> From [EMAIL PROTECTED] Sun Aug 13 12:58:36 2000
>
> Anyone used the DC690 under Linux? Its a PCI card, 2 IDE busses,
> no CDROM support, with 4 30pin SIMM slots. Supposedly does mirroring,
> all of which is transparent to the OS. It doesn't require any DOS
> drivers. Any pointers would be a
> From [EMAIL PROTECTED] Sun Aug 13 12:00:21 2000
> [snip]
>
> So, the final unanswered question is why did the Mylex controler failed
> that ungracefully if no disk contains dead blocks ?
> My experimental conclusion is that Linux software RAID is even more
> reliable (the two RAID set
> From [EMAIL PROTECTED] Sun Aug 6 21:45:04 2000
>
> Andrea Arcangeli ([EMAIL PROTECTED]) wrote on 3 August 2000 19:55:
> >>On Aug 2, 7:12pm, Andrea Arcangeli wrote:
> >>} Subject: raid-2.2.17-A0 cleanup for LVM
> >>
> >>> This patch cleanups the new raid code so that we have a chance that
> From [EMAIL PROTECTED] Sat Jul 15 19:29:44 2000
>
> Edward Schernau wrote:
>
> > Wow, an email CCed to Linus himself! *faint*
>
> Well do you know of another way to get a patch into the kernel ??
So if Linus gets hit by a bus (or a fast moving hari krishna), how
are folks to get things into
> From [EMAIL PROTECTED] Tue Jul 11 05:21:43 2000
>
> Hi!
>
> > or just brilliant driver design by Leonard Zubkof, but the Mylex
> > cards are the performance king for hardware RAID under Linux (and
> I was suprised to hear that. We just bought a Mylex AcceleRAID
> 250 with five 18G IBM disks
> From [EMAIL PROTECTED] Mon Jul 10 18:43:11 2000
>
> > There are some (pre) test
> > versions by Linux and Alan Cox out awaiting feedback from testers, but
> > nothing solid or consistent yet. Be careful when using these for
> > serious work. Newer != Better
>
> This isn't being planned for t
> From [EMAIL PROTECTED] Mon Jul 10 17:53:34 2000
>
> > If you can take the performance hit, the Mylex ExtremeRAID cards
> > come in a 3-channel variety. You could then split your array
> > into 3 chunks of 3-4 disks each and use hardware RAID instead of
> > the software raidtools.
>
> I've not
I haven't had very good experiences with the Adaptec cards either.
If you can take the performance hit, the Mylex ExtremeRAID cards
come in a 3-channel variety. You could then split your array
into 3 chunks of 3-4 disks each and use hardware RAID instead of
the software raidtools.
Cheers,
Chri
If you can afford it and this is for real work, you may want to
consider something like a Network Appliance Filer. It will be
a lot more robust and quite a bit faster than rolling your own
array. The downside is they are quite expensive. I believe the
folks at Raidzone make a "poor man's" canne
I'm reasonably sure Redhat 6.2 is ready to go out of the box.
BTW, please don't send html mail to the list.
cheers,
Chris
> From [EMAIL PROTECTED] Mon May 29 14:14:34 2000
>
> Hi there,
> I'm wondering if anyone has run into a distribution of linux that =
> has software raid-util's pre-pa
> From [EMAIL PROTECTED] Thu May 25 00:16:30 2000
>
> On Wed, 24 May 2000, Chris Mauritz wrote:
>
> > For the cost of the LPr, you're probably better off going to someplace
> > like Penguin Computing and have them roll something for you that's
> > known t
> From [EMAIL PROTECTED] Wed May 24 20:41:56 2000
>
> On Wed, 24 May 2000, Chris Mauritz wrote:
>
> > Have you SEEN one of these? They are *extremely* deep and are a supreme
> > pain in the ass to deal with unless you have 4 poster cabinets instead
> > of racks.
> From [EMAIL PROTECTED] Mon May 22 23:36:35 2000
>
> Has anyone tried installing a Mylex (either acceleraid or extremeraid)
> card in one of the HP Netserver LPr 2U server systems? HP is currently
> running a 2 for 1 special on them, which just barely makes the price
> attractive...but only if
I've found that those hot swap enclosures tend to be a bit more
reliable when you buy the SCA versions and only use LVD cabling
to connect a group of them to the controller. Calpc and a bunch
of other vendors make rather inexpensive units that are designed
to hold 4 "drive sleds" with only 2 LVD
> From [EMAIL PROTECTED] Wed May 3 20:38:05 2000
>
> Umm, I can get 13,000K/sec to/from ext2 from a *single*
> UltraWide Cheeta (best case, *long* reads, no seeks). 100Mbit is only
> 12,500K/sec.
>
>
> A 4 drive UltraWide Cheeta array will top out an UltraWide bus
> at 40MByte/sec
There's "specs" and then there's real life. I have never seen a hard drive
that could do this. I've got brand new IBM 7200rpm ATA66 drives and I can't
seem to get them to do much better than 6-7mb/sec with either Win98,
Win2000, or Linux. That's with Abit BH6, an Asus P3C2000, and Supermicro
PI
> From [EMAIL PROTECTED] Sun Apr 23 01:06:24 2000
>
> Chris Mauritz wrote:
> >
> > > From [EMAIL PROTECTED] Sat Apr 22 21:37:37 2000
> > >
> > > Hi, im just wondering has anyone really explored the performance
> > > limitations of linux rai
> From [EMAIL PROTECTED] Sat Apr 22 21:37:37 2000
>
> Hi, im just wondering has anyone really explored the performance
> limitations of linux raid ?
>
> Recognising ones limitations is the first step to overcomming them.
>
> Ive found that relative performance increases are better with less
> d
> From [EMAIL PROTECTED] Wed Apr 19 21:07:22 2000
>
> I was wondering if anyone here knew the status on the drivers for the
> Mylex ExtremeRaid 2000 card. Are they in beta yet?
>
> In the next 1-2 months I'm going to need a new raid card and could really
> use the 2000 over the 1100. (need th
Yes, that is what I thought too. If slowing the bus down causes the
problems to disappear, it's almost certainly a cabling or termination issue.
Cheers,
Chris
- Original Message -
From: "Gregory Leblanc" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Tuesday, April 18, 2000 2:28 PM
Are you SURE it's not a cabling issue? I've had 2940U2w cards act strangely
both under Linux and NT when there were problems with cables or terminators.
I've gotten into the habit of using SCA drive cages and keeping the LVD
cable lengths to a minimum (just between the cage and the controller).
A
> From [EMAIL PROTECTED] Sun Apr 16 16:33:31 2000
> > -Original Message-
> > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]
> > Sent: Sunday, April 16, 2000 10:42 AM
> > To: [EMAIL PROTECTED]
> > Cc: [EMAIL PROTECTED]
> > Subject: Re: Fw: Adaptec AAA-133U2 Raid Controller support
> >
Whoever "assured" you didn't know what they were talking about.
This controller is not supported by Linux AT ALL. It will not
work. It is a windows-only product. There are a number of other
products that are supported under Linux. I happen to like the
Mylex ExtremeRAID cards. They seem to be
Just thought you guys would find it amusing that this card
worked just fine with vanilla Redhat 6.1, but gives blue
screens with both NT4 and Win2K Server. Mylex swears it is
a hardware issue and is the result of bugs in the Intel Carmel
840 chipset. I find that difficult to believe as the cont
The promise cards are nice. You can buy the cheap ata/66 ones and add one
resistor to convert them into their fastrack hardware RAID controller. See:
http://www.geocities.com/promise_raid/english.htm
The cards only cost about $25 on pricewatch.com. So you can get two
hardware RAID IDE control
.8 10519 15.5 11825 96.2 66560 28.8 346.6
2.0
Chris Mauritz
[EMAIL PROTECTED]
Independent Music Network
With the popularity of these new 1 RU pizza box server enclosures,
I was wondering what people are doing to get better disk throughput.
Normally these cases only hold one hard drive. Seems like if
someone made a PCMCIA drive cage that fit in a floppy disk form
factor, you could connect that to s
> From: "Rafael Gustavo Gassner" <[EMAIL PROTECTED]>
>
> Does anyone have a suggestion for a good raid adaptec controller for
> using under linux?
None of the Adaptec RAID cards are supported under Linux.
Regards,
Chris
--
Christopher Mauritz
[EMAIL PROTECTED]
Another amusing thing about those controllers (once a driver becomes
available) is the cheap hack to turn the cheap $35 dual channel ATA66
controller into the $130 dual channel RAID card by adding one resistor.
Details at:
http://www.geocities.com/promise_raid/english.htm
I'm going to start usin
Those aren't terribly impressive numbers. With that many spindles and that
much cpu, you ought to be getting double or triple the performance I see
below, no?
I'm attaching numbers from one of my servers. It happened to be a bit busy
at the time (it's the company's mail server among a few other
If the system in question is idle, I would agree that a modern single or
dual processor machine probably has plenty of spare cycles to calculate
parity. However, odds are that the machine is doing real work (or you
wouldn't care about RAID 5 and would just use RAID 0) AND has valuable data.
If it
> Best I remember, the 4K block size made a fairly large improvement over
> > absolute defaults.
> >
> > I didn't have time to tweak any settings on the 1164
> >
> > This was a stock redhat 6.0 system.
> >
> > Unfortunately, box only ran linux for
enclosure
with 8 18gig 10,000rpm IBM Deskstars and one hot spare. Can anyone hazard a
guess at the kind of performance I can expect from such an array?
Cheers,
Chris
Chris Mauritz
[EMAIL PROTECTED]
Anyone here using one of these on an actual production box? Are
there any linux tools to manipulate the controller/drives without
rebooting or must you do it all from the controller bios on a reboot?
Cheers,
Chris
--
Christopher Mauritz
[EMAIL PROTECTED]
Both Penguin Computing and VA Linux will also ship preconfigured RAIDed
Linux boxes. They also have nifty 1U and 2U rackmount systems available.
www.penguincomputing.com
www.valinux.com
Cheers,
Chris
> From [EMAIL PROTECTED] Thu Jan 13 10:19:06 2000
>
> Louis-David,
>
> Monolith Corporation
> From [EMAIL PROTECTED] Tue Jan 11 21:44:29 2000
>
> On Tue, 11 Jan 2000, Gregory Leblanc wrote:
> > If you cut the cable
> > lengthwise (no, don't cut the wires) between wires (don't break the
> > insulation on the wires themselves, just the connecting plastic) you can
> > get your cables to be
> From [EMAIL PROTECTED] Sun Jan 2 07:24:21 2000
>
> is it supported by Linux ?
No.
Cheers,
Chris
--
Christopher Mauritz
[EMAIL PROTECTED]
> From [EMAIL PROTECTED] Sun Dec 12 12:18:48 1999
>
> It sounds like 2.3.29 forgot the raidtools patch to be included.
> try patching it and enter N to any errors then try again.
SighAgain?
It would be really really nice if the kernel maintainers would
recognize the relative stability of th
> From [EMAIL PROTECTED] Tue Oct 5 22:48:26 1999
>
> Hi everyone--
>
> I have a question for everyone on the list: What hardware would you use
> for a RAID system? I want it to be as robust as possible. It does not need
> to be all that fast (equiv. or better than UDMA33 would be nice).
I'm getting the occasional error message of the form:
(scsi0:0:0:0) Parity error during Data-In phase.
This is on a 150gig stripeset using 3 50gig barracudas on
an Adaptec 2940u2w controller. The kernel is 2.2.12 with
the 2.2.11 raid patches.
I don't think these really are parity errors as tha
Are you sure you're not having some sort of cabling/termination
issue?
C
> From [EMAIL PROTECTED] Wed Sep 22 11:15:58 1999
>
> Hi people,
>
> I'm running kernel 2.2.12 with 2.2.11 raid patch. Everything seems to be
> ok, except that
> i cannont manage to retreive an scsi disk from one of my
Just thought I would drop this note to the list. A couple of my 50gig
drives were "repurposed" before I could run the test so this is only
a 3 disk RAID 0 stripeset. The production system will have 8 drives
(4 on each channel). I'm wondering if this will scale linearly and
give me over 100mb/se
I'm confused. You're using 2 devices of apparently equal size (which I assume
means they're the same kind of device). However, you have one defined as an
IDE disk and one defined as a SCSI disk in your raidtab file. Could that be the
problem?
> From [EMAIL PROTECTED] Thu Sep 16 19:38:15 1999
>
> From [EMAIL PROTECTED] Wed Sep 15 13:50:22 1999
>
> Good morning to everyone.
>
> > correct me if I'm wrong, but I think the current recipe is patching 2.2.12
> > with the latest raid alpha patch (for 2.2.11) and when patch complains
> > about fs.h, tell it to completely skip fs.h since change
> From [EMAIL PROTECTED] Tue Sep 7 11:50:39 1999
>
> What is the most reliable LVD SCSI controler for Linux ?
>
> (I use several Buslogic controlers, but as far as I know they don't
> have an LVD version, which is absolutely necessary for long SCSI chains,
> and my Buslogic controlers went in
As I mentioned in my original note, the system is a dual PIII-500
system that will be dedicated as a file server. So there is plenty
of cpu grunt to service a software RAID. I agree that the performance
numbers seem to lean heavily in favour of software RAID over the
currently available hardwar
I'm in the process of setting up a system for my company and need a bit
of advice. We'd like to have a huge flat filesystem connected to a dual
processor RH 6.0 system. I've got a dual PIII-500 system with 256mb RAM
and dual Adaptec LVD scsi controllers. I was planning to plop the OS
on a mirro
> From [EMAIL PROTECTED] Thu Aug 12 06:43:26 1999
>
> Hi all,
>
> is there a Linux driver for the ARO1130-u2 hardware RAID card?
No.
> I found a clear statement in the compatibilitie list that the card and its
>predecesors
> are not supported by Linux.
Um...that's a pretty good indication th
hat would be a good choice for a raid controller card for linux?
>
> On Monday, July 26, 1999 2:42 PM, Chris Mauritz [SMTP:[EMAIL PROTECTED]] wrote:
> > I'm positive it will not work. It also doesn't work very well with
> > NT. I scrapped the one we had after it corrupt
't support it under linux.
> I guess I was hoping that it would work anyway using one of the existing
> drivers. Is this not the case?
>
> On Monday, July 26, 1999 1:58 PM, Chris Mauritz
> [SMTP:[EMAIL PROTECTED]] wrote:
> > This card isn't supported by linux. As fa
This card isn't supported by linux. As far as I know, Adaptec
only supports NT for this particular card.
Chris
> From [EMAIL PROTECTED] Mon Jul 26 16:56:34 1999
>
> I'm installing a hardware RAID under Linux for the first time and have read
> the DPT Hardware RAID HOWTO but I'm still in need
> From [EMAIL PROTECTED] Mon May 31 00:47:50 1999
>
> > I just returned an DPT 2044UW controller and caching module,
> > performance was AWFUL. Before I buy a ICP Vortex controller, I
> > wanted to see if anyone knows about any other alternatives.
>
> I thought somoene might know how the perform
> From [EMAIL PROTECTED] Sat May 29 17:30:30 1999
>
> hi bobby
>
> > I'm looking for a Linux HARDWARE RAID solution that supports booting from
> > the RAID. The hardware I know about that supports this:
> >
> > DPT
> > ICP Vortex
>
> Mylex DAC960
> Megatrends MegaRAID 428
> Dell PERC - PowerEd
> From [EMAIL PROTECTED] Tue Mar 23 09:12:04 1999
>
> Hands-down it''s ICP. I have 2 Linux systems getting pounded in production
> using RAID5, have had the drives fail and the hot swap failoer worked great.
I would have to agree. I had one system under heavy production load
with an ICP card an
I'd be curious to know what particular card(s) are best supported for
hardware RAID 5 under Redhat Linux 5.2. I've been using the software
RAID tools provided by mingo, but I think I need something a bit more
"static" that I can use in production.
I saw a note here not long ago about support for
> From [EMAIL PROTECTED] Wed Feb 10 11:27:46 1999
>
> Hi,
>
> it might be the wrong list(s) to ask, but I there is still a chance that
> someone can help me.
>
> Does anybody has some experiences with 'Fibre Channel' and know, if
> there is some support under Linux?
Doesn't ICP Vortex make a f
> From [EMAIL PROTECTED] Tue Feb 9 08:57:47 1999
>
> Hi!
>
> Anybody out there with some real world experiences
> concerning HP's NetRaid (which is Symbios/NCR 53c8xx
> based OEM stuff and may be covered by NCRs megaraid
> driver, afaik) which comes with HP NetServer LH3 models?
I'd also be
> From [EMAIL PROTECTED] Tue Jan 19 10:52:47 1999
>
> | Hmm. I use SCSI on high-performance systems, but if IDE is so bad, why
> | does NASA use IDE? ;)
>
> as far as I know, beowulf tends to use the network more than the disk, so it
> isn't necessary to have an extremely fast disk subsystem.
> From [EMAIL PROTECTED] Wed Jan 6 11:25:19 1999
>
> Jack Gavigan wrote:
> >
> > >While I'm not new to Linux or RAID, I am new to RAID on Linux.
> > >I've read the Root-RAID-HOWTO about 10 times and I'm about as
> > >confused as when I first started.
> >
>
> > My question, I guess, is: Am I r
I had all kinds of problems with Adaptec SCSI controllers (both the
2940 and the 3-channel UW RAID card) on the Tyan board with linux
and NT. Adaptec says it's the motherboard. I'm inclined to agree
since switching to a Mylex 952 showed the same symptoms (same as yours).
Chris
> From [EMAIL PR
I'm running 2.1.127 + patches and raidtools 0.90.
The system has a main system disk (non-raid) that it boots from and
a pair of 9gig barracudas running in RAID0. I can start and mount
the raid device manually, but when I try to enable autostart, the
system hangs during boot with the following me
I had a system running a striped pair of 9gig barracudas in
raid 0 mode in addition to the main system disk. It was running
2.1.125 + whatever the latest version of raidtools was about 6
weeks ago. The system disk on that system died and I'd like to
put the pair of striped disks on another syste
> From [EMAIL PROTECTED] Thu Dec 17 15:15:04 1998
>
> > You should be able to disable the integrated SCSI controller from the
> > motherboard BIOS configuration utility (usually by hitting DEL at boot
> > time).
>
> I think that misses the point, I think the goal was to get both going
> in order
> From [EMAIL PROTECTED] Thu Dec 17 13:37:24 1998
>
> I know this may be more of a hardware question than a specific RAID
> question, but here goes. I just got a DPT RAID controller, but my
> motherboard has a built-in scsi controller. So I have two scsi
> controllers. My problem is that I hav
Is anyone else working on the documentation? I'm willing to help
updating them and have a well connected machine with lots of space
to host the results. If nobody else is working on this, I'll do
it myself and submit the results to mingo for a sanity check before
I make it publicly available.
R
Just wondering what the linux raid folk are using for hot swappable
carriers. I haven't been able to find a brand I'm happy with (tried
Antec and Kingston brands).
Chris
--
Crack the RSA RC5-64 encryption algorithm. Use your idle cpu
cycles to take part in the fastest computer on the planet
> From [EMAIL PROTECTED] Sat Nov 14 13:57:10 1998
>
> > > AMD K6-233
>
> 64M
>
> > [...]
> > > 2 x fast/wide/ultra 9.1gig 7200rpm disks (/export) ---> /dev/md0
> > [...]
> > > ---Sequential Output ---Sequential Input-- --Random--
> > > -Per Char- --Block-
> From [EMAIL PROTECTED] Thu Nov 12 11:04:31 1998
>
> I run a RAID0 mirror off the DualFire, just get Gerald's latest
> patches for best performance. I did a semi-apples&oranges comparison
> with Bonnie, the RAID0 made of identical old FUJITSU M1606S-512 drives
> versus MICROP 4341WS. The 4341
I just did a virgin install of RH 5.1 on a machine. I upgraded the
kernel to 2.1.125 and installed raidtools-0.90 and tried to stripe
2 9gig barracudas as md0. I edited the raidtab file (included below)
and ran raidstart -a. It gives the following error:
# /sbin/raidstart -a
/dev/md0: In
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