I have a FreeBSD 9.0 server with an Intel RAID card that has two array
mirrors of which one has failed. The remote host was not responding and
had it reset to find in the RAID utility one of the drives had failed
one of the RAID 1 arrays. Perhaps I shouldn't have, but I told the
utility to use
On 2/10/2012 7:15 AM, Robert Fitzpatrick wrote:
I have a FreeBSD 9.0 server with an Intel RAID card that has two array
mirrors of which one has failed. The remote host was not responding and
had it reset to find in the RAID utility one of the drives had failed
one of the RAID 1 arrays. Perhaps
On Fri, Oct 29, 2010 at 8:49 PM, Adam Vande More amvandem...@gmail.comwrote:
On Fri, Oct 29, 2010 at 3:35 PM, Jerrin slackma...@gmail.com wrote:
i have a freebsd(7.3) dedicated server with one hard disk.It have
partitions
for root and swap only.I want to setup RAID1 by adding one more
partitions
for root and swap only.I want to setup RAID1 by adding one more hard
disk.i
found in freebsd handbook about setting up RAID1
http://www.freebsd.org/doc/handbook/geom-mirror.html .I only have
remote
access to the server.Will i lose data by doing it?
If you do it correct way
Hello,
i have a freebsd(7.3) dedicated server with one hard disk.It have partitions
for root and swap only.I want to setup RAID1 by adding one more hard disk.i
found in freebsd handbook about setting up RAID1
http://www.freebsd.org/doc/handbook/geom-mirror.html .I only have remote
access
:
Hello,
i have a freebsd(7.3) dedicated server with one hard disk.It have
partitions
for root and swap only.I want to setup RAID1 by adding one more hard disk.i
found in freebsd handbook about setting up RAID1
http://www.freebsd.org/doc/handbook/geom-mirror.html .I only have remote
access
On Fri, Oct 29, 2010 at 3:35 PM, Jerrin slackma...@gmail.com wrote:
i have a freebsd(7.3) dedicated server with one hard disk.It have
partitions
for root and swap only.I want to setup RAID1 by adding one more hard disk.i
found in freebsd handbook about setting up RAID1
http://www.freebsd.org
On 24 February 2010 00:59, Pieter de Goeje pie...@degoeje.nl wrote:
On Tuesday 23 February 2010 23:11:37 Andrew Klaassen wrote:
From the lack of response, am I correct to conclude that Gvinum can't do
RAID1+0 (as opposed to RAID0+1)?
I'll bite.
Is there a particular reason why you want
From the lack of response, am I correct to conclude that Gvinum can't do
RAID1+0 (as opposed to RAID0+1)?
Thanks.
Andrew
--- On Mon, 2/22/10, Andrew Klaassen claws...@yahoo.com wrote:
Hi.
Newbie question: I'm trying to figure out how to
create a stripe-over-mirrors, aka RAID1+0
On Tuesday 23 February 2010 23:11:37 Andrew Klaassen wrote:
From the lack of response, am I correct to conclude that Gvinum can't do
RAID1+0 (as opposed to RAID0+1)?
I'll bite.
Is there a particular reason why you want to use gvinum instead of a
combination of gmirror and gstripe?
I don't
Hi.
Newbie question: I'm trying to figure out how to create a stripe-over-mirrors,
aka RAID1+0, with Gvinum. The manual gives an example for a
mirror-over-stripes, aka RAID0+1, but I can't for the life of me figure out
from that example or others I've feebly Googled how to do a RAID1+0. I'm
I can't actually apply this patch to FreeBSD 6.3-RELEASE. It seems
ataraid is something not to be used in FreeBSD so I have started to
use gmirror instead. Only downside of it is there are 2 disks shown in
boot loader not one so if F1 (first disk goes) goes you have to
manually select other disk
Hi,
Has anyone had experience applying this patch to their FreeBSD 6.x setup?
http://www.nabble.com/Vital-Patches-for-ataraid-with-Intel-Matrix-RAID-(ICH7)-td16179257.html
I've couple of machines using ICH8/ICH9 which seem to exhibit the same problems
and would be interested in applying the
I need help with this. I'm trying to create a software RAID1. I followed
the instructions in man page
http://www.freebsd.org/cgi/man.cgi?query=atacontrolsektion=8apropos=0manpath=FreeBSD+7.1-RELEASE
atacontrol(8)
atacontrol(8) wrote:
[snip]
A quick and dirty way to create
On 20.8.2008, at 10.48, DA Forsyth wrote:
Good for you. I see I'm a bit late coming in with my advice, which
is to follow the instructions at
http://www.onlamp.com/pub/a/bsd/2005/11/10/FreeBSD_Basics.html?page=1
with a few mods because you (and I) were not building a new machine.
This is the
Thanks a lot folks,
I managed to get the server working, only one file could not be read
from the bad disk, but it wasn't required. It took hours to do it and
it certainly will remind me next time I choose to be lazy and install
a server to non-mirrored disk. :-)
--
Henry Karpatskij
Hi,
I have a failing IDE disk which is running my 7.0-p1 server. I've been
investigating the possible solutions and I've decided to go with two
new IDE disks and gmirror. However, I'm not too familiar with disk
internals, I know how to install the system and somehow understand the
Henry Karpatskij wrote:
Hi,
I have a failing IDE disk which is running my 7.0-p1 server. I've been
investigating the possible solutions and I've decided to go with two new
IDE disks and gmirror. However, I'm not too familiar with disk
internals, I know how to install the system and somehow
On Monday 18 August 2008 05:39:10 am Henry Karpatskij wrote:
Hi,
I have a failing IDE disk which is running my 7.0-p1 server. I've been
investigating the possible solutions and I've decided to go with two
new IDE disks and gmirror. However, I'm not too familiar with disk
internals, I know
: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] Behalf Of Roberto Nunnari
Sent: Tuesday, April 29, 2008 12:35 PM
To: freebsd-questions@freebsd.org
Subject: Re: raid1 + degraded (take out one disk) + fatal trap 12 on
next reboot
Nobody on this, please? :)
Roberto Nunnari wrote:
Hi all
the array and reinstall
the OS. That is why you make a backup first when the system is
off-duty.
Ted
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] Behalf Of Roberto Nunnari
Sent: Tuesday, April 29, 2008 12:35 PM
To: freebsd-questions@freebsd.org
Subject: Re: raid1
Nobody on this, please? :)
Roberto Nunnari wrote:
Hi all!
I'm playing with new HW and FreeBSD 6.3 and 7.0.
I set up raid 1 on two sata disks (fakeraid on ICH9R)
and as long as I can see, it seams to work very well.
Now I'm trying to simulate 1 disk failure (I just take
out a disk and boot
From: Tamouh H. [EMAIL PROTECTED]
Date: Wed, 16 Apr 2008 19:34:55 -0400
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of
Kevin Oberman
Sent: April 16, 2008 6:03 PM
To: [EMAIL PROTECTED]
Subject: ICH7R RAID1 support?
Can anyone
Can anyone confirm whether support for RAID1 on the ICH7R is in FreeBSD?
--
R. Kevin Oberman, Network Engineer
Energy Sciences Network (ESnet)
Ernest O. Lawrence Berkeley National Laboratory (Berkeley Lab)
E-mail: [EMAIL PROTECTED] Phone: +1 510 486-8634
Key fingerprint:059B
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of
Kevin Oberman
Sent: April 16, 2008 6:03 PM
To: [EMAIL PROTECTED]
Subject: ICH7R RAID1 support?
Can anyone confirm whether support for RAID1 on the ICH7R is
in FreeBSD?
--
R. Kevin Oberman
-Original Message-
From: Jan Catrysse
Sent: Thursday, November 22, 2007 2:18 PM
To: 'freebsd-questions@freebsd.org'
Subject: RAID1 synchronisation - howto OR not necessary?
Dear subscribers,
I am currently running a production server:
FreeBSD 6.2 STABLE
Onboard Intel ICH8R
Gert Lynge wrote:
The disks themselves handle the checksumming to detect bad blocks.
With modern disks it is *very* rare that a block on the disk goes bad
without the disk being able to report it it as such.
This means that if you have a functioning RAID1 setup and one of the
disks report
From: Bill Moran [mailto:[EMAIL PROTECTED]
Sent: Thursday, November 22, 2007 9:57 PM
To: Jan Catrysse
Cc: freebsd-questions@freebsd.org
Subject: Re: RAID1 synchronisation - howto OR not necessary?
Jan Catrysse [EMAIL PROTECTED] wrote:
Dear subscribers,
I am currently running
RAID1 setup and one of the
disks report a bad block, then the controller can simply read the
corresponding block from the other disk, and rewrite it to the disk
with the bad block. If a disk has problems writing a block it will
transparently re-map the block to another.
The problems can occur
Jan Catrysse [EMAIL PROTECTED] wrote:
I didn't dig in GEOM because I wondered what happens if the primary
disk fails when two disks are in a RAID1 config?
There is no primary disk in a GEOM RAID1. If the BIOS has a concept of
primary disk, then it's a BIOS issue and the answer will depend
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Bill Moran
Sent: Friday, November 23, 2007 3:28 PM
To: Jan Catrysse
Cc: freebsd-questions@freebsd.org
Subject: Re: RAID1 synchronisation - howto OR not necessary?
Jan Catrysse [EMAIL PROTECTED] wrote:
Hi Bill,
Thank
-Original Message-
From: Bill Moran [mailto:[EMAIL PROTECTED]
Sent: Friday, November 23, 2007 4:01 PM
To: Jan Catrysse
Cc: freebsd-questions@freebsd.org
Subject: Re: RAID1 synchronisation - howto OR not necessary?
Jan Catrysse [EMAIL PROTECTED] wrote:
I didn't dig in GEOM
for
Raid1
On Windows systems it is an absolute must to do a Raid
Synchronisation
every once and a while to maintain data consistency.
Wow. Any RAID controller with that requirement is junk.
Where did you get the information from that you had to
synchronize? Does it say so
Hi,
On 23/11/2007, Jan Catrysse [EMAIL PROTECTED] wrote:
From: Bill Moran [mailto:[EMAIL PROTECTED]
Sent: Thursday, November 22, 2007 9:57 PM
To: Jan Catrysse
Cc: freebsd-questions@freebsd.org
Subject: Re: RAID1 synchronisation - howto OR not necessary?
Jan Catrysse [EMAIL PROTECTED
On Fri, Nov 23, 2007 at 02:45:37PM +0100, Christian Walther wrote:
Hi,
On 23/11/2007, Jan Catrysse [EMAIL PROTECTED] wrote:
From: Bill Moran [mailto:[EMAIL PROTECTED]
Sent: Thursday, November 22, 2007 9:57 PM
To: Jan Catrysse
Cc: freebsd-questions@freebsd.org
Subject: Re: RAID1
The disks themselves handle the checksumming to detect bad blocks.
With modern disks it is *very* rare that a block on the disk goes bad
without the disk being able to report it it as such.
This means that if you have a functioning RAID1 setup and one of the
disks report a bad block
Dear subscribers,
I am currently running a production server:
FreeBSD 6.2 STABLE
Onboard Intel ICH8R Raid 1 with 2x SATA300 500GB HDD
Using ATA for Raid1
On Windows systems it is an absolute must to do a Raid Synchronisation
every once and a while to maintain data consistency.
I am some what
Jan Catrysse [EMAIL PROTECTED] wrote:
Dear subscribers,
I am currently running a production server:
FreeBSD 6.2 STABLE
Onboard Intel ICH8R Raid 1 with 2x SATA300 500GB HDD
Using ATA for Raid1
On Windows systems it is an absolute must to do a Raid Synchronisation
every once and a while
Hello. This is my first post onto the list, so please correct me if
this is not the correct place.
The situation is I currently have a machine running gmirror RAID1 on two
36GB disks. That's all fine and dandy, except that those disks are
running out of space (temporarily alleviated through
So it looks like I came up with a resolution myself on this. Here's a
post for posterity or any comments:
What I've done so far is to forget da1 from the gm0 mirror, restart,
and put the 73GB into drive bay two. But now I'm at bit lost at the
process to follow to achieve my desired result.
On 26/08/07, Charles Uchu Strader [EMAIL PROTECTED] wrote:
So it looks like I came up with a resolution myself on this. Here's a
post for posterity or any comments:
What I've done so far is to forget da1 from the gm0 mirror, restart,
and put the 73GB into drive bay two. But now I'm at
: 188348MB Seagate ST3300831AS 3.03 at ata3-master SATA150
ar0: 188348MB LSILogic v3 MegaRAID RAID1 status: READY
ar0: disk0 READY (master) using ad4 at ata2-master
ar0: disk1 READY (mirror) using ad6 at ata3-master
...
During the installation of freebsd6.2 there are 3 variants where freebsd can
...
ad4: 188348MB Seagate ST3300831AS 3.03 at ata2-master SATA150
ad6: 188348MB Seagate ST3300831AS 3.03 at ata3-master SATA150
ar0: 188348MB LSILogic v3 MegaRAID RAID1 status: READY
ar0: disk0 READY (master) using ad4 at ata2-master
ar0: disk1 READY (mirror) using ad6 at ata3-master
...
During
hi all-
doing a clean install to 6.1, and i've decided to set up my system
drives as RAID 1 now that I see that 6.1 has support for the ICH5R raid
controller. My BIOS recognizes the SATA RAID 1 array correctly, but the
FreeBSD installer still sees 'ad4' and 'ad6' as two separate drives. The
Hi.
I've been setting up some gmirror based software RAID1s lately, and I
keep running into some odd behaviour.
Writing to the RAID1 runs at near to normal rates, as expected.
But reading from the RAID1 runs at half the normal rates, while I
expected to get double rates.
I've tested
I am having trouble with THESE instructions:
http://people.freebsd.org/~rse/mirror/
I'm trying to create a RAID1 system with FreeBSD and the instructions
are not working. I'm getting this error:
mail# gmirror insert gm0 /dev/da0
Cannot access provider da0.
The command is trying to add the first
Jason King wrote:
I am having trouble with THESE instructions:
http://people.freebsd.org/~rse/mirror/
I'm trying to create a RAID1 system with FreeBSD and the instructions
are not working. I'm getting this error:
mail# gmirror insert gm0 /dev/da0
Cannot access provider da0.
The command
Venturoli wrote:
Jason King wrote:
I am having trouble with THESE instructions:
http://people.freebsd.org/~rse/mirror/
I'm trying to create a RAID1 system with FreeBSD and the instructions
are not working. I'm getting this error:
mail# gmirror insert gm0 /dev/da0
Cannot access provider da0
Andrea Venturoli wrote:
I used that tutorial on different machines and it has always worked.
Maybe you have to substitute da0 with something else, that depends on
your hardware. Can you provide a your dmesg at boot time?
bye
av.
Hi Jason:
1) please do NOT top post (i.e., don't reply @
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Jason King
Sent: Thursday, September 15, 2005 5:16 AM
To: freebsd-questions@freebsd.org
Subject: Software RAID1
I am having trouble with THESE instructions:
http://people.freebsd.org/~rse/mirror
adnn are IDE devices. da0, da1dann are SCSI devices.
Use whichever you have.
jerry
Jason
Andrea Venturoli wrote:
Jason King wrote:
I am having trouble with THESE instructions:
http://people.freebsd.org/~rse/mirror/
I'm trying to create a RAID1 system with FreeBSD
with THESE instructions:
http://people.freebsd.org/~rse/mirror/
I'm trying to create a RAID1 system with FreeBSD and the instructions
are not working. I'm getting this error:
mail# gmirror insert gm0 /dev/da0
Cannot access provider da0.
The command is trying to add the first disk /dev/da0 to the mirror gm0.
Has
:
Jason King wrote:
I am having trouble with THESE instructions:
http://people.freebsd.org/~rse/mirror/
I'm trying to create a RAID1 system with FreeBSD and the instructions
are not working. I'm getting this error:
mail# gmirror insert gm0 /dev/da0
Cannot access provider da0
mail su: jking to root on /dev/ttyp0
Andrea Venturoli wrote:
Jason King wrote:
I am having trouble with THESE instructions:
http://people.freebsd.org/~rse/mirror/
I'm trying to create a RAID1 system with FreeBSD and the instructions
are not working. I'm getting this error:
mail# gmirror
are SCSI devices.
Use whichever you have.
jerry
Jason
Andrea Venturoli wrote:
Jason King wrote:
I am having trouble with THESE instructions:
http://people.freebsd.org/~rse/mirror/
I'm trying to create a RAID1 system with FreeBSD and the instructions
are not working. I'm
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Jason King
Sent: Thursday, September 15, 2005 10:27 AM
To: Jerry McAllister
Cc: Andrea Venturoli; freebsd-questions@freebsd.org
Subject: Re: Software RAID1
Ok, I made the correction and I'm still
Of Jason King
Sent: Thursday, September 15, 2005 10:27 AM
To: Jerry McAllister
Cc: Andrea Venturoli; freebsd-questions@freebsd.org
Subject: Re: Software RAID1
Ok, I made the correction and I'm still getting these errors:
mail# dd if=/dev/zero of=/dev/da0 bs=512 count=79
dd: /dev/da0: Operation
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Jason King
Sent: Thursday, September 15, 2005 10:37 AM
To: Jerry McAllister
Cc: Andrea Venturoli; freebsd-questions@freebsd.org
Subject: Re: Software RAID1
Also, I noticed that this command
PROTECTED] On Behalf Of Jason King
Sent: Thursday, September 15, 2005 10:37 AM
To: Jerry McAllister
Cc: Andrea Venturoli; freebsd-questions@freebsd.org
Subject: Re: Software RAID1
Also, I noticed that this command:
sed -e 's/dev\/ad0/dev\/mirror\/gm0/g' /mnt/etc/fstab.orig
/mnt/etc/fstab
Jason King wrote:
The instructions say to use ad0 and ad1 as the /dev names but those
devices don't exist on my server. The device names are da0 and da1. I'd
be glad to post anything you wish, but I don't know what the dmesg is,
or how I get it. Can you tell me where I can get that information?
I just got an Promise TX2200 RAID Controller and 2x250GB SATA
Drives for my new webserver.
As soon as I define a raid of some sort, the installation cd just
reboots the system. I think that happens at the stage where the
kernel should be loaded.
I've used the TX2000 with IDE drives before.
I think I just cracked it!
After initially creating the mirror with the live filesystem from the
installation cd, I used the expert install mode... there is an option
to re-scan for devices there... then the ar0 device is present.
I'm installing now. hope it works.
- stefan
On Jul 22,
On Sunday 10 July 2005 05:21 pm, Ceasar Navato wrote:
Good day.
Please help. I have a motherboard that has a SATA
RAID support. I enabled it and configured the RAID
using RAID1 through the BIOS. My question is, do I
also have to configure RAID1 in FreeBSD so that it
automatically
Good day.
Please help. I have a motherboard that has a SATA
RAID support. I enabled it and configured the RAID
using RAID1 through the BIOS. My question is, do I
also have to configure RAID1 in FreeBSD so that it
automatically mirrors what is in the first disk or my
hardware RAID is enough
.
Now my raid1 device doesn't show any swap partition. Is this
o.k., or should it be reactivated somehow?
Uhmmm, can you elaborate on that?
O.K. I will try to:
# gmirror list
# mount
# swapinfo
all show the about the same stuff as yours. During Raid setup I
inserted a line
swapoff=YES
into /etc
On Fri, Jul 01, 2005 at 12:13:50PM +0200, P.U.Kruppa wrote:
swapoff=YES
into /etc/rc.conf -since it was recommended. It is still there
can I remove it now or will there be any problems?
I think they might have fixed that in 5.4, but it doesn't huirt to
have it there. I've been careful to run
Hi!
I have to set up a new proxy for our school. Since I found two
identical IDE disks, I gave a software raid1 with gmirror a try.
I set the two disk as primary and secondary master, ie. ad0 and
ad2, and followed Ralf Engelschall's excellent HowTo at
http://people.freebsd.org/~rse/mirror
P.U.Kruppa wrote:
As far as I can see, booting from gm0 works fine. There are only two
questions left:
1) I installed FreeBSD 5.4 -RELEASE and thus I put - as
recommended (or was that only for 5.3 ???) - swapoff=YES into
my /etc/rc.conf .
Now my raid1 device doesn't show any swap
Hello. I'm using a pare of SATA Disks as RAID1 (Mirrored) Array on Intel SRCS16
controller. And I made this type of array in a BIOS of a controller. Then I
had install a FreeBSD 5.4 Release I had not one disk (such ar0), but 2
different disks (such ad4 and ad6) .
So If i will be use
,
remounted the / filesystem rw, ee the /etc/fstab and changed all the
mountpoints to ar1, rebooted, and all is well!
I now have 2 RAID1 configs on the same box, and am successfully booting
off of the promise raid properly before the motherboard disks!!
Thanks to all who provided feedback! I hope
think there is no way to get your original raid back
to ar0 if you also use your mainboard controllers.
Hence, the aftermath on a properly booted system:
pearl# atacontrol status 1
ar1: ATA RAID1 subdisks: ad4 ad6 status: READY
pearl# atacontrol status 0
ar0: ATA RAID1 subdisks: ad2 ad0 status
On Saturday 18 June 2005 16:51:16, Steve Bertrand wrote:
Hence, the aftermath on a properly booted system:
pearl# atacontrol status 1
ar1: ATA RAID1 subdisks: ad4 ad6 status: READY
pearl# atacontrol status 0
ar0: ATA RAID1 subdisks: ad2 ad0 status: READY
pearl# df -h
FilesystemSize
Hey all,
I've been running my 4.11 box on a Promise RAID one card with no
difficulty.
Today I added 2 new disks to the regular IDE chain, and used atacontrol
to create a second RAID1 configuration for those 2 new disks. After I
created with atacontrol, it successfully told me an 'ar1' had been
On Jun 17, 2005, at 2:36 PM, Steve Bertrand wrote:
Hey all,
I've been running my 4.11 box on a Promise RAID one card with no
difficulty.
Today I added 2 new disks to the regular IDE chain, and used
atacontrol
to create a second RAID1 configuration for those 2 new disks. After I
created
Please clarify. You said you added two new disks to the
'regular ide chain' and then created another RAID1 config for
those disks.
Are the new drives connected to the Promise RAID controller,
or the motherboard's IDE controllers?
The original RAID, 2 ide drives connected
Here is what I did, and the subsequent effect:
(Remember, ad4 and ad6 (promise drives) make up the bootable ar0):
# after 2 brand new drives installed:
- atacontrol create RAID1 ad0 ad2
...at which point it said it was successful, and designated the new RAID
config as ad1.
After reboot
: Saturday, February 19, 2005 5:46 PM
Subject: Re: raid1
On Feb 19, 2005, at 12:37 AM, Sandy Rutherford wrote:
On Fri, 18 Feb 2005 23:51:53 -0700,
Chad Leigh -- Shire.Net LLC [EMAIL PROTECTED] said:
On Feb 18, 2005, at 11:39 PM, Spades wrote:
hi, my server hardware supports hardware raid, i
, 2005 5:46 PM
Subject: Re: raid1
On Feb 19, 2005, at 12:37 AM, Sandy Rutherford wrote:
On Fri, 18 Feb 2005 23:51:53 -0700,
Chad Leigh -- Shire.Net LLC [EMAIL PROTECTED] said:
On Feb 18, 2005, at 11:39 PM, Spades wrote:
hi, my server hardware supports hardware raid, i installed it
as per normal
, 2005 5:46 PM
Subject: Re: raid1
On Feb 19, 2005, at 12:37 AM, Sandy Rutherford wrote:
On Fri, 18 Feb 2005 23:51:53 -0700,
Chad Leigh -- Shire.Net LLC [EMAIL PROTECTED] said:
On Feb 18, 2005, at 11:39 PM, Spades wrote:
hi, my server hardware supports hardware raid, i installed it
as per normal
hi, my server hardware supports hardware raid, i installed it
as per normal freebsd 5.3, however i see no difference
in df. its using 2 x 160GB, what do i do during the installation
to enable the raid?
mobo:
http://www.supermicro.com/products/motherboard/Xeon800/E7320/X6DVL-EG.cfm
-bash-2.05b$
8658384 7%/usr
/dev/ad4s1f 8172302982 7517536 0%/var
-bash-2.05b$
What do you expect to see?
A raid1 is a mirror set and to the OS would probably look like a single
drive if it truly is a HW raid
Chad
___
freebsd-questions@freebsd.org
%/dev
/dev/ad4s1d 66008394 24 60727700 0%/home
/dev/ad4s1e 10154158 683442 8658384 7%/usr
/dev/ad4s1f 8172302982 7517536 0%/var
-bash-2.05b$
What do you expect to see?
A raid1 is a mirror set and to the OS would probably look like a
single drive
10 100%/dev
/dev/ad4s1d 66008394 24 60727700 0%/home
/dev/ad4s1e 10154158 683442 8658384 7%/usr
/dev/ad4s1f 8172302982 7517536 0%/var
-bash-2.05b$
What do you expect to see?
A raid1 is a mirror set and to the OS would probably look like a
single
1 10 100%/dev
...
What do you expect to see?
A raid1 is a mirror set and to the OS would probably look like a single
drive if it truly is a HW raid
This should be true of any hardware RAID level, not just RAID1. The
HW RAID presents logical drives to the OS, which
%/
devfs 1 10 100%/dev
...
What do you expect to see?
A raid1 is a mirror set and to the OS would probably look like a
single
drive if it truly is a HW raid
This should be true of any hardware RAID level, not just RAID1. The
HW RAID presents logical drives to the OS
On Thursday 27 January 2005 23:12:23, Chad Morland wrote:
http://members.chello.at/freebsd-5.3/bonnie-gmirror/summary
http://members.chello.at/freebsd-5.3/bonnie-gmirror/detail
I expect to see data transfer rate increase when you break the mirror.
RAID1 has the higest disk overhead of all
Got a live system I'm trying to setup RAID1 on, using gmirror. This is my first
attempt at such a thing.
Two hard-disks: ad0 has a UFS2+softupdates formatted / partition and a swap
partition. ad2 is a clean disk.
I've been following the instructions @:
http://people.freebsd.org/~rse/mirror/
I
On Thursday 27 January 2005 14:05:14, Andrew Lewis wrote:
[...]
-bash-2.05b# gmirror insert gm0 /dev/ad0
Provider ad0 too small.
^- Oops.
This tells you that the mediasize of your disk ad0 is smaller than the
mediasize of your mirror on ad2. In simple words, disk ad0 seems to be
smaller
What happens in terms of performance when a drive in a RAID1 system
fails? Will disk access be slower because it attempts to read/write to
a failed disk or will performance be faster because it doesn't need to
do half the work it usually does?
-CM
What happens in terms of performance when a drive in a RAID1 system
fails? Will disk access be slower because it attempts to read/write to
a failed disk or will performance be faster because it doesn't need to
do half the work it usually does? I couldn't really find any online
resources that deal
On Thu, Jan 27, 2005 at 03:14:46PM -0500, Chad Morland wrote:
What happens in terms of performance when a drive in a RAID1 system
fails? Will disk access be slower because it attempts to read/write to
a failed disk or will performance be faster because it doesn't need to
do half the work
On Thursday 27 January 2005 21:14:21, Chad Morland wrote:
What happens in terms of performance when a drive in a RAID1 system
fails? Will disk access be slower because it attempts to read/write to
a failed disk or will performance be faster because it doesn't need to
do half the work
http://members.chello.at/freebsd-5.3/bonnie-gmirror/summary
http://members.chello.at/freebsd-5.3/bonnie-gmirror/detail
I expect to see data transfer rate increase when you break the mirror.
RAID1 has the higest disk overhead of all RAID configurations and is
very inefficient in that regard
Chad Morland wrote:
What happens in terms of performance when a drive in a RAID1 system
fails? Will disk access be slower because it attempts to read/write to
a failed disk or will performance be faster because it doesn't need to
do half the work it usually does?
Read access will become slower
I have an ICH6 SATA RAID controller that I have set up with atacontrol to
behave as a RAID1 array. The array (ar0) consists of ad4 and ad6. Last
night I started a dump like so:
# dump -0Luaf /dev/da0s1 /
to *hopefully* dump my root filesystem (ar0s1a) to a usb storage device.
Now here is where
Toomas Aas wrote:
1. Attach one of the new drives to free ICH4 IDE port on motherboard,
partition it and transfer the data using dump/tar.
At this stage, I would recommend doing this in single user mode, to keep
filesystem modifications during the procedure down. I typically use
dump for all
Derek wrote:
Toomas Aas wrote:
1. Attach one of the new drives to free ICH4 IDE port on motherboard,
partition it and transfer the data using dump/tar.
At this stage, I would recommend doing this in single user mode, to keep
filesystem modifications during the procedure down.
Yes, that was my
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On Friday 14 January 2005 18:47, Toomas Aas wrote:
Derek wrote:
But if it is necessary, it should be possible to bring the machine up to
single user mode and modify the fstab there, right? Given, of course,
that the root partition is left on
Toomas Aas wrote:
But if it is necessary, it should be possible to bring the machine up to
single user mode and modify the fstab there, right? Given, of course,
that the root partition is left on ar0s1a.
Yes, that makes fine sense.
Although if you want to feel _really_ good about it, have a live
Toomas Aas wrote:
I have a small server running FreeBSD 4.10, 2 x 80 GB drives mirrored on
Promise TX2 integrated RAID1 controller. I'd like to replace the 80 GB
drives with 200 GB drives.
Here's my current plan:
1. Attach one of the new drives to free ICH4 IDE port on motherboard,
partition
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