Re: raid 1 mirror

2000-03-28 Thread Jakob Østergaard
On Tue, 28 Mar 2000, Andreas Martmann wrote: > Hello > > I have to install a RAID 1 System in order to mirror all partitions (exept the > /boot partition, I think). The Problem is that I haven´t made this before, and I > haven´t found a documentation that gives me the answers I need. > > There

Re: raid 1 mirror

2000-03-28 Thread Chris Bondy
I've ran old MD-utils since it come out and still running it, very heavly. I've only had major problems, when there was hardware problems, of course there are bugs in all software. I'd say to move up tho. Use the new raid-utils. I don't do the boot-Raid, if you're not, you should be fine, the ne

raid 1 mirror

2000-03-28 Thread Andreas Martmann
Hello I have to install a RAID 1 System in order to mirror all partitions (exept the /boot partition, I think). The Problem is that I haven´t made this before, and I haven´t found a documentation that gives me the answers I need. There are three HowTos available the old (normal) RAID HowTo for R

Re: IO-APIC interrupts (was System Hangs -- Which Is...)

2000-03-28 Thread James Manning
[[EMAIL PROTECTED]] > I'm in the same boat. How do you enable IO-APIC support in the > kernel? CONFIG_SMP implies it, and recent 2.3.x (may have been backported) will allow a UP kernel to use IO-APIC (Ingo's work) although I haven't seen a machine (personally) where that's helpful :) > What is

Re: Changing controllers strategy?

2000-03-28 Thread Theo Van Dinter
On Tue, Mar 28, 2000 at 12:47:08PM -0500, Seth Vidal wrote: > > I'm a bit cautious here as I've had a bad experience when experimenting > > with disk changing and ended up with a corrupted array. Is it just me, or should the RAID superblock include information to make disk ordering unimportant?

Re: Changing controllers strategy?

2000-03-28 Thread Piete Brooks
> I've got a four disk RAID5 setup on one controller. I want to add > another controller, but am unsure of what strategy I should adopt to > maintain the RAID integrity. You didn't mention which raid kernel code you are using. If it is recent, each partition will have `Persistent Super Block's

Re: Changing controllers strategy?

2000-03-28 Thread Seth Vidal
> I've got a four disk RAID5 setup on one controller. I want to add > another controller, but am unsure of what strategy I should adopt to > maintain the RAID integrity. > > As the order that the disks are found and identified as sda, sdb etc. > determines the RAID structure and depends on the

Changing controllers strategy?

2000-03-28 Thread Jim Ford
Hi I've got a four disk RAID5 setup on one controller. I want to add another controller, but am unsure of what strategy I should adopt to maintain the RAID integrity. As the order that the disks are found and identified as sda, sdb etc. determines the RAID structure and depends on the disk ID

Re: Raid-Related System Locks

2000-03-28 Thread Luca Berra
On Tue, Mar 28, 2000 at 03:48:44PM +0200, Bernd Burgstaller wrote: > (scsi0:0:0:0) Synchronous at 80.0 Mbyte/sec, offset 31. > (scsi0:0:2:0) Synchronous at 20.0 Mbyte/sec, offset 15. > (scsi0:0:3:0) Synchronous at 10.0 Mbyte/sec, offset 32. > (scsi0:0:13:0) Synchronous at 80.0 Mbyte/sec, offset 31

Re: Raid-Related System Locks

2000-03-28 Thread Patrick Wagstrom
> Dear all! > > I am writing this mail due to hangups related to my raid devices. I am > seeking for suggestions enabling me to locate the problem. Any suggestions > are welcome! Below you find a description of my system as well as of the > problems. If you need further information, please let m

Re: Raid-Related System Locks

2000-03-28 Thread m . allan noah
this is networking bug in 2.2.11 upgrade kernel to 2.2.14, get new raid patch and raid tools from www.redhat.com/~mingo/ allan Bernd Burgstaller <[EMAIL PROTECTED]> said: > Dear all! > > I am writing this mail due to hangups related to my raid devices. I am > seeking for suggestions enabling

Re: single vs raid soft

2000-03-28 Thread Jakob Østergaard
On Tue, 28 Mar 2000, octave klaba wrote: > Hi, > > > >From the CPU load on the raid-1 soft IDE test, I think seems likely that you > > didn't have DMA enabled. Could that be possible ? > > how can I verify it ? hdparm -v /dev/hd[ac] See if using_dma is 0 or 1. If it's 0, either try a kerne

Re: single vs raid soft

2000-03-28 Thread Jakob Østergaard
On Tue, 28 Mar 2000, Mike Bilow wrote: > On Tue, 28 Mar 2000, Jakob Østergaard wrote: > ... > > >From the CPU load on the raid-1 soft IDE test, I think seems likely that you > > didn't have DMA enabled. Could that be possible ? > > > > It doesn't make sense to have 97% CPU load when reading wi

Re: Raid-Related System Locks

2000-03-28 Thread Johannes Niess
Bernd Burgstaller <[EMAIL PROTECTED]> writes: [...] > The system contains 3 SCSI disks, detected by the kernel as follows: > > (scsi0) found at PCI 6/0 > (scsi0) Wide Channel, SCSI ID=7, 32/255 SCBs > (scsi0) Downloading sequencer code... 374 instructions downloaded > scsi0 : Adaptec AHA274x/2

IO-APIC interrupts (was System Hangs -- Which Is...)

2000-03-28 Thread sjbuller
Mike Bilow <[EMAIL PROTECTED]> wrote: >...snip.. >However, if you have IO-APIC support enabled in the CMOS setup >and in the Linux kernel, there should be no need for assignment >of shared interrupts. >...snip... I'm in the same boat. How do you enable IO-APIC support in the kernel? >It is

Re: Raid-Related System Locks

2000-03-28 Thread Mike Black
please note:"Ultra" SCSI cable lengths are severely limited! The maximum cable length is ten feet when four devices (including the host adapter) or less are on the bus. If five devices are used (four devices and your host adapter), then the maximum bus length is 1.5 meters (five feet!). As I coun

re: aic7xxx, SMP, "providence" board

2000-03-28 Thread Edward Schernau
How do you get interrupts 17 and 18 ??? -- Edward Schernau http://www.schernau.com Network Architect mailto:[EMAIL PROTECTED] Rational Computing Providence, RI, USA

Re: Problems again

2000-03-28 Thread Mike Bilow
Danilo Godec wrote: > > On Tue, 28 Mar 2000, Mike Bilow wrote: > > > I think you have an electrical issue. > > I feared that, but what should I do? It's all LVD and all pre-installed by > Intel... except disks, of course. Call for warranty service, I would think. > Besides, it only happens eve

Re: Problems again

2000-03-28 Thread Danilo Godec
On Tue, 28 Mar 2000, Mike Bilow wrote: > That's a hardware problem. A SCSI parity error is reported by the > hardware and simply passed up the chain. Unless there is something > seriously wrong in the aic7xxx sequencer code, which I doubt, this looks > like a typical cabling and termination iss

Re: single vs raid soft

2000-03-28 Thread octave klaba
Hi, > >From the CPU load on the raid-1 soft IDE test, I think seems likely that you > didn't have DMA enabled. Could that be possible ? how can I verify it ? Amicalement, Octave > no swap allowed <

Re: single vs raid soft

2000-03-28 Thread Mike Bilow
On Tue, 28 Mar 2000, octave klaba wrote: > > Machine MB K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU /sec %CPU > > > > 1° 2000 9212 96.4 20354 13.9 4411 3.6 3822 35.4 22180 8.0 85.6 0.7 > > > > 2° 2000 1727 22.4 2095 5.5 1381 34.9 3070 98.6 4320 97.8 74.8 7.3 > > > > 3° 2

Re: single vs raid soft

2000-03-28 Thread octave klaba
> Machine MB K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU /sec %CPU > > > 1° 2000 9212 96.4 20354 13.9 4411 3.6 3822 35.4 22180 8.0 85.6 0.7 > > > 2° 2000 1727 22.4 2095 5.5 1381 34.9 3070 98.6 4320 97.8 74.8 7.3 > > > 3° 2000 7236 91.6 18321 15.5 8003 13.7 8347 96.7 18

Raid-Related System Locks

2000-03-28 Thread Bernd Burgstaller
Dear all! I am writing this mail due to hangups related to my raid devices. I am seeking for suggestions enabling me to locate the problem. Any suggestions are welcome! Below you find a description of my system as well as of the problems. If you need further information, please let me know. Bes

Re: single vs raid soft

2000-03-28 Thread Andre Pang
On Tue, Mar 28, 2000 at 08:22:22AM -0500, Mike Bilow wrote: > > >From the CPU load on the raid-1 soft IDE test, I think seems likely that you > > didn't have DMA enabled. Could that be possible ? > > > > It doesn't make sense to have 97% CPU load when reading with 4 MB/s unless > > it's done wi

Re: Problems again

2000-03-28 Thread Mike Bilow
On Tue, 28 Mar 2000, Danilo Godec wrote: > Mar 28 12:00:45 mail kernel: (scsi0:0:2:0) Parity error during Message-In phase > Mar 28 12:00:45 mail kernel: (scsi0:0:2:0) Parity error during Data-In phase. That's a hardware problem. A SCSI parity error is reported by the hardware and simply passed

Re: single vs raid soft

2000-03-28 Thread Mike Bilow
On Tue, 28 Mar 2000, Jakob Østergaard wrote: > On Tue, 28 Mar 2000, octave klaba wrote: > > > Hi, > > > > a test between single ide <-> raid-1 soft ide <-> raid-1 soft scsi-2 > > > > 1° PIII600/128RAM/1XIDE20.5 > > 2° PIII600/128RAM/2XIDE20.5 raid-1 soft > > 3° PIII500/256/29

Re: superblock or the partition table is corrupt?

2000-03-28 Thread Mike Black
You can change the partition type at any time without stopping the array -- you won't lose any data either. It's only used for partition management (i.e. fdisk, auto-RAID, etc). Michael D. Black Principal Engineer [EMAIL PROTECTED] 321-676-2923,x203 http

Problems again

2000-03-28 Thread Danilo Godec
Today, I had another SCSI failure. I was able to get a bit more of dmesg stuff, but can't figure out, what is going wrong there. In /var/log/messages, the unusuall stuff starts with this repeated a couple of times: Mar 28 12:00:45 mail kernel: (scsi0:0:2:0) Parity error during Message-In phase M

Re: single vs raid soft

2000-03-28 Thread Jakob Østergaard
On Tue, 28 Mar 2000, octave klaba wrote: > Hi, > > a test between single ide <-> raid-1 soft ide <-> raid-1 soft scsi-2 > > 1° PIII600/128RAM/1XIDE20.5 > 2° PIII600/128RAM/2XIDE20.5 raid-1 soft > 3° PIII500/256/2940U2W/SCSI-2/RAID-1/IBM18Go7200 > > ---Sequential

single vs raid soft

2000-03-28 Thread octave klaba
Hi, a test between single ide <-> raid-1 soft ide <-> raid-1 soft scsi-2 1° PIII600/128RAM/1XIDE20.5 2° PIII600/128RAM/2XIDE20.5 raid-1 soft 3° PIII500/256/2940U2W/SCSI-2/RAID-1/IBM18Go7200 ---Sequential Output ---Sequential Input-- --Random-- -Pe

Re: System Hangs -- Which Is Most Stable Kernel?

2000-03-28 Thread Mike Bilow
The aic7xxx driver is definitely unstable in my experience on SMP when shared interrupts are used. It will usually hang on boot in this case. This is an especially annoying problem because many SMP motherboards will insist on assigning interrupts automatically; Intel and Supermicro are particul

Re: System Hangs -- Which Is Most Stable Kernel?

2000-03-28 Thread Peter Pregler
Hi, I had (or have) similar hangs (all frozen, no syslog-entry, kernel still running since ping works, but all user-level stuff hangs). The hardware in my case is a onboard AIC-7890, an additional AHA-394X, a 3com 3c905B. All on a Dual-PIII-450 on a Asus motherboard running raidutils 0.9 on a SMP

Re: Swapping onto RAID: Good idea?

2000-03-28 Thread Mike Bilow
I have not really done this yet, but if [ ! -e /proc/mdstat ] || \ [ `grep -ci resync /proc/mdstat` -eq 0 ] ; then swapon -a fi seems like a reasonable approach. Martin Bene posted a slightly different variant which waits until remirroring is done and then st