Configs:
- Dual Coppermine 700MHz
- Intel 440GX mobo, FSB 100MHz
- 1Gb ECC SDRAM
- Onboard dual channel Adaptec 7896 U2LVD controller
- Mylex eXtreme RAID 1100 with 32Mb buffer
- 6 Seagate Cheetah 10K RPM LVD drives
- mke2fs -R stride=[stripe-size/ext2fs_blocksize]
- ext2fs_blocksize = 4096 bytes
I am guessing that my problem are the files /etc/md0 and /etc/md1 which
disappeared when I lost my /dev directory. Is there any way to recreate
these short of rebuilding and therefor destroying the underlining data?
Every raid command I try to run gives me the same error message:
Title: Re: md0 won't let go... (dmesg dump...)
I have scrapped the earlier configuration, and have rebuilt a kernel and tried this whole RAID ringmarole again. I am including mdstat, dmesg, and raidtab at the end.
Kernel 2.2.15
ide.2.2.15.2509.patch
raid-2.2.15-A0 (Mingo)
Compiled,
I am guessing that my problem are the files /etc/md0 and /etc/md1 which
I suspect you mean /dev/md0 and /dev/md1 ...
disappeared when I lost my /dev directory. Is there any way to recreate
these short of rebuilding and therefor destroying the underlining data?
Unless I am missing
What does /etc/fstab say? What did /etc/lilo.conf say when you last ran
lilo?
This is a long shot, but previously I have 'conned' myself into thinking
(say)
/dev/hda1 is mounted as root - because fstab says so, and so does 'df'
and stuff - while lilo has told the kernel to mount something
[Harry Zink]
Doing fdisk /dev/hdf works just fine.
Doing fdisk /dev/hdg or /dev/hdk results in the old 'unable to open
hdj/hdk'
ls -l /dev/hd[gk]* ... you make need a later MAKEDEV (or edit yours)
to create all the necessary files
Alright, try turning off the RAID again ...
on 5/17/00 7:16 AM, Martin Munt at [EMAIL PROTECTED] wrote:
What does /etc/fstab say? What did /etc/lilo.conf say when you last ran
lilo?
/etc/fstab:
---
/dev/hda6 / ext2defaults1 1
/dev/hda1 /boot ext2
on 5/17/00 7:21 AM, James Manning at [EMAIL PROTECTED] wrote:
ls -l /dev/hd[gk]* ... you make need a later MAKEDEV (or edit yours)
to create all the necessary files
Not sure what this will help, except confirm again that these volumes aren't
accessible, which was my question to start with.
Harry Zink [EMAIL PROTECTED] said:
on 5/17/00 7:21 AM, James Manning at [EMAIL PROTECTED] wrote:
ls -l /dev/hd[gk]* ... you make need a later MAKEDEV (or edit yours)
to create all the necessary files
Not sure what this will help, except confirm again that these volumes aren't
[Harry Zink]
Not sure what this will help, except confirm again that these volumes aren't
accessible, which was my question to start with.
question is "why?", answer is "no appropriate /dev entries"
[root@gate src]# ls -l /dev/hdj1
ls: /dev/hdj1: No such file or directory
[root@gate src]#
on 5/17/00 8:30 AM, m. allan noah at [EMAIL PROTECTED] wrote:
you obviously dont understand how device files work.
You are correct, that is one particular part of the opsys that is still
pretty much mystery to me.
Even reading through /usr/src/linux/Documentation/devices.txt makes it
pretty
on 5/17/00 9:24 AM, Tommy at [EMAIL PROTECTED] wrote:
I mentioned in the email I sent last week that your problem was the dev,
and requested a ls -l of /dev/ to show you..
...and I appreciate the help you provided with that, but when I received
your mail, I had already taken the system down
-Original Message-
From: Harry Zink [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, May 17, 2000 9:10 AM
To: m. allan noah; James Manning
Cc: [EMAIL PROTECTED]
Subject: Re: md0 won't let go... (dmesg dump...)
on 5/17/00 8:30 AM, m. allan noah at [EMAIL PROTECTED] wrote:
[snip]
I'm working on a project that involves supporting
multipath(*) access under the 2.2.x kernel. I known that
neither the current LVM and MD subsystems support this,
and as a first attempt at it I'm writing a MD personality
for multipath.
Anyhow, here's my question: has anybody
On Wed, 17 May 2000, Harry Zink wrote:
on 5/17/00 9:24 AM, Tommy at [EMAIL PROTECTED] wrote:
I mentioned in the email I sent last week that your problem was the dev,
and requested a ls -l of /dev/ to show you..
...and I appreciate the help you provided with that, but when I received
[Harry Zink]
While I appreciate the patch/diff provided by James Manning, I am extremely
weary of applying anything to a system that I don't fully understand -
particularly if it is suffixed by "Who knows..." (shiver).
I hadn't had a chance to test it... this one (attached) works (I had
Hello Harry, I noticed that on the higher IDE controller(s) are
alternating 'PIO' drives . A suggestion , try placing these
drives on just one controller OR not using them entirely .
then try rebuilding using just the DMA capable ones .
Just a
I get:
File Block Num Seq ReadRand Read Seq Write Rand
Write
DirSize Size Thr Rate (CPU%) Rate (CPU%) Rate (CPU%) Rate
(CPU%)
--- -- --- --- --- --- ---
---
. 20040961 21.57 12.0% 0.634 1.13% 19.67 24.0%
-Original Message-
From: Edward Schernau [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, May 17, 2000 11:19 AM
To: [EMAIL PROTECTED]
Subject: help interpret tiobench.pl results?
I get:
File Block Num Seq ReadRand Read Seq Write Rand
Write
DirSize Size
Hello
Do anybody have some experiencies with ICP VORTEX or MYLEX Hardware-RAID
controller?
Which controller vendor should I prefer?
--
Mfg. Thomas King
-
eMail:[EMAIL PROTECTED]
Homepage: http://www.t-king.de
MobiTel.: 0171-1449137
Tel.:
on 5/17/00 11:14 AM, Mr. James W. Laferriere at [EMAIL PROTECTED]
wrote:
Hello Harry, I noticed that on the higher IDE controller(s) are
alternating 'PIO' drives .
Actually, the way it turns out, the PIO slots are the ones without drives.
It switches to DMA when it detects if a drive is
Thanks to everyone's great help and good suggestions, I got my system
running properly with all drives recognized, and RAIDed together.
Yay!
Key point: check for, and use the MAKEDEV.ide file in the scripts directory
in the kernel tree.
Once that was done, everything else just fell in place
On Wed, 17 May 2000, Thomas King wrote:
Do anybody have some experiencies with ICP VORTEX or MYLEX Hardware-RAID
controller?
Which controller vendor should I prefer?
I had a great time with an Acceleraid 250 a while back. Performance was
quite sad for an LVD Ultra2 SCA Raid1 with two drives,
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