On Thursday, October 23, 2003, at 11:02 AM, Boulytchev, Vasiliy wrote:
If I understand RAID, linux doesnt know about you having raid, or does
it? Dont you build RAID 0,1,5 on the controller itself?
In the case of hardware RAID, yes, the controller has knowledge of the
RAID levels and manages the s
] Behalf Of Mohamed Kerbachi
Sent: Thursday, October 23, 2003 8:35 AM
To: [EMAIL PROTECTED]
Subject: RE: RAID on Linux ?
Software RAID,
thanks.
-Message d'origine-
De : Nick Lindsell [mailto:[EMAIL PROTECTED]
Envoyé : jeudi 23 octobre 2003 15:20
À : [EMAIL PROTECTED]
Objet : Re: RA
> I wanna instal RedHat AS, the server hase SCSI controler, so i want to
> install it and set up a RAID with the existing 4 HDs.
>
> Any docs are welcome.
for software-raid:
- the red hat manuals are a good source of information
- the software-raid howto:
http://www.tldp.org/HOWTO/Software-RAI
Software RAID,
thanks.
-Message d'origine-
De : Nick Lindsell [mailto:[EMAIL PROTECTED]
Envoyé : jeudi 23 octobre 2003 15:20
À : [EMAIL PROTECTED]
Objet : Re: RAID on Linux ?
On Thu, 2003-10-23 at 14:31, Mohamed Kerbachi wrote:
> I wanna instal RedHat AS, the server hase SCSI c
On Thu, 2003-10-23 at 14:31, Mohamed Kerbachi wrote:
> I wanna instal RedHat AS, the server hase SCSI controler, so i want to install it
> and set up a RAID with the existing 4 HDs.
>
> Any docs are welcome.
Hardware or software RAID ?
>
> Thanks.
--
--
ttfn, Nick.
--
redhat-list mailing
senthil wrote:
I would like to know from you gurus out there if there will be a performace
drop when the operating system is located along with a RAID array in time
when any paging ( swap ) operations are done.
That doesn't make much sense. I'm going to assume you're asking if
performance will
Hi Cosmo,
From http://unthought.net/Software-RAID.HOWTO/Software-RAID.HOWTO-
4.html#ss4.12 :
4.12 Root filesystem on RAID
In order to have a system booting on RAID, the root filesystem (/) must
be mounted on a RAID device. Two methods for achieving this is supplied
bellow. The methods below a
Hi Cosmo,
> doesn't mention that you can't mirror a mounted partition or address the
> issue of how to set up mirrors w/ production drives that have existing
> data.
Setting up RAID arrays on a running system works the same as before
installation, but you have to use free partitions. If you wan
If you have a system disk, and want to add a spare disk and make the two
together a RAID-1 drive, do the following:
* Add your disk (let's say it's hdb).
* Set up your raid config with your current system disk as a fiailed disk
(let's say it's hda).
* Start up your RAID volume and mount it somewhe
RH 7.2
OK, is there a better source of instructions on creating RAID 1 configs
on existing drives for Red Hat distributions?
I checked the Red Hat Docs and can only find instructions for setting up
RAID upon new installation, not on an existing system.
The FAQ that I referred to: http://unthou
Hi Cosmo,
> /dev/sda2 is mounted
> mkraid: aborted, see the syslog and /proc/mdstat for potential clues.
You can't make a raid device using a mounted device. Unmount it and
build the array from a rescue system. Not sure if that will preserve
the data on /dev/sda2 though.
Bye,
Leonard.
--
How
ge-
From: Ward William E DLDN [mailto:[EMAIL PROTECTED]
Sent: Thursday, March 20, 2003 3:22 PM
To: '[EMAIL PROTECTED]'
Subject: RE: RAID modes and priority
> -Original Message-
> From: Rechenberg, Andrew
> [mailto:[EMAIL PROTECTED]
> Sent: Thursday, March 20,
Yes it does.
Remo Mattei
Network Security Engineer
cell 801-209-8554
email [EMAIL PROTECTED]
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
On Behalf Of nate
Sent: Thursday, March 20, 2003 2:57 PM
To: [EMAIL PROTECTED]
Subject: Re: raid
remo said:
> HI guy
On Thu, 2003-03-20 at 22:38, remo wrote:
> HI guys I would like to know if anyone has used the raid software
> under redhat. I have installed and configured, then I move the 3
> drives that I have to a diff box raid 5 and for some reasons one of
> the drive did not come back, I check the settings a
remo said:
> HI guys I would like to know if anyone has used the raid software under
> redhat. I have installed and configured, then I move the 3 drives that I
> have to a diff box raid 5 and for some reasons one of the drive did not
> come back, I check the settings and now it's fine but when I go
> -Original Message-
> From: Rechenberg, Andrew
> [mailto:[EMAIL PROTECTED]
> Sent: Thursday, March 20, 2003 9:12 AM
> To: [EMAIL PROTECTED]
> Cc: [EMAIL PROTECTED]
> Subject: RE: RAID modes and priority
>
>
> RAID10 can theoretically survive a two drive
RAID10 can theoretically survive a two drive loss in your siutation
(they have to be the correct two drives :) ), whereas RAID0+1 will die
if you have a two drive loss.
We currently use software RAID10 on our production database server and
have 13 software RAID1 arrays (26 SCSI disks) and stripe
On Thu, Mar 06, 2003 at 09:33:52AM -0800, James D. Parra wrote:
> Any ideas on how to make Linux RAID 1 failover work with IDE drives.
It does. A tricky part is how to simulate a drive death. Pulling a
live plug on IDE is problematic. (I remember recently seeing mention
in the kernel 2.5 discus
lto:[EMAIL PROTECTED]
Sent: Wednesday, March 05, 2003 11:59 AM
To: [EMAIL PROTECTED]
Subject: Re: RAID-1 automatic failover failed
James D. Parra said:
> Hello,
>
> Created a RAID -1 of three partitions; \boot, \, and a swap partition with
> two identical drives. Mirroring works well but
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Hash: SHA1
On Thu, 6 Mar 2003 09:07:48 -0500, Jeff Kinz wrote:
> On Thu, Mar 06, 2003 at 08:37:34AM -0500, Rechenberg, Andrew wrote:
> > You shouldn't make a file system on the real disk partitions. This is
> > the procedure you should try:
> >
> > - Partition
On Thu, Mar 06, 2003 at 08:37:34AM -0500, Rechenberg, Andrew wrote:
> You shouldn't make a file system on the real disk partitions. This is
> the procedure you should try:
>
> - Partition your disks with your favorite partition program
> - Make your RAID devices with mkraid
> - Run mke2fs -j on t
You shouldn't make a file system on the real disk partitions. This is
the procedure you should try:
- Partition your disks with your favorite partition program
- Make your RAID devices with mkraid
- Run mke2fs -j on the resultant /dev/md device
- Mount and use
When you reboot your rc.sysinit scr
On 7 Mar 2003, Stephen Kuhn wrote:
> Just wondering if anyone has worked with the linear RAID-0 setups for
> creating large partitions; I've created the following:
>
> /etc/raidtab:
>
> raiddev /dev/md0
>
> raid-level 0
> persistent-superblock 1
> chunk-size
James D. Parra said:
> Hello,
>
> Created a RAID -1 of three partitions; \boot, \, and a swap partition with
> two identical drives. Mirroring works well but after pulling the source
> drive the OS freezes.
>
> Is there a way to make a RAID -1 automatically failover to the target
> drive if the sou
Yes, that's the purpose of RAID 1.
Jon
On Tue, 18 Feb 2003, James D. Parra wrote:
> Hello,
>
> Can a Linux RAID 1 (mirror) fail over to the target drive if the primary
> drive fails?
>
> Many thanks in advance.
>
> James D. Parra
> [EMAIL PROTECTED]
>
>
>
> --
> redhat-list mailing list
> unsubs
I finally got this fixedI booted in rescue mode, deleted the /etc/raidtab file so
that it does not attempt to start RAID on boot. That way I was able to boot normally.
Then I just grabbed the latest RPM packages for raidtools and popt and upgraded to
the latest versions. Works like a ch
Perhaps it is corrupt?
>
Starting up raid devices: /sbin/raidstart: error while loading shared libraries
libpopt.so.0: cannot open shared object file: No such file or directory
/sbin/raid0run: error while loading shared libraries libpopt.so.0: cannot open shared
object file: No
On 7/17/02 7:47 PM, "Javier Gostling" <[EMAIL PROTECTED]> wrote:
> Hi all,
> Does anyone know if there is some way to do something similar to RAID
> on tape drives? The idea is to use several tape drives in a RAID
> configuration to give the backup/restore process similar benefits as
> traditiona
whoever wherever wrote:
>
> I have RH 7.3 and a dell poweredge server with 2 scsi drives and RAID 1. I
> am trying to install 7.3 on the server, but when I get to the partition
> section I am clueless about raid setup. Here is what it shows me on the
> graphical install, Drive /dev/sda (Geom: 892
Raid level one is a mirrored drive right?
That means that if you have set the raid up correctly, both drives are
presented to the OS as one physical drive.
Partitioning would just be the same as a normal drive.
eg
/boot 30Megs
swap512 Megs
/
On Thu, May 02, 2002 at 12:36:45PM +0530, Manoj wrote:
> Where can I get the source code for software RAID Drivers.Also where can I
> get literature on writing S/W and H/W Raid drivers.
Software RAID is part of the 2.4 kernel, so just download the kernel
sources and start looking.
--
Ed Wilts,
go to google and do a search on "software raid driver"
patrick
___
Redhat-list mailing list
[EMAIL PROTECTED]
https://listman.redhat.com/mailman/listinfo/redhat-list
On Mon, 8 Apr 2002, Mike Watson wrote:
> Use "LABELS" for each partition. This makes moving drives around easier.
Until you have several partitions with the same labels and mount
the "wrongs" ones :o)
That is one of the advantages of labelling, though, yes.
They are not a panacaea though.
Use "LABELS" for each partition. This makes moving drives around easier.
Mike W
Bill Crawford wrote:
>
> On Sun, 7 Apr 2002, Devon Harding - GTHLA wrote:
>
> > But once I remove the old drives and put the new ones on the same controller
> > wont the device names change?
>
> Yes.
>
> How to
On Sun, 7 Apr 2002, Devon Harding - GTHLA wrote:
> But once I remove the old drives and put the new ones on the same controller
> wont the device names change?
Yes.
How to deal with this is left as an exercise for the reader.
I'd recommend playing a few games of Sokoban before trying to shu
Title: RE: Raid HD upgrade
But once I remove the old drives and put the new ones on the same controller wont the device names change?
-Original Message-
From: Cameron Simpson [mailto:[EMAIL PROTECTED]]
Sent: Friday, April 05, 2002 8:52 PM
To: [EMAIL PROTECTED]
Subject: Re: Raid HD
On 10:40 05 Apr 2002, Devon Harding - GTHLA <[EMAIL PROTECTED]> wrote:
| How do I upgrade two 9GB HD running software raid1 (mirroring) to two 20GB HD
| in RedHat 7.2
If it were me and I had enough busses I'd just set up the two new drives'
RAIDness and then mount them and copy the data over.
--
>I have one IDE harddisk running RedHat 7.1, I would like to add a second
>HD to mirror the first one. Is there any documentation to help the setup?
$ man mkraid
and the ones mentioned in the SEE ALSO section of that page.
Also take a look at /usr/share/doc/raidtools*
hth
cl.
__
There was an article in sysadmin magazine. It is a little tricky after
install, but can be done easily after the first successful attempt. Take a
look at the sysadmin site to get an idea of how to do it, but there are a
few steps that are missing that you should be able to figure out.
Best rega
Hello,
What do you mean with "internaly" ?
Cheers,
Pieter
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]
Sent: 18 March 2002 17:30
To: [EMAIL PROTECTED]
Subject: Raid
I want to setup a raid 5 storage device with 7.2. However I have read about
a lot of problems
At 3/18/2002 07:29 AM -0800, you wrote:
>I want to setup a raid 5 storage device with 7.2. However I have read about
>a lot of problems with using one internally with redhat. Does anyone have
>any suggestions?
RAID-5 is best (only?) done in hardware. Check out the 3Ware 7000 cards
(sold at www.c
Hi Ed Baily,
Thanks for your advice.
At 03:58 PM 12/25/2001 -0500, you wrote:
>Stephen> I have some further RAID questions to ask :
>
>I suggest doing a google search on "RAID", and doing some reading to learn
>more about RAID...
Yes, you are correct. I already made intensive browsing on Inter
Hi Ed,
Thanks for your response
At 11:52 AM 12/25/2001 -0600, you wrote:
>The card I used was a the TX2 without RAID for the $28 price. I used Linux
>software mirroring and hdparm reported speeds of >30MB/sec using my 2 IBM
>40GB ATA100 40GB drives. This was on a Duron 800 processor with 512MB
> "Stephen" == Stephen Liu <[EMAIL PROTECTED]> writes:
Stephen> I have some further RAID questions to ask :
I suggest doing a google search on "RAID", and doing some reading to learn
more about RAID...
Ed
--
Ed BaileyRed Hat, Inc. http://www
> Promise FastTrak100 TX4 (with 4 channels) and Promise FastTrak100 TX2
(with
> 2 channels) are true hardware RAID card for RAID 0, 1 and 0+1.
>
> My understanding from your advice, if correct, is with the application of
> Linux software RAID, ULTRA100 TX2 ATA/100 PCI can achieve equivalent
> perf
> "christoph" == christoph pirchl <[EMAIL PROTECTED]> writes:
...
christoph> You forgot RAID 4 it is stripping with parity on one Disc ! It s
christoph> normally not used any longer as i know !
Actually, a few years back I sat in on a presentation put on by Network
Appliance. It seems that t
On Tue, 2001-12-18 at 07:50, [EMAIL PROTECTED] wrote:
> Sorry do correct you Ed, but
>
> RAID 5 is not striping + mirroring, it is stripping with distributed
> parity,
If I said RAID 5 is striping + mirroring, then you're right - I was
wrong.
> It is the best compromise when you need fault to
Sorry do correct you Ed, but
RAID 5 is not striping + mirroring, it is stripping with distributed
parity,
It is the best compromise when you need fault tolerance, it`s cheaper
then
RAID 1 (mirroring) and the fault tolerance is also ok !
You forgot RAID 4 it is stripping with parity on one Disc !
Bob, buy and read the book Configuration and Capacity Planning for
Solaris Servers. Chapter 7 is a MUST read. The rest will bring you up
to speed on the type of RAID configuration based on your workload.
It's only 400 pages or so, you should be able to knock it out in a
weekend and then
Thanks to all,
This will be a new rack-mount server [we are trying to get everything
more organized than a bunch of old tower machines lined up on the floor].
The current file and print server is an aging Pentium Pro running WinNT
SP6a and that should indicate that the load is not that heavy.
Thank Ed
B.R.
Stephen
At 11:06 AM 12/19/2001 -0600, you wrote:
>On Thu, Dec 20, 2001 at 12:30:10AM +0800, Stephen Liu wrote:
> > > > Whether a special controller with 3 channels for connecting 3 hard
> > > discs is
> > > > needed ?
>
>You'll typically see 3-channel RAID controllers provide for
Hi Leonard,
Thanks. I got it.
B.R.
Stephen
At 03:10 PM 12/19/2001 +0100, you wrote:
> Hi Stephen,
>
> > Is RAID 0+1 similar to RAID 5 in function/performance ?
>
> I think I answered this question in my last post in this thread.
>
> Bye
On Wed, 2001-12-19 at 15:42, Brian Ashe wrote:
>
> B> 4. If I go with a raid, is tape backup still necessary on a daily basis?
>
> ALWAYS DO BACKUPS!!!
> RAID is not some magic solution that would eliminate the many ways that data
> can get destroyed.
I have also witnessed the results of a RA
Hi BobH,
On Wednesday, December 19, 2001, 3:23:14 PM, you brought forth from the
deepest reaches of your consciousness:
B> I am considering installing a new server (samba) for file and print serving
B> a small medical office. I have never used raid before and I have a
B> questions before I buy
>> 1. Should I buy a hardware raid device or rely on software raid?
Hardware raid will reduce CPU usage which is always good, although on a
really fast computer I suppose it wouldn't matter to much. Hardware raid is
of course, more costly, but I think worth it, depending on if you want RAID1
o
On Thu, Dec 20, 2001 at 12:30:10AM +0800, Stephen Liu wrote:
> > > Whether a special controller with 3 channels for connecting 3 hard
> > discs is
> > > needed ?
You'll typically see 3-channel RAID controllers provide for 3 SCSI buses, not
3 ATA buses. Multiple drives on a SCSI bus can have I/
Hi Ed,
Thanks for your detail answer to my questions and time spent.
At 06:41 AM 12/19/2001 -0600, you wrote:
>On Tue, 2001-12-18 at 23:04, Stephen Liu wrote:
>
> > At 06:40 AM 12/18/2001 -0600, you wrote:
> > >RAID 5 is striping + mirroring. I recommend that this not be done on
> > >IDE drives
Hi Stephen,
> Is RAID 0+1 similar to RAID 5 in function/performance ?
I think I answered this question in my last post in this thread.
Bye,
Leonard.
On Tue, 2001-12-18 at 23:04, Stephen Liu wrote:
> At 06:40 AM 12/18/2001 -0600, you wrote:
> >RAID 5 is striping + mirroring. I recommend that this not be done on
> >IDE drives unless you've invested in extra controllers. You need at
> >least 3 drives to make a RAID 5 set.
>
> Whether a specia
Hi James,
Thanks for your information.
Where can I have that chapter downloaded ? Is its ebook available ?
B.R.
Stephen
At 03:33 AM 12/19/2001 -0700, you wrote:
>Hi, the Berkley Raid definitions define RAID 5 as striping with interleved
>parity. because of the number of increased writes an
Hi, the Berkley Raid definitions define RAID 5 as striping with interleved
parity. because of the number of increased writes and read to commit an
actual write to disk, this method is normally used with caching in RAM using
fast writes as a method to improve performance. Striping + Mirroring i
Hi,
Thanks for your detail information.
At 06:40 AM 12/18/2001 -0600, you wrote:
>RAID 5 is striping + mirroring. I recommend that this not be done on
>IDE drives unless you've invested in extra controllers. You need at
>least 3 drives to make a RAID 5 set.
Whether a special controller with 3
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Hash: SHA1
Generic Account 0568 wrote:
>is there a way to get the module to load up on kernel other then 2.4.2-2
>right now the the only way i can get it working is using the kernel that
>comes withe the driver every time i try antoher i get unresolved symbles
On Mon, 2001-12-17 at 23:27, Stephen Liu wrote:
> One additional question I expect to ask, in my case, whether it is
> advisable to apply RAID to build the Web Server simultaneously because the
> configuration of Apache, PHP, MySQL will keep me quite busy (I did it once
> in 2 years ago). Is
Hi Leonard,
Lot of thanks for your detail information and time
I shall digest those documentation first before finalizing my way to
go.RAID 0, RAID 1, or RAID 5 , etc.?
My plan is to build a Web Server using Apache, PHP, MySQL, etc. to
experience its function. I hesitate whether I should
Hi, Ed Wilts,
Lot of thanks for your information.
I shall sum up all advices sent to me from those guys on the list first in
parallel penetrating relevant documentation before finalizing my way to
go.RAID 0, RAID 1, or RAID 5 , etc.?
My plan is to build a Web Server using Apache, PHP, MyS
Hi Stephen, Ed,
> Ideally, you'd connect each drive to a separate IDE channel. It doesn't matter
> if one is the master on its bus and the other is slave, as long as both drives
> are on separate channels.
I would suggest you only use the devices as master, or it might be your
Hi Stephen,
> I am using 2th Max 8KHA motherboard. Unfortunately it has only one FDD1
> channel for ATA100 hard disc. Additionally it has 2 ATA33 IDE channels
> (altogether 3 channels). If I add an ATA100 controller then I shall have 3
> ATA100 channels, having a waste (5 cha
On Tue, Dec 18, 2001 at 01:32:20AM +0800, Stephen Liu wrote:
>
> I am using 2th Max 8KHA motherboard. Unfortunately it has only one FDD1
> channel for ATA100 hard disc. Additionally it has 2 ATA33 IDE channels
> (altogether 3 channels). If I add an ATA100 controller then I shall have 3
> AT
Hi,
At 11:06 AM 12/17/2001 -0600, you wrote:
>I picked up a Promise TX2 ATA/100 controller from http://www.mwave.com for
>less
>than $30 and added 2 new ATA100 40GB drives to it.
I am using 2th Max 8KHA motherboard. Unfortunately it has only one FDD1
channel for ATA100 hard disc. Additionall
On Tue, Dec 18, 2001 at 12:05:27AM +0800, Stephen Liu wrote:
> I am aware of hardware RAID on M$Win OS using a controller connecting to 2
> hard discs. But I am interested to learn whether Linux offers software
> controller to connect 2 hard discs. If "Yes" then how to make connection
> to 2
Hi Leonard,
Thanks for your response and advice.
At 03:25 PM 12/17/2001 +0100, you wrote:
> The use of RAID 0 with stripes on a single disk is pointless. You want to
>stripe to gain performance. But if you use stripes on a single disk you will
>probably even loose some performance due to the ov
Hi Stephen, Ed,
> Yes. Red Hat Linux has offered software RAID for a few years.
I do miss a choice of the parity algorithm for RAID 5 in the installer
though. Not sure if that was added in 7.2.
> > Can I make 4 (four) partitions in the same hard disc and intall RAID 0 and
> >
On Mon, 2001-12-17 at 04:24, Stephen Liu wrote:
> Is RH7.2 coming with software RAID
Yes. Red Hat Linux has offered software RAID for a few years.
> Can I make 4 (four) partitions in the same hard disc and intall RAID 0 and
> RAID 1 to it. Where can I find relevant documentation ?
RAID 0 o
Hi Justin,
> I'm wondering if anyone's tried to raid a fat partition on a dual boot
> system? I know booting dos would throw the raid out of sync, would there
> be a way to resynchronize it after?
Not sure what the point of this would be, but I guess it could be done. But
afte
On Mon, 30 Apr 2001 14:52:49 -0500, you wrote:
>We are having a terrible time finding RH70 drivers for an Adaptec 2100s RAID
http://www.adaptec.com/worldwide/common/editorial.html?prodkey=linux_drivers
inside those rpms you find the source code.
also, you can email deanna bonds (you find her ema
At 4/25/01 05:57 PM -0400, you wrote:
>The boards perform pretty well, but there is relatively little information
>about its run-time status. There is no way to programmatically determine
>which drive has failed, thereby still requiring a reboot even for hot-swap
>systems.
>
>I think the Mylex boa
> I went to AMI's site, and they even provide a modified 2.2.16 kernel!
It's directly support in 2.2.19 and no kernel patch necessary.
> This along with drivers in RPM format and instructions on how to use
> their stuff under RedHat. However, I didn't check in detail what level
> of support the
At 4/25/01 05:25 PM -0400, you wrote:
>I want to set up a RAID using udma drives. I don't think soft RAID is a
>good solution from a performance standpoint. I searched all the hardware
>RAID vendors to find one providing a udma hardware RAID controller that
>would work with Linux. None, so far
[EMAIL PROTECTED]
cc:
Subject:Re: RAID
At 4/25/01 02:11 PM -0400, you wrote:
>Within six months Introducing Linux when the SupeTrak SX 6 is introduced.
>
>
>The question, to Promise Technology, was "When do you expect to have
Linux
>compatible drivers f
At 4/25/01 02:11 PM -0400, you wrote:
>Within six months Introducing Linux when the SupeTrak SX 6 is introduced.
>
>
>The question, to Promise Technology, was "When do you expect to have Linux
>compatible drivers for the SuperTrak RAID 5 controller?"
I'm very interested in RAID and the Promise Su
IS schrieb:
>
> How does RH respond if I add a new disk into my RAID-5 array? What happens
> with the assigned space in the existing file system?
>
> My configuration: HP LC2000, NetRaid 1-Si, 3x 9.1 Gb, RAID-5 depending on RH
> 7.0.
How do you want to extend your Raid-5 array?. I did a similar
MPS WebCrew <[EMAIL PROTECTED]> wrote:
>Yes, /dev/sda1 is my primary drive, and /dev/sda2 is the secondary drive
>in the ex-RAID. It is where the data I was wanting to get from the backup is.
Hopefully you mean *partition* rather than *drive* since both sda1 and sda2
are on the same physical
Yes, /dev/sda1 is my primary drive, and /dev/sda2 is the secondary drive in the
ex-RAID. It is where the data I was wanting to get from the backup is.
You are right in the fact that this is an extended partition. There should be two
partitions on it: 1) the mirror of "/" 2) the mirror of "swa
MPS WebCrew <[EMAIL PROTECTED]> wrote:
>OK, my question is now "how do I mount it?". I want to mount the mirror
>of the "/" partition from inside dev/sda2. Does me a lot of good having a
>backup when I can't get inside it!
Huh? I'm not following you. Your partition table looks like this
a
OK, my question is now "how do I mount it?". I want to mount the mirror of the "/"
partition from inside dev/sda2. Does me a lot of good having a backup when I can't
get inside it!
Thanks!
Caleb Newville - MPS WebCrew
<<< [EMAIL PROTECTED] 4/12 10:26a >>>
MPS WebCrew <[EMAIL PROTECTED]> wr
MPS WebCrew <[EMAIL PROTECTED]> wrote:
>OK, here is the output from that:
>---
>Disk /dev/sda: 255 heads, 63 sectors, 1112 cylinders
>Units = cylinders of 16065 * 512 bytes
>
>Device BootStart EndBlocks Id System
>/dev/sda1 * 1 1046 8401963+ 83
OK, here is the output from that:
---
Disk /dev/sda: 255 heads, 63 sectors, 1112 cylinders
Units = cylinders of 16065 * 512 bytes
Device BootStart EndBlocks Id System
/dev/sda1 * 1 1046 8401963+ 83 Linux
/dev/sda2 1047 111253014
On Wed, Apr 11, 2001 at 04:35:50PM -0500, MPS WebCrew a ecrit:
>
> I previously had RAID mirroring setup on 2 SCSI hard disks in RH 7.0
> [root@login admin]# mount -t ext2 /dev/sda2 /mnt/old
> mount: wrong fs type, bad option, bad superblock on /dev/sda2,
>or too many mounted file systems
>At 04:35 PM 1/22/01 -0800, you wrote:
>
>raid0 <-- Min 2 This is append mode multiple disks seen as one. say a 30
>and a 40 gig together in raid1 would be a 70 gig raid array.
^^^
DOH! Typo | should say raid0
>raid1
raid0 <-- Min 2 This is append mode multiple disks seen as one. say a 30
and a 40 gig together in raid1 would be a 70 gig raid array.
raid1 <-- Min 2 This is mirror both drives appear as one but are exact
copys of each other
raid5 <-- Min 3 , 4 or 5 or more recommended, One disk is for parad
Does this particular card have the capability (using it's own
hardware) for RAID5? It should be done by the card (hardware
RAID) instead of Linux (Software RAID) because software RAID will
choke the PC's CPU(s).
One other queestion, does your particular version
of RH have a module for this Adapt
If your server is running any critical applications and downtime is a
concern, then you should configure a RAID 5, with RAID 5 you will get (n-1)
i.e 18GB in your case. In case of a single drive failure you can easily
replace only the failed drive, and your Array will auto rebuild itself.
With RAI
On Tue, 25 Jul 2000, Lee Howard wrote:
> >I wonder then, why you had a problem with upgrade via RPM? ...
>
> This is a wild guess, but I think it has to do with the assumptions made by
> whoever made the RedHat kernel RPMs. I'm guessing here again, but I think
> that the 6.2 kernel RPMs don't co
>> The key to the solution was applying the current RedHat RAID patch to the
>> kernel source. This is maintained by Ingo at the following site:
>
>I wonder then, why you had a problem with upgrade via RPM? ...
This is a wild guess, but I think it has to do with the assumptions made by
whoever m
On Mon, 24 Jul 2000, Lee Howard wrote:
> I have re-installed this test system using /boot as a RAID device
If /boot is a striped RAID device (it looks like your last one was) this
is going to cause problems, eventually.
When LILO boots the system, it has to load the kernel and initrd into
memory
On Mon, 24 Jul 2000, Lee Howard wrote:
> The key to the solution was applying the current RedHat RAID patch to the
> kernel source. This is maintained by Ingo at the following site:
I wonder then, why you had a problem with upgrade via RPM? ...
> (Can anybody tell me what the difference is bet
>I'm not certain if /boot can be used as a RAID device yet; I'm about to try
>that again. And if it can be, I'm not certain if I'll continue to get the
>[FAILED] message on halts/restarts.
I have re-installed this test system using /boot as a RAID device, and do
not get the previously mentioned
The key to the solution was applying the current RedHat RAID patch to the
kernel source. This is maintained by Ingo at the following site:
http://people.redhat.com/mingo/raid-patches
(Can anybody tell me what the difference is between this and the so-called
patches found on kernel.org? The one
>> *However*, I *still* get errors in dmesg logs... this time saying:
>>
>> request_module[md-personality-3]: Root fs not mounted
>> do_md_run() returned -22
>
>Strange... Is that before or after the initrd is unloaded, and the RAID
>set is mounted?
I don't know how to tell, but this these are t
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