic, but large raid sets need big backups ;-)
> My HP SureStore DAT24 stops after writing 12 GB of data to a DDS-3 tape. I
> suspect there must be something wrong with the compression. To verify this I
> need some additio
Can you direct me to where I can get this lilo.raid1 patch?
Thanks,
Brian
- Original Message -
From: James Manning <[EMAIL PROTECTED]>
To: Linux-Raid <[EMAIL PROTECTED]>
Sent: Thursday, October 14, 1999 9:34 AM
Subject: Re: Lilo and booting with failed first disk
duplicated. Anybody here have an
idea how difficult that would be? Could it be done in a fs-independent way?
Does SCO's Sentinel take one of these approaches, or a completely
different one?
Brian
also
another which I cant remember.
Brian Murphy
ually 0)
with the values appropriate to your new device. If you added it
in the same position as a removed device then you need to run the
remove-single-disk with the same values before you run this command.
This works with my hot plug setup to spin up and make the device
accessible to the system.
Brian Murphy
... can play with things on a running system.
So basically I see Software RAID as more flexible but possibly more
volatile. Performance for me was about the same if you disregard CPU
use.
Brian Macy
had tested their distribution and
certified it on the Netfinity machines but there were not many details.
I have sent a question off to SuSE asking for these details and I will
post to the SMP and Raid groups when I get a response from them.
SuSE are at http://www.suse.com.
Brian Murphy
happening?
Brian Murphy
76 driver disables
the retries (perhaps after 5 or so) so the computer continues running on
the other disk
instead of hanging on the redundant failed one.
I am sure this was handled properly (from a raid point of view) in the
2.0.36 kernel + raid patch.
regards,
Brian Murphy
n the card?
Brian Macy
Geof Goodrum wrote:
>
> On Tue, 14 Sep 1999, Chad Schmutzer wrote:
>
> > The system in question is a Dell PowerEdge 6300 with 4 processors.
> > I have the Dell OEM AMI MegaRAID 428 controller configured for RAID 5.
> >
> > When I boot with a
Post your /etc/raidtab
You may have a spelling oops hidden in there, according to the error message :)
"Stoica, Dragos" wrote:
> Hi!
> I'm trying to create a RAID volume in linear mode from two 18Gb partitions
> on different HDD's. I followed the instructions in Software RAID HOWTO and I
> al
well, all my problems were due to my lack of knowledge on how to
use a patch heheh
I used the command line posted here, recompiled, made sure my raidtools
were the same, and away she went!! :)
Thanks all for your suggestions!!!
yep, raidtools-19990824-0.90.tar.gz
But, the patch went cleaner using your command line (I personally haven't used
a patch in yonks)...lesseee what happens now :)
Mike Frisch wrote:
> > As it stands now I am sitting at kernel 2.2.11, which I patched with
> > raid0145-1999084-2.2.11.
>
> Are yo
Well, I've taken all the suggestions out there and tried various
things...
As it stands now I am sitting at kernel 2.2.11, which I patched with
raid0145-1999084-2.2.11.
Still the exact same problems...aborts, with no messages in dmesg,
/var/log/messages, nor /proc/mdstat. With any drive combo.
OK, no matter what I do or with any combo of drives I get this.
I am running Mandrake 6.0 w/ kernel 2.2.12 (tried 2.2.9) with MD support and
raid1 compiled in.
Tried the mandrake rpm raid tools and raid tools 19990824
The /etc/raidtab is exactly like the howtos and examples are.
I am trying to
d.
> Did you compile raid support into your kernel?
MD is compiled in. RAID0 is a module... I tried manually loading the
module. I do have RAID0 working perfectly (well almost) under 2.2.10-ac4
and several kernels before that.
> Look at http://ostenfeld.dk/~jakob/Software-RAID.HOWTO/
> to get the new howto file.
Thanks... I'll take a look.
Brian Macy
ID0 partitions with
the latest kernels I'd really appreciate it (what raidtools, what
commands, can I use my 0.50 RAID0 partitions with new tools, kernel
patches???). Thank you.
Brian Macy
t;
> The opinions expressed herein do not necessarily
> represent those of Trend CMHS or Trend Foundation.
>
>"I program my homecomputer; beam myself into
> the future." --Kraftwerk, 1981
>
> > --
> > From: Brian Murphy[SMTP:[EMAI
>From: Robert Purdy <[EMAIL PROTECTED]>
>Does anyone know how far ext3 is off? Also I heard SGI had released thier
>code for journaling? Is this to be adopted into ext3?
Well there was a discussion about this on linux-kernel about a month ago.
AFAICT, there's work being done by Stephen Tweedie
when the machine
comes up.
Voila, your'e running on raid root!
Brian Murphy
Thomas Seidel wrote:
> You're right. LILO doesn't like to install itself to a root raid1 partition
> (LILO: "Sorry, don't know how to handle device 0x0900"). On the other hand,
> the
, I can't find it. Thanks.
Check the new version of mkswap with the -v1 parameter. It does work to
create swap spaces larger than 128MB, and the 2.2.x series kernels will
use them.
I've created 256MB and 512MB swap spaces and it works.
Brian
CPU K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU
/sec %CPU
2000 15413 75.3 24303 20.5 11225 21.4 26140 97.1 47337 31.2
416.7 3.8
--
_______
( )
) Brian D. Haymore, Systems Administrator (
( Center
> On Thu, 8 Jul 1999, Brian Leeper wrote:
> > If the drives are the same size, the following command works very well to
> > copy a partition table from one to the other:
> >
> > dd if=/dev/sda of=/dev/sdb bs=1024 count=5
> I am curious to know if this can help in c
he count needs to be 5 (I think count=1 will work), but
after you do that, run fdisk /dev/sdb and write the partition table to
disk so it'll force the kernel to re-read the partition table for that
drive.
Brian
Adaptec controllers.
> The drives in question are actually U2W drives, but it was my
> understanding that the aic78xx driver doesn't yet support the 80MB/s
> transfer rates. True, or not?
I don't think that's true--the aic78xx driver prints out "80mb/sec" for
LVD drives when it scans the bus.
Brian
t to 1, thus destroying your data.
>
>
> Bill Anderson
> >
> > --kelvin
>
-----
Brian Feeny (BF304) [EMAIL PROTECTED]
318-222-2638 x 109 http://www.shreve.net/~signal
Network Administrator ShreveNet Inc. (ASN 11881)
;
> --
> Luca Berra -- [EMAIL PROTECTED]
> Communications Media & Services S.r.l.
>
-----
Brian Feeny (BF304) [EMAIL PROTECTED]
318-222-2638 x 109 http://www.shreve.net/~signal
Network Administrator ShreveNet Inc. (ASN 11881)
ance
>Larry Dickson
>Land-5 Corporation
>
-----
Brian Feeny (BF304) [EMAIL PROTECTED]
318-222-2638 x 109 http://www.shreve.net/~signal
Network Administrator ShreveNet Inc. (ASN 11881)
formation on what to do with your raids after upgrading.
So basically if anyone has any idea how to upgrade these older raids, that
would be much appreciated. I did subscribe to the list right now, but I
didn't get my confirmation back yet, so if you could email me as
I thought
I heard someone say that they had gotten an upgrade from IBM and
everything worked fine after that. We're buying quite a few IBM
DCAS-series LVD drives at work, and have had no trouble with them, when
connected to an AIC-7890 onboard controller.
Brian
acket that's designed for it and has the required
circuitry to make it safe (ie, so that the "trash" doesn't make it onto
the bus when you insert or remove a drive), then I don't see what the
problem is.
Brian
another feature
> of sw RAID over hw RAID?
About the only issue I can think of is that of electrical problems when
hot adding/removing a SCSI hard drive from the bus. There are companies
who make removable drive brackets that add the circuitry required to make
this safe.
Brian
is that if they fail, you'll either
be sending the motherboard back or learning how to how-swap BIOS chips :)
Brian
rnels, not the 2.0.x kernels, correct?
Thanks,
Brian LeeperUnix Systems Engineer
digitalNATION http://www.dn.net
v 703-642-2800 f 703-642-0261
e seen lately involved a bunch of
bad sectors--it's been a very long time since I've seen an IDE drive that
had failed in a manner that it couldn't be detected on the IDE bus.
Brian
inux kernel. Once you do this, they'll
run Linux decently.
I prefer ASUS motherboards, myself.
Brian
is not installed--this will enable Linux to read the drive
parameters directly from the drive, without the BIOS translation (how else
do you end up with 255 heads??) getting in the way.
Brian
;s also a memtest86 utility that compiles under Linux to produce a
disk you can boot your system with and test the memory--I've find some bad
memory with that before.
Compiling a kernel a bunch of times is also a good way to test if you've
got bad memory.
Brian
nator at one
end.
(1) Seagate CTT8000 TR-4 SCSI tape drive, connected to the narrow channel
on the motherboard
Brian
ines
which were set up by someone who didn't quite understand IDE..
Brian
? (hey, I already have in my own small way, see my RAID1 cookbook of
I found a post to usenet with Dejanews describing the process--that's the
only way I was initially able to find out how to make root raid work.
Brian
I've done a few mirrors with EIDE UDMA drives. It seems to be MUCH faster
to resync an array when the drives are on different channels. Two 6 gig
drives were going to take 20 minutes to resync when on the same channel,
but only 12 minutes when on different channels.
Brian
On Mon, 18 Jan
t I can support with a custom kernel, including root raid
devices, simply by making a filesystem, mounting it, and untarring my
installation on it.
Such a setup also makes it easier to fix broken Linux machines, since you
can boot them with a single disk and have every tool you could possibly
need at your disposal.
Brian
On Mon, 4 Jan 1999, Otis Gospodnetic wrote:
> Hello,
>
> I am having some stability problems with the following LINUX system
> and would really appreciate some advice.
> 3Com 3c509 NIC (I couldn't keep it running for more than an hour with a
> 3c905)
I try to stay away from 3com NICs--have h
On Fri, 18 Dec 1998, Carlos Barros wrote:
> > Isn't there an ext2 filesystem resizer utility that comes with Partition
> > Magic and was supposed to be GPL'ed at some point?
>
> for plain ext2 partition yes but we are talking about raid partitions.
I didn't think there would be any differ
of struct partition found in genhd.h.
Hope that helped. Sorry if it was a little off topic.
Brian Geisel
Microlite Corporation
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