Hi
I agree to Lance, so I have nothing to add. For use of motherboard and
disks,
also SCSI controller, I think there are many recomendations.
I got various systems with Asus mobos, Gigabyte mobos and Elitegroup
mobos.
All systems have one thing in common: an Adaptec controller (aic7xxx
family) an
Hi
No, I didn't tried that, but it is just the task of our pc support (at
work)
and I will ask him for it.
Thanks, Dietmar
Paul Jakma wrote:
>
> On Fri, 11 Jun 1999, Dietmar Stein wrote:
>
> I don't know exactly (until today), but I think it is a problem
> refer
Hi
I got the drives built in the arrays as the machine was shipped to us.
There were no instruction manuals and so on, so I have ask our support
of pc computers.
Thanks, Dietmar
By the way: where can I get the updates?
Drew Puch wrote:
>
> > I don't know exactly (until today), but I think it
Hi
I had similar problems on our SMP machine, too - a while ago (2 Months
or so). I got
three U2W on the system, with two raid0 connect to the first ones and
the system disks
connected to the last one.
First days (as you) everything looks quit nice, but then I got timeouts;
I tried several
patche
Hi Tom
I wonder, because I didn't recognize that linux serializes its reads
under raid (raid0).
How do you recognize this? I think, if you refer to the leds of the
drives or the disk
array (where the drives are in) it gives you no real answer, of what
linux is doing.
The facts you are discribing
Hi
As far as I know, the raidtools (or do you mean mdutils) 0.50 work like
the old
mdutils 0.41.
As I said, I am not sure, but with the command mkraid raid1 /dev/md0
/dev/sda1 /dev/sdb1...
you will get (so it works under mdutils 0.41) an automatically created
mdtab in /etc.
Also you can try mkrai
Hi
Try mkraid --really-force /dev/mdX
Greetings, Dietmar
root wrote:
>
> Will Linux allow level 1 raid to be two partitions on the same disk?
>
> I know this is not something any sane person would do, but for the dake of
>exper-menting I would like to know.
>
> I attempted it, but I get mkr
In addition to Franciscos mail, what about a raidstart after bootup and
then a mount attempt?
Greetings, Dietmar
John Maag wrote:
>
> I issued a mkraid /dev/md0 with a mdtab set up for a simple mirror. What do I
> need to do to keep the mirror active upon reboots. It seems to forget about it.
>
James O'Kane wrote:
>
> I setup a raid 5 with 5 18G disks. 3 for data, 1 for parity and one hot
> swap. This config file I used is:
>
> raiddev /dev/md0
> raid-level5
> nr-raid-disks 4
> nr-spare-disks1
> chunk-size 128
> parity-algo
Hi
I always recommend the software raids under linux, especially them built
with raidtools 0.90 and the corresponding kernel patch.
Software are most times much faster than hw raids and raidtools 0.90
give possibility to do hotswaps
without using a hotswapable controller. Booting from a raidpart
Hi
You always got two IDE controllers which are separated from each other
(even not very old boards); the IDE
controllers are "occupied" by the PCI bus system, which also controls
PCI slots and ISA bridge, also the
data flow from the controllers to the memory (DMA use).
As I said before (and I st
nce.
>
But using n-way mirrors will also increase cpu utilization during reads
-
or am I wrong? - because of the cycling process.
> <>< Lance.
>
> Osma Ahvenlampi wrote:
> >
> > Dietmar Stein <[EMAIL PROTECTED]> writes:
> > > Readperformance wil
Hi
September 1997 was a long time ago; raidtools 0.90 gives you a lot of
functionality.
The raidtab (for raidtools 0.90) offers the options of spare disks; why
don't you
have a _TRY_ on adding a disk to the raidtab?
Backing up data or using a "test box" is recommended !
Greetings, Dietmar
Sc
[EMAIL PROTECTED] wrote:
>
> On Fri, May 21, 1999 at 06:13:12PM +0200, Dietmar Stein wrote:
> > Hi
> >
> ...
> > Readperformance will only increase by using raid0 (stripe), but it will
> > not be twice times faster.
>
> Not quite true.
>
Hm, I t
0.90 - is it explained in the
documentation?
Greetings, Dietmar
Osma Ahvenlampi wrote:
>
> Dietmar Stein <[EMAIL PROTECTED]> writes:
> > Readperformance will only increase by using raid0 (stripe), but it will
> > not be twice times faster.
>
> Does the Linux RAID
Hi
If I understood you the right way, you can't understand, why the linux
box is much faster than the NT? If I am wrong, stop reading, if I am
right proceed.
1) We also have an Oracle instance running on a linux box (nearly same
configuration, except we have two raid0 - four IBM u2W disks each -
0
>
> device /dev/sde2
> raid-disk 0
>
> device /dev/sdj2
> raid-disk 1
>
> ---
>
> raiddev /dev/md2
> raid-level 1
> n
erfinderischer Zwerge, die fuer alles gemietet werden
> koennen." - Bertolt Brecht - Leben des Galilei
--
"For those about to rock - we salute you!"
Dietmar Stein, Systemadministrator UNIX/Linux
http://home.t-online.de/home/dstein2203
[EMAIL PROTECTED], [EMAIL PROTECTED]
also learnt how to build a dry stone wall :-))
> ]]
>
> > Sure, I can learn and 'test' things,
>
> ... in a real car -- yup !
>
> > but do they in any way represent a real world scenario?
>
> It's a pretty close approximation of the basics.
> Lets get people a good half way up the learning curve before letting them loose
> on real data !!
--
"For those about to rock - we salute you!"
Dietmar Stein, Systemadministrator UNIX/Linux
http://home.t-online.de/home/dstein2203
[EMAIL PROTECTED], [EMAIL PROTECTED]
t; Mike.
>
> --
>
> ==
> Mike Frisch
> Software Engineer
> Hummingbird Communications Ltd.North York, Ontario, Canada
>
>Disclaimer: I speak for myself, not my employer
--
&q
o write something that will parse /proc/mdstat and produce out
> readable by less knowledgable people...(unless something like this is already
> under development??)
>
> much appreciated,
> james blanding
--
"For those about to rock - we salute you!"
Dietmar Stein, Systemadministrator UNIX/Linux
http://home.t-online.de/home/dstein2203
[EMAIL PROTECTED], [EMAIL PROTECTED]
Hi
Kevin Wood wrote:
>
> Hey all, got a question for you. I need to build a software raid with
> RH6.0. It will be a RAID1(mirroring). I can build a raid and mount it,
> I'm
> familiar that far, but what I need to know is the following:
>
> 1. How do I mirror /usr without destroying th
enting me from actually initializing
> the array with mkraid. Try commenting out the raid initialization stuff
> in /etc/rc.d/rc.sysinit, reboot, and see if it then lets you initialize
> the array.
>
> Pax.
>
> Dave
>
> On Sun, 16 May 1999, Dietmar Stein wrote:
>
&g
> > handling MD device /dev/md0
> > analyzing super-block
> > disk 0: /dev/sdb1, 2811343kB, raid superblock at 2811264kB
> > disk 1: /dev/sdb2, 2811375kB, raid superblock at 2811264kB
> > disk 2: /dev/sdb3, 2811375kB, raid superblock at 2811264kB
> > mkraid: aborted
> >
> >
> > Thanks in advance for the help.
> > --Drew Norman
> >
> >
--
"For those about to rock - we salute you!"
Dietmar Stein, Systemadministrator UNIX/Linux
http://home.t-online.de/home/dstein2203
[EMAIL PROTECTED], [EMAIL PROTECTED]
; disk 2: /dev/sdb3, 2811375kB, raid superblock at 2811264kB
> mkraid: aborted
>
> Thanks in advance for the help.
> --Drew Norman
--
"For those about to rock - we salute you!"
Dietmar Stein, Systemadministrator UNIX/Linux
http://home.t-online.de/home/dstein2203
[EMAIL PROTECTED], [EMAIL PROTECTED]
, Dietmar
--
"For those about to rock - we salute you!"
Dietmar Stein, Systemadministrator UNIX/Linux
http://home.t-online.de/home/dstein2203
[EMAIL PROTECTED], [EMAIL PROTECTED]
d write errors, which increase from
>week to week.
> >
> > Greetings, Dietmar
> >
> > >- Ursprüngliche Nachricht -
> > >Absender: [EMAIL PROTECTED]
> > >Betreff: Re: Swap on raid
> > >Empfänger: Dietmar Stein
> > >Kopie-Empfänger: [EMAIL PROTECTED]
:
>
> On Mon, May 10, 1999 at 07:26:53PM +0200, Dietmar Stein wrote:
> > Hi
> >
> > At work we got much HP-Workstations and -Servers; everyone got a
> > swap-partition which is of same size as physical memory (or even
> > bigger).
> hp-ux uses swap partitions as
ndancy; but isn't it the same
> > if you do a swapoff -a or swap-disks dies on a system?
> > What I have in mind is the thing, that the system should not swap
> > at all, so that it is necessary to have as much memory (RAM) as
> > possible.
--
"For those about to rock - we salute you!"
Dietmar Stein, Systemadministrator UNIX/Linux
http://home.t-online.de/home/dstein2203
[EMAIL PROTECTED], [EMAIL PROTECTED]
ne:
> Let us never negotiate out of fear, but let us never fear to negotiate.
> -- John F. Kennedy
--
"For those about to rock - we salute you!"
Dietmar Stein, Systemadministrator UNIX/Linux
http://home.t-online.de/home/dstein2203
[EMAIL PROTECTED], [EMAIL PROTECTED]
ing up /home and repartitioning, or you wait for
> Linux LVM, rebuild your system using LVM and then just enlarge and shrink
> partitions as a snap!
>
> ;)
>
> Cheers,
> Giulio
--
"All we need is much more Sex, Drugs and Rock'n'Roll"
Dietmar Stein, Systemadministrator UNIX/Linux
[EMAIL PROTECTED], [EMAIL PROTECTED]
supports partition up to some terabytes.
>
> Kind regards,
> Christian Braun
--
"All we need is much more Sex, Drugs and Rock'n'Roll"
Dietmar Stein, Systemadministrator UNIX/Linux
[EMAIL PROTECTED], [EMAIL PROTECTED]
t;
> Hi all --
>
> Anybody knows if linux can be installed on a HP Netserver (LH3) machine
> with RAID-5 disks? Thanks.
>
> regrds, ks.
--
"All we need is much more Sex, Drugs and Rock'n'Roll"
Dietmar Stein, Systemadministrator UNIX/Linux
[EMAIL PROTECTED], [EMAIL PROTECTED]
sk?
>
> I've read the Software-RAID HOWTO over and over again, but I am still lost?
> Did I start this process all wrong or could it be something simple?
>
> Thanks for any help.
> [EMAIL PROTECTED]
--
A guess may be one solution but not the only one ;-)
Dietmar Stein, Systemadministrator UNIX/Linux
[EMAIL PROTECTED], [EMAIL PROTECTED]
anks!
>
> Michael Rothwell
> Director, Internet Application Development
> InterLan Technologies
> 111 Corning Road #150
> Cary, NC 27513
> v: (919) 852-0690
> f: (919) 852-0501
> e: [EMAIL PROTECTED]
--
A guess may be one solution but not the only one ;-)
Dietmar Stein, Systemadministrator UNIX/Linux
[EMAIL PROTECTED], [EMAIL PROTECTED]
a bit more then I want to spend ($500 ish), and
> > only has one external U2 connector.
> >
> > Anyone out there have any better solutions and/or real experience?
> >
> > Oh btw I'm VERY happy with our dual channel buslogic flashpoint UW, I'll
> > post bonnie's in the next message.
> >
> > --
> > Bill
> >
> >
--
A guess may be one solution but not the only one ;-)
Dietmar Stein, Systemadministrator UNIX/Linux
[EMAIL PROTECTED], [EMAIL PROTECTED]
--------
> Y2K. We're all gonna die.
--
A guess may be one solution but not the only one ;-)
Dietmar Stein, Systemadministrator UNIX/Linux
[EMAIL PROTECTED], [EMAIL PROTECTED]
dev/hdc5
> raid-disk 1
> #
> #
> # /dev/hdx3 = /usr
> #
> raiddev /dev/md2
> raid-level 1
> nr-raid-disks 2
> nr-spare-disks 0
> chunk-size 4
> persistent-superblock
back into the array as mirror 0 as it should be.
>
>Something of a raid recovery howto would be a good thing.
>
> Michael McLagan
>Linux Online!
--
A guess may be one solution but not the only one ;-)
Dietmar Stein, Systemadministrator UNIX/Linux
[EMAIL PROTECTED], [EMAIL PROTECTED]
to me. I can hotadd or hotremove a disk on linux with sw RAID
> and a non-hot swappable capable controller, maybe this is another feature
> of sw RAID over hw RAID?
>
> greetings,
>
> *---(*)---**********-->
> Francisco J. Mo
Original Message from [EMAIL PROTECTED] (Dietmar Stein) at
> 4/21/99 12:45 am
> >I send two disks back to my customer, because there were damaged and got
> >timeouts all the day under Linux.
> >Our customer called me back same day and ask me what is wrong with
> >disks? He had
and I've mounted my 209 GB array
> :^) (with room to add another 105 GB)
>
> Now I need some sort of benchmarking software to make sure its stable by
> stress testing it.
>
> > -Original Message-
> > From: Dietmar Stein [mailto:[EMAIL PROTECTED]]
> > S
5 0.0 0.0 0 0 ? SW 07:31 0:00 (md_thread)
> ...
>
> [root@visitors Documentation]# fdisk /dev/sdh
> ...
> Disk /dev/sdh: 255 heads, 63 sectors, 4492 cylinders
> Units = cylinders of 16065 * 512 bytes
>
>Device BootStart End Blocks Id System
> /dev/sdh1 1 4492 36081958+ fd Unknown
--
We all have lack of knowledge...
Dietmar Stein, Systemadministrator UNIX/Linux
[EMAIL PROTECTED], [EMAIL PROTECTED]
elp would be greatly appreciated. If more
>info is needed, let me know. Thanx
>
> Jason
--
We all have lack of knowledge...
Dietmar Stein, Systemadministrator UNIX/Linux
[EMAIL PROTECTED], [EMAIL PROTECTED]
I want to set up a box for testing with raw devices and raid0 under
kernel 2.2.3 or 2.2.5 with raidtools 0.90.
Can anybody point me to the URL for documentation of raw devices,
patches and tools?
Greetings, Dietmar
--
We all have lack of knowledge...
Dietmar Stein, Systemadministrator UNIX
ination in the adaptec bios (default auto)
> 2 different 68 pin cables (not cheap)
> tried the drive at the end of the chain without a terminator (online docs at
> ibm website says this shoud be valid)
>
> thanks
> charles
>
> -
> To unsubscribe from this list: send the line "unsubscribe linux-scsi" in
> the body of a message to [EMAIL PROTECTED]
--
We all have lack of knowledge...
Dietmar Stein, Systemadministrator UNIX/Linux
[EMAIL PROTECTED], [EMAIL PROTECTED]
to this list)? I'm considering Linear or RAID-0; is LVM
> > > an alternative and where can I get more info, please?
> > >
> > > Regards: Jim Ford
> > >
> > >
> >
>
> James ([EMAIL PROTECTED])
> It doesn't run on an open source platform,
> therefore it, by definition, does not matter.
--
We all have lack of knowledge...
Dietmar Stein, Systemadministrator UNIX/Linux
[EMAIL PROTECTED], [EMAIL PROTECTED]
Francisco Jose Montilla wrote:
>
> On Sat, 17 Apr 1999, Dietmar Stein wrote:
>
> Hi,
>
> > Hm , I have not the possibilty to set up a hw-raid and mostly not the
...
> > at roundabout 5 MB/s.
>
> mmm... None of any HP machine I've ever m
ou don't know.
> money isn't our god, integrity will free our souls" - Max Cavalera
--
We all have lack of knowledge...
Dietmar Stein, Systemadministrator UNIX/Linux
[EMAIL PROTECTED], [EMAIL PROTECTED]
. bonnie,
> iozone) and application tests (i.e., nfs, etc...) but i'll need the
> collaboration and suggestions of all people interested.
>
> Greetings,
>
> *---(*)---**-->
> Francisco J. Montilla Systems & Network administrator
> [EMAIL PROTECTED] irc: pukkaSevilleSpain
> INSFLUG (LiNUX) Coordinator. www.insflug.org - ftp.insflug.org
--
We all have lack of knowledge...
Dietmar Stein, Systemadministrator UNIX/Linux
[EMAIL PROTECTED], [EMAIL PROTECTED]
EMAIL PROTECTED] irc: pukkaSeville Spain
> INSFLUG (LiNUX) Coordinator. www.insflug.org - ftp.insflug.org
--
We all have lack of knowledge...
Dietmar Stein, Systemadministrator UNIX/Linux
[EMAIL PROTECTED], [EMAIL PROTECTED]
ance to software raid.
> Has anybody written comprehensive documentation like "Raid on Linux"
> and compare different solutions.
>
>
> Ramana
--
We all have lack of knowledge...
Dietmar Stein, Systemadministrator UNIX/Linux
[EMAIL PROTECTED], [EMAIL PROTECTED]
seem to patch the thing right.
>
> Please help.
> Kjetil
--
We all have lack of knowledge...
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[EMAIL PROTECTED], [EMAIL PROTECTED]
as sent using Endymion MailMan.
> http://www.endymion.com/products/mailman/
--
We all have lack of knowledge...
Dietmar Stein, Systemadministrator UNIX/Linux
[EMAIL PROTECTED], [EMAIL PROTECTED]
> - Did you marked the raid partitions as type 'fd'? (stop the raid
> before doing that)
I asked this question some time ago, but get no answer: how to mark them as
type fd?
Can you send the whole command line?
Thanks, Dietmar
Hi Alex
I have tested with raidtools 0.90 also and had a similar problem. Also
there were a lot of similar questions on the list in the past.
Try to make a new ext2-fs on the disk (maybe on another system) and connect
it again; as far as I remember, the raidtools mark a bad disk and recognize
it
Francisco Jose Montilla wrote:
> Greetings to everybody...
>
> I've been setting up linux RAID (mainly 0, 1 or 5) for a while,
> always on servers with UWSCSI discs, kernel 2.0.36, and I'm willing to
> discuss performance issues, interchange opinions and such.
...
> I'm
As far as I know there are only raid0145-patches available for the
0.36-kernel; try upgrading the kernel to 2.0.36 and get the latest patches
www.XY.kernel.org or any place you like (the lastest I think is
raid0145-19990309-2.0.36). Get also the 0.90 raidtools. Patch the kernel
again and install t
Laszlo Vecsey wrote:
> In the original docs or howtos, mention is made of being able to partition
> your /dev/sdx device first, or just using it as a raw device.. which is
> what I've done. Now that detection based on the partition type is
> available though, its a little unfortunate for those of
Dave Wreski wrote:
> Hi all. I've read the most recent HOWTO, and still have a few questions. I plan
> to implement RAID-1 on a 586 with two 6G IDE disks. Most files are greater than
> 4M, if that makes a difference.
I don't think so.
> If I want to experiement with different chunk sizes, mus
Hi,
I followed your discussion a little bit, having a question to the fdisk: what
did you mean by "changing the partition type for sda2 to fd"?
Is it an option to fdisk or does it mean to "fdisk" the drive again (building a
"new" partition sda2)?
Dietmar
Stephen Denny wrote:
> > Check if you'v
Hi Paul
Maybe I'm also wrong, but I think, that the system tries to initialize md3
before having initialized md1 and md2. Let me explain my idea:
The system comes up, recognizes the md1, starts the process to initialize it
and goes forward, recognizing that there is a md2 and does the same as bef
pilation of the kernel doesn't help
either.
Any suggestions?
Dietmar
Dietmar Stein wrote:
> Hi Steve,
>
> as I recognized so far, you haven't patched the kernel yet. Am I right?
Hi Steve,
as I recognized so far, you haven't patched the kernel yet. Am I right?
If so,
you have to patch the kernel with the patch for the new raidtools. You
will
get it from www.de.kernel.org for example. There is one for kernel
2.0.36 and
2.2.3. Add the patch to the kernel, recompile it and r
Thanks Oliver,
I better should have a look at the documentation of the newest kernel I
use. To explain, I got two systems: one for "surfin'", one for experimental
things. The "surfin'"-sys is a 2.0.35, which documentation does'nt contain
that information.
I have looked at the 2.2.3-doc and found
Hi Ramon,
You gave me the advice to read the documentation and I did. But I can't
find out, how to create the e.g 96th device...
To be more specific, I wanted to know the maximum number of disks the
system will be able to serve. If the number is also 128, please tell me
how to create such a devic
Hi Adam,
thank you for your hint - I better should read the man-pages of certain commands
more often - THAT´S IT !!!
At last there is one question left:
Procinfo (version 13 on my system) only shows the information of four disks - I
got twelve to watch. Is there
a solution, too?
By the way, I t
Hi David,
thanks for your answer and also thanks to Matthew and Adam for their hints.To
answer your
questions:
We - better I - use SuSE-Linux 6.0 which contains the (SuSE-)patched kernel
2.0.36 on a SMP-system. The technical data is:
a pair of PII-400, Asus P2B-DS mainboard, 512 MByte of RAM, th
Hi guys,
not really the topic - I know - but I read that the maximum size of one
file is currently 2GB on linux like on other operating systems (e.g
HP-UX supports filesizes above 2GB but HP does not take support for it).
Is there a way to increase the size for testing? I was looking for a
param
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