> the latest 2.2 (production) RAID code against 2.2.16-final can be found
> at:
>
> http://www.redhat.com/~mingo/raid-patches/raid-2.2.16-A0
>
> let me know if you have any problems with it.
>
I hate to bother the list with this, but...I have been unable to get
Redhat 6.1/2.2.16+raid-2
On Mon, 12 Jun 2000, Matthew Kirkwood wrote:
> I suspect that I did something silly, but is there a
> way to bring up the array without bring sda5 into the
> picture to see if there's only the one broken disk?
Hi,
Apologies for the self-followup, but I could do to start
restor
there a
way to bring up the array without bring sda5 into the
picture to see if there's only the one broken disk?
Matthew.
raiddev /dev/md4
raid-level 5
nr-raid-disks 3
chunk-size 64k
persistent-superblock 1
#nr-spare-disks
> the latest 2.2 (production) RAID code against 2.2.16-final can be found
> at:
>
> http://www.redhat.com/~mingo/raid-patches/raid-2.2.16-A0
>
> let me know if you have any problems with it.
>
Should CONFIG_AUTODETECT_RAID be defined in md.c? I can manually start
the raid and have it s
> the latest 2.2 (production) RAID code against 2.2.16-final can be found
> at:
>
> http://www.redhat.com/~mingo/raid-patches/raid-2.2.16-A0
>
> let me know if you have any problems with it.
>
What version of raidtools should be used? Is raidtools-0.90-5 sufficient?
Thanks! - mattd
problem.
> If you change the disk ordering in /etc/raidtab or have had to
> raidhotremove/raidhotadd any disks THEN it will destroy your data.
>
> ----- Original Message -
> From: "Matthew Burke" <[EMAIL PROTECTED]>
> To: "James Manning" <[EMAIL PRO
On Mon, 29 May 2000, James Manning wrote:
> Sure makes it look like hdc3 has some major issues. It has a partition
> type of fd, but invalid raid superblock. Makes me wonder if e2fsck
> didn't get run on hdc3 itself and it "fixed" that last part (hope not
> since it may have done some real su
Hi. I'm in URGENT need of some help.
After changing motherboards in one of my boxes to a Via VB601, I forgot to
disable the UDMA setting in the bios. This is needed because this mobo,
my Seagate 6.5Gb drives, and UDMA don't mix.
The result was the kernel segfaulted/panicked after fscking /dev
How do I add a spare disk to an existing RAID?
Thanks
Matthew Opoka
siliconsulting
3210 Wisconsin Ave Suite B
Vicksburg, MS. 39180
email: [EMAIL PROTECTED]
voice: 601.638.1400
fax: 601.638.1426
isk 2 or
3 then it locks up after freeing kernel memory.
Any ideas?
Thanks
Matthew Opoka
siliconsulting
3210 Wisconsin Ave Suite B
Vicksburg, MS. 39180
email: [EMAIL PROTECTED]
voice: 601.638.1400
fax: 601.638.1426
om: Jason Lin <[EMAIL PROTECTED]>
>To: Matthew Leung <[EMAIL PROTECTED]>, [EMAIL PROTECTED]
>Subject: Re: raid tools problem
>Date: Tue, 25 Apr 2000 00:49:37 -0700 (PDT)
>
>Make sure /dev/sda5 and /dev/sdb5 are not mounted when
>
>"/sbin/mkraid /dev/md0" i
Hi,
I upgraded my kernel from 2.0.32 to 2.2.14 and using raidtools-0.90. I
don't know why I
can't initialize the raid disk siucessfully. Could you please let me know
what's the
problem? Besides, is there any documents for troubleshooting of the
raidtools? Thanks
[root@web /etc]# /sbin/mkr
> > I just read the Mylex eXtremeRAID 2000 blurb, and it says it is an
> > "Ultra 160 SCSI to PCI RAID Controller." I'm not familiar with Ultra
> > 160... is that hardware compatible with my UW SCSI drives?
>
> SCSI is SCSI, unless it's differential (LVD, VHVD, etc). So yeah, they
> should wor
Is swapping on Hardware RAID safer than software RAID?
Matthew Clark.
less
than 128Mb
Read performance is excellent!
Most importantly though, our Web Application (heavy random type IO - MySQL
database) runs real fast.. I'm doing some stress tests today with SSL
enabled to see how it copes under pressure.
HTH
Matthew clark.
64Kb
Write Policy: WriteThru
Read Policy: Adaptive
Cache Policy: DirectIO
the file system was made with mke2fs -b 4096 -i 8192
(I now have v1.07 of the megaraid.. no performance fixes tho)
Matthew
>
> [ Tuesday, March 7, 2000 ] Matthew Clark wrote:
> > Hey guys.. I just installed and r
reads.. sequential or random!!!
Matthew Clark.
> -Original Message-
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED]]On Behalf Of Brian Pomerantz
> Sent: 08 March 2000 17:28
> To: Matthew Clark
> Cc: Brian Pomerantz; [EMAIL PROTECTED]
> Subject: Re: Benchmarking.. how ca
Under what circumstances are you "only" achieving 26MB/s - what file size?
was it random or sequential?
> -Original Message-
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED]]On Behalf Of Brian Pomerantz
> Sent: 08 March 2000 05:07
> To: [EMAIL PROTECTED]
> Subject: Re: Benchmarking..
om ami.com.
Any ideas how I can get more performance out of this machine? What is the
best configuration when creating the filesystem? I used mke2fs -b 4096 -i
8192 ...
Any help would be most appreciated!!
Regards,
Matthew Clark.
n 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]
--
Matthew Marlowe
There are no widely recognised certification schemes that I
know of.
Matthew Clark.
the hardware you buy is supported..
With all the FUD that flies around about the suitability/stability of Linux,
the old saying "No one ever got fired for buying Solaris/HP/NT" probably
scares many away from Linux.
Matthew Clark.
> -Original Message-
> From: [EMAIL PROT
not
> matching your guaranteed availablities (ie. for recource demands)?
>
> Dirk
--
Matthew Marlowe http://www.jalan.com/ (p) 909.799.3805
[EMAIL PROTECTED] Jalan Network Services (f) 909.799.3285
"Quality Web Hosting, Network, Linux, and Solaris Consulting"
r 1999 13:57
> To: [EMAIL PROTECTED]
> Subject: RE: Performance MegaRAID
>
>
> At 01:35 PM 11/15/1999 +, Matthew Clark wrote:
>
> >I'm going to try adding memory & a processor.. when we use
> Bonnie, the CPU
> >usage sometimes hits 97%.. this can&#x
CPU
usage sometimes hits 97%.. this can't be good!
Matthew Clark.
> -Original Message-
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED]]On Behalf Of Jarno Lahteenmaki
> Sent: 15 November 1999 12:37
> To: Matthew Clark
> Cc: linux-raid
> Subject: Re: Performan
16Mb out of a possible 128Mb.. it has
been suggested that this could be the cause of an IO bottleneck we're having
with an HP NetServer LH4...
Regards,
Matthew Clark.
--
NetDespatch Ltd - The Internet Call Centre.
http://www.netdespatch.com
ore
> Sent: 11 November 1999 22:16
> To: Matthew Clark
> Cc: linux-scsi; linux-raid
> Subject: Re: MegaRAID vs Mylex
>
>
> Mylex does from my tests. Mylex does very well in fact.
>
> --
> Brian D. Haymore
> University of Utah
> Center for High Performance Computing
Which gives better performance on Linux???
Regards,
Matthew Clark.
--
NetDespatch Ltd - The Internet Call Centre.
http://www.netdespatch.com
Guys n gals,
Does anyone here use a MegaRAID Hardware RAID controller? If yes, what is
your performance like? On a 500Mb file copy (from sda -> sda) we get around
2.5Mb per second.. it seems very low. At worst, we have had 456k per sec.
Regards,
Matthew Clark.
--
NetDespatch Ltd -
.
Regards,
Matthew Clark.
at least 15+ MB/sec from this array (Bonnie, Write Chars)
as I get around 8MB per sec from a single IDE drive..
Theoretically, it should be 20+ MB/sec shouldn't it?
Regards,
Matthew Clark.
booted a patched kernel from
IDE)
They didnt have exactly the same RAID config as we do but achieved excellent
stats with the Megaraid/HP NETRaid controller...
Thanks to all those who responded!
Regards,
Matthew Clark.
> -Original Message-
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL
e two technologies mentioned by James Manning
Matthew Clark.
> -Original Message-
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED]]On Behalf Of Roeland M.J.
> Meyer
> Sent: 02 November 1999 04:22
> To: [EMAIL PROTECTED]; 'linux-raid'
> Subject: RE: PROs and CONs
ed off or
something..
But if that's the only problem.. I'm not bothered as we back up the entire
data partition daily...
Regards,
Matthew Clark.
--
NetDespatch Ltd - The Internet Call Centre.
http://www.netdespatch.com
With the LH4, you can infact disable the AMI Megaraid and access the Symbios
directly.. however - we want to use the RAID...
I've had enough of all this guessing though - I'm going to take it to bits
and find our what's not working (gunna install NT on it and see if we still
get bad performance t
.
I never heard of the i960 controlling controllers like that.. mind you I
never claimed to be a hardware guru :-)
Regards,
Matthew Clark.
> -----Original Message-
> > From: [EMAIL PROTECTED]
> > [mailto:[EMAIL PROTECTED]]On Behalf Of Matthew Clark
> > Sent: 27 October 1999 15:51
> > To: linux-scsi; linux-raid
> > Subject: Please Help - SCSI RAID device very slow
> >
> >
> > Looking
gt; Sent: 27 October 1999 21:08
> To: [EMAIL PROTECTED]; linux-scsi; linux-raid
> Subject: RE: Please Help - SCSI RAID device very slow
>
>
> At 05:39 PM 10/27/1999 +0100, Matthew Clark wrote:
> >Does anyone know how I stop the MegaRAID using the onboard INTEL SCSI
> >C
Does anyone know how I stop the MegaRAID using the onboard INTEL SCSI
Controller? (i960) It should be using my SYMBIOS card...???
> -Original Message-
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED]]On Behalf Of Matthew Clark
> Sent: 27 October 1999 15:51
> To: li
ANSI SCSI Revision: 02
Any help would be appreciated.. the disk array is running unacceptably
slowly when writing - could this be the cause?
Regards,
Matthew Clark.
--
NetDespatch Ltd - The Internet Call Centre.
http://www.netdespatch.com
that may have an effect on MegaRAID Hardware performance (i.e. pci.*,
megaraid.*, sym3c98xx.* etc) havn't been updated...
Regards,
Matthew Clark.
--
NetDespatch Ltd - The Internet Call Centre.
http://www.netdespatch.com
Ok, so any ideas why it's running so slow though?
Regards,
Matthew Clark.
--
NetDespatch Ltd - The Internet Call Centre.
http://www.netdespatch.com
> -Original Message-
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED]]On Behalf Of Marc SCHAEFER
> Sent: 24 Octobe
By the way, I'm using Linux Kernel 2.2.10 SMP
Matthew.
> -Original Message-
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED]]On Behalf Of Matthew Clark
> Sent: 22 October 1999 14:11
> To: linux-scsi; linux-raid
> Subject: Very slow writes with Hardware S
I cannot figure out from this where the actual problem is.
How do I get it to properly detect my RAID1 set on boot up. I think the
problem relates to the fact that RAID1 is not compiled into the kernel,
I have it as a module. However I think it's possible with lilo to use a
ramdisk to load modules at boot time much like is done for SCSI.
However I don't
I tried the -f and it does the same thing. The only difference is that
it makes me wait 5 seconds before it gives me the same output and fails.
> -Original Message-
> From: Marco Shaw [SMTP:[EMAIL PROTECTED]]
> Sent: Monday, September 06, 1999 11:46 AM
> To: Matthew
>
I am running Mandrake 6.0, I installed the raid tools, and loaded the
raid1 module using insmod raid1. When I issue an lsmod raid1 is
listed.
When I cat the /proc/mdstat file it says:
Personalities : [3 raid1]
read_ahead not set
md0 : inactive
md1 : inactive
md2 : inactive
md3 : inactive
I cre
Tom Livingston wrote:
> Matthew Economou wrote:
> > I've got some pretty big problems with my Linux software RAID(-5) array.
> > This is what I think happened: Two days ago, the power went out on my file
> > server. When the power came back up, the RAID driver au
pretty close to each other.
4. What about "mkraid --force-resync"?
I may try the resync, because it seems to be really close to what you
(and Ingo Molnar (in private email) and Piete Brooks) suggest. But I
*will* wait for your reply. :)
Thank you all for your help,
#\Matthew
really know what I'm doing, but that's probably painfully obvious.
Thanks in advance,
#\Matthew
> But some other cards, like Qlogic FC, don't take such approach, as they do
> all the FC4 protocol housekeeping in hardware and are driven as a normal
> SCSI card with a lot of targets.
Actually, in F/W. It is conceivable that somebody could use a QLA card
with a different f/w set and do the FC
Qlogic isp2100
On Fri, 19 Mar 1999, A James Lewis wrote:
>
> What did you use for the FCAL interface?
>
> On Thu, 18 Mar 1999, Matthew Jacob wrote:
>
> > > Hmm...Disksuite for Linux...wonder if Sun has thought of that?
> > >
> > > Has anyone tried
/raidtools/SSA (or A5000)
> compare to Solaris/Disksuite/SSA or Solaris/VxVM/SSA?
>
> Thanks!
> Gregg Mackenzie
> [EMAIL PROTECTED]
>
> Matthew Jacob wrote:
> >> Hmm...Disksuite for Linux...wonder if Sun has thought of that?
> >>
> >> Has anyone tried hangin
> Hmm...Disksuite for Linux...wonder if Sun has thought of that?
>
> Has anyone tried hanging a Sun SSA or A5000 off of a Linux
> box using raidtools? It seems like Sun *has* thought of
> this one...this came from someone at Sun:
Yes, I've done so.
ds1.nas.nasa.gov > df -k
Filesystem 1024-blocks Used Available Capacity Mounted on
/dev/hda11981000 1152042 726547 61% /
/dev/md0 210337359 97028285 100987226 49% /storage
ds1.nas.nasa.gov >
That's a 210+GB filesystem.
On Tue, 9 Mar 1999, Dietm
> > > > > The Sparc port has full support for point to point and full fc-al
> > > > > fibre channel. This is utilizing Sun's SOC and SOCAL adapter cards.
> > > > >
> > > >
> > > > What about Jaycor (JNI) cards ? They seem to simulate a SCSI
> > > > interface, but with up to 255 disks connected
> > > The Sparc port has full support for point to point and full fc-al
> > > fibre channel. This is utilizing Sun's SOC and SOCAL adapter cards.
> > >
> >
> > What about Jaycor (JNI) cards ? They seem to simulate a SCSI
> > interface, but with up to 255 disks connected :-)
>
> 255? Strange.
> >there is some support under Linux?
> >
> > The Sparc port has full support for point to point and full fc-al
> > fibre channel. This is utilizing Sun's SOC and SOCAL adapter cards.
> >
>
> What about Jaycor (JNI) cards ? They seem to simulate a SCSI
> interface, but with up to 255 disk
Yes, there are a number of adapters that support Fibre Channel, and
there's at least some attempts in Sparclinux to support a full FC4 module.
On Wed, 10 Feb 1999, Kay Salzwedel wrote:
> Hi,
>
> it might be the wrong list(s) to ask, but I there is still a chance that
> someone can help me.
>
ux, badged systems are probably not a good idea...not to mention the fact
that if a HD dies on a badged system, you have to replace it with their
drives which are usually pretty expensive.
Have you looked at valinux servers?
Regards,
Matthew Clark.
> -Original Message-
> From: [EMAIL PROT
Do we HAVE to use EXT2 ? I understand this is a limitation imposed by the
ext2 filesystem rather than the hardware architecture... Is there not a way
to create a different file-system using Linux?
Regards,
Matthew Clark.
> -Original Message-
> From: [EMAIL PROTECTED]
> [mail
Which file-system type would you recommend if we need >2Gb files??? Am I
right in thinking Ext2 only supports 2Gb??? Bit puny these days isn't it?
Regards,
Matthew Clark.
--
NetDespatch Ltd - The Internet Call Centre.
http://www.netdespatch.com
#x27;m sure for normal
database driven web-sites they are OK, but bring heavy writes into the
equation and they're not up to the task!
Best Regards
Matthew Clark.
> -Original Message-
> From: Roeland M.J. Meyer [mailto:[EMAIL PROTECTED]]
> Sent: 19 November 1999 18:05
> To
appreciated! (I just wasted a lot of time working
out that the I/O performance on the Hewlett packard LH4 is unacceptable)
Regards,
Matthew Clark.
> -Original Message-
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED]]On Behalf Of Gerrish, Robert
> Sent: 29 October 199
Hot plugging would be good, but a rotating mirrors backup (this
is similar to what Auspex has been known to do) really
doesn't solve your static/consistent locking problem.
You need to perform locking at the file level, if not block level.
A lot of backup packages will do this, with greater or l
failure or success from anyone using this controller under Linux.
I appreciate anyone's input or criticisms.
Regards,
-Matt.
--
Matthew D. Lammers
NetSet Internet Services, Inc., Columbus, Ohio, US
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