> -Original Message-
> From: James Manning [mailto:[EMAIL PROTECTED]]
> Sent: Tuesday, June 27, 2000 6:37 PM
> To: Linux Raid list (E-mail)
> Subject: Re: performance statistics for RAID?
>
> [Gregory Leblanc]
> > Is there any chance of keeping track of these with software RAID?
>
> AFAI
[Gregory Leblanc]
> Is there any chance of keeping track of these with software RAID?
AFAIK, sct's patch to give sar-like data out of /proc/partitions gives
all of the above stats and more... neat patch :) The user-space tool
should be in the same dir. And, FWIW, I get asked about how people ca
[Henry J. Cobb]
> but if you've got a journaling filesystem, wouldn't you want to expose the
> raw disks to it so it can choose to put the journals on different disks
> than the files?
Funny, since sct/ext3 is the only one that appears to be pushing to keep
alive the possibility of journaling to
[[EMAIL PROTECTED]]
> Yes, I know that. Unfortunately, I'm working on an extremely
> insert-heavy application (over 100 million records per day). I would
> really like ReiserFS (due to the large file size as well as for the
> journaling). I don't see how RAID5 can meet my needs.
FWIW, ReiserFS
On Tue, 27 Jun 2000, Gregory Leblanc wrote:
> There are (or at least were in 2.2.14/15) some endian-ness issues with
> persistent superblocks. There was a patch, and a location to download the
> patch, posted to this list a while ago, unfortunately I didn't keep that
> mail, so you'll have to che
Hi,
when the kernel (2.2.12 on RH6.1) boots, I see this:
d: superblock update time inconsistency -- using the most recent one
freshest: sdg1
md: kicking non-fresh sdb1 from array!
unbind
raid5: md0, not all disks are operational -- trying to recover array
md0: no spare disk to reconstruc
I just read that message from James Manning on some performance tuning, and
it made me think about this. On some of our RAID controllers, they collect
statistics for the RAID volumes. The one that I'm thinking of collects
things like this, except that I've trimmed some of the irrelevant
informat
Please excuse a clueless newbie question here,
but if you've got a journaling filesystem, wouldn't you want to expose the
raw disks to it so it can choose to put the journals on different disks
than the files?
This would not only help with performance, but it would also make recovery
as simple a
Hi James, thanks for the info.
>> I was wondering if there is a way to convert without reformatting?
James> Not currently, although it may be worth reconsidering a
James> conversion from 5 -> 0 if you can alleviate your performance
James> problems with other methods (chunk size, -R stride=, reis
[[EMAIL PROTECTED]]
> I find that my RAID5 array is just too slow for my DB application. I
> have a large number of DB files on this array. I would like to
> convert to RAID0, and I can back up my files, but I was wondering if
> there is a way to convert without reformatting?
Not currently, alt
On Tue, Jun 27, 2000 at 05:19:28PM -0400, James Manning wrote:
> [blair christensen]
> > hello,
> > rh 6.2 on a dell poweredge 4400 box. it was running 2.2.14-5 with a
> > raid 0 array. i upgraded the kernel to 2.2.16 and i am now having
> > problems with the raid device (/dev/md0).
>
> You di
[blair christensen]
> hello,
> rh 6.2 on a dell poweredge 4400 box. it was running 2.2.14-5 with a
> raid 0 array. i upgraded the kernel to 2.2.16 and i am now having
> problems with the raid device (/dev/md0).
You didn't patch your 2.2.16 (www.redhat.com/~mingo/raid-patches)
> when i try to
I find that my RAID5 array is just too slow for my DB application. I
have a large number of DB files on this array. I would like to
convert to RAID0, and I can back up my files, but I was wondering if
there is a way to convert without reformatting?
Dave
> Hi..
>
> does anyone know, if it is possible to run more than two ide
> controllers in one pc??
>
Sure, apply the linux-ide patch found on kernel.org
One of my systems has the usual dual ide controllers + a
promiseUltra66 for a 3 controller raid -- very fast
[EMAIL PROTECTED]
Hello,
I'm trying to get LVM 0.8 on top of Ingo's 0.9 RAID patches with 2.2.16
(this appears to be the same issue as applying LVM on top of a RedHat
kernel, which came up on the LVM list a few times, but was never answered).
There is a problem with applying the LVM patch to ll_rw_block.c, which
I
> -Original Message-
> From: Robert [mailto:[EMAIL PROTECTED]]
> Sent: Tuesday, June 27, 2000 10:22 AM
> To: [EMAIL PROTECTED]
> Subject: Raid level 0 on an SMP Sparc 20
>
> I am converting a Sparc-station 20 to linux, specifically
> RedHat 6.2. I
> have been having lots of problems wit
hello,
rh 6.2 on a dell poweredge 4400 box. it was running 2.2.14-5 with a
raid 0 array. i upgraded the kernel to 2.2.16 and i am now having
problems with the raid device (/dev/md0).
when i try to mount the device, i get:
# mount /home
mount: wrong fs type, bad option, bad superblock on /dev/
Udo Jocher wrote:
>
> Yes, this latest rpm kernel contains already the
> linux-2.2.16-raid-B2.patch
What's that? 2.2.16-B2? It has not been announced, AFAIK. Where's the
difference between it and A0?
Marc
--
Marc Mutz <[EMAIL PROTECTED]>http://marc.mutz.com/Encryption-HOWTO/
Univers
I am converting a Sparc-station 20 to linux, specifically RedHat 6.2. I
have been having lots of problems with getting my RAID array to work. I
have experience with RAID-0 and RAID-1 working fine on Intel processors.
This is my first attempt at using Linux (and RAID) on a Sparc. I have
tried ma
On Tue, 27 Jun 2000, Hugh Bragg wrote:
> Does this latest rpm kernel contain the raid-2.2.16-A0 patch?
Yes, this latest rpm kernel contains already the
linux-2.2.16-raid-B2.patch
> I tried applying the patch but it failed miserably with
> Reversed (or previously applied) patch detected! Assume
On Tue, Jun 27, 2000 at 09:40:51AM +0200, Chencho wrote:
> How can I add a disk to a raid 5.I have created a raid 5,
> but I dont know how add a new disk.
Assuming you mean "add a new disk to expand the size of the array",
at the moment:
1) backup the data
2) remove and re-cre
Does this latest rpm kernel contain the raid-2.2.16-A0 patch?
I tried applying the patch but it failed miserably with
Reversed (or previously applied) patch detected! Assume -R? [n] y
The same patch applied to the 2.2.16 tar ball perfectly.
Is there another patch I should apply?
Hugh.
amadei> I am using RAID0 with Reiser... there was a problem with using RAID5 on
amadei> Reiser until recently... it's been fixed now.
Are you sure... I am asking because in their FAQ they still say :
Can I use ReiserFS with software RAID.
Not with raid5, our journaling and their raid code
hcobb> >Something very similar happened to me and in the end I add to reconstruct
hcobb> >60.000 mail accounts with some thousands email messages lost...
hcobb>
hcobb> You signed up 60,000 customers between your nightly backup and the failure
hcobb> point? I want to know where you advertise!
C
On Tue, 27 Jun 2000, Thomas Waldmann wrote:
> > I am using RAID0 with Reiser... there was a problem with using RAID5 on
> > Reiser until recently... it's been fixed now.
>
> Do you have a pointer (URL) to any original statement of RAID/reiserfs authors
> stating that "it is fixed now" ?
Actuall
I have a system 4 with promise ide controllers as well as the two onboard
controllers with one disk on each channel. I haven't tested performance for
the 2.2.16 kernels, however 2.2.14 had poor write performance if there
was a disk on both the controllers on a single card.
cheers
On Tue, 27 Jun
> I am using RAID0 with Reiser... there was a problem with using RAID5 on
> Reiser until recently... it's been fixed now.
Do you have a pointer (URL) to any original statement of RAID/reiserfs authors
stating that "it is fixed now" ?
I´m asking because I did not read any statement of them yet -
On Tue, 27 Jun 2000, Neil Brown wrote:
> If you don't have raidsetfaulty (so RedHats don't have it), grab the
> latest raidtools from
>
>http://www.{country}.kernel.org/pub/linux/daemons/raid/alpha/raidtools-19990824-0.90.tar.gz
I think you can get more recent raidtools from
http://people.re
Hi, it's my first question in this list. First, I'm sorry
for my bad english. And now my question.
How can I add a disk to a raid
5. I have created a raid 5, but I dont know how add a new
disk.
Thank
You.
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