Re: [PATCH md 2 of 4] Fix raid6 problem

2005-02-14 Thread Andrew Walrond
On Monday 14 February 2005 04:56, Tim Moore wrote: > > Also considered the MSI board but no numa memory interconnect and no 64bit > slots. > I have some MSI boards here. The K8D Master3 has both NUMA and 64bit slots. I've been running 2.6.10 flawlessy with more than a months uptime so far. Andre

Re: [PATCH md 2 of 4] Fix raid6 problem

2005-02-14 Thread Gordon Henderson
On Sun, 13 Feb 2005, Tim Moore wrote: > Gordon Henderson wrote: > > What I wanted was an 8-way RAID-1 for the boot partition (all of /, in > > reality) and I've done this many times in the past on other 2-5 way > > systems without issue. So I do the stuff I've done in the past, and theres > > noth

Re: [PATCH md 2 of 4] Fix raid6 problem

2005-02-14 Thread Gordon Henderson
On Sun, 13 Feb 2005, Tim Moore wrote: > Gordon Henderson wrote: > > > > Anyone using Tyan Thunder K8W motherboards??? > > > > I now know, there is a K8S (server?) version of that mobo, but at the time > > it was all orderd, I wasn't aware of it - my thoughts are there there is > > some sort of PCI

Re: [PATCH md 2 of 4] Fix raid6 problem

2005-02-13 Thread Tim Moore
Gordon Henderson wrote: On Sun, 13 Feb 2005, Mark Hahn wrote: I was about to post that I've solved my problems with that Tyan dual opteron motherboard, but it's still crap. I upgraded the BIOS to the 2.02 beta and it seemed to work a lot better. Still couldn't boot off it with all 8 drives in, bu

Re: [PATCH md 2 of 4] Fix raid6 problem

2005-02-13 Thread Tim Moore
Gordon Henderson wrote: What I wanted was an 8-way RAID-1 for the boot partition (all of /, in reality) and I've done this many times in the past on other 2-5 way systems without issue. So I do the stuff I've done in the past, and theres nothing really new to me in that respect. (I'm using LILO) S

Re: [PATCH md 2 of 4] Fix raid6 problem

2005-02-13 Thread Tim Moore
Gordon Henderson wrote: Anyone using Tyan Thunder K8W motherboards??? I now know, there is a K8S (server?) version of that mobo, but at the time it was all orderd, I wasn't aware of it - my thoughts are there there is some sort of PCI/PCI-X problem with either the motherboard or the chipset, and i

Re: [PATCH md 2 of 4] Fix raid6 problem

2005-02-13 Thread Richard Scobie
Mike Hardy wrote: Its running x86_64 (Fedora Core 3) and the problem is rooted in the chipset I believe. I don't think its Opterons per se, I think its just the Athlon take two - which is to say that its a wonderful chip, but some of the chipsets its saddled with are horrible, and careful selec

Re: [PATCH md 2 of 4] Fix raid6 problem

2005-02-13 Thread Mike Hardy
Mark Hahn wrote: Interesting - the private mail was from me, and I've got two dual Opterons in service. The one with significantly more PCI activity has significantly more problems then the one with less PCI activity. that's pretty odd, since the most intense IO devices I know of are cluster i

Re: [PATCH md 2 of 4] Fix raid6 problem

2005-02-13 Thread Gordon Henderson
On Sun, 13 Feb 2005, Mark Hahn wrote: > > Interesting - the private mail was from me, and I've got two dual > > Opterons in service. The one with significantly more PCI activity has > > significantly more problems then the one with less PCI activity. > > that's pretty odd, since the most intense I

Re: [PATCH md 2 of 4] Fix raid6 problem

2005-02-13 Thread Mark Hahn
> Interesting - the private mail was from me, and I've got two dual > Opterons in service. The one with significantly more PCI activity has > significantly more problems then the one with less PCI activity. that's pretty odd, since the most intense IO devices I know of are cluster interconnect

Re: [PATCH md 2 of 4] Fix raid6 problem

2005-02-05 Thread Tim Moore
Gordon Henderson wrote: > ... It seemed more stable with just one PCI card in, so I have a 4-port card on order as a last ditch attempt to make it work - I did try re-flashing the BIOS on one board, (I have 2) as it seemed to be about a year old and there are several updates on the Tyan web-site, h

Re: [PATCH md 2 of 4] Fix raid6 problem

2005-02-04 Thread Mike Hardy
Gordon Henderson wrote: I have had a private email from someone who has experienced similar lock-ups with twin Opteron systems and PCI cards, so from that point of view it doesn't bode well. I have some quad Opterons running too, and they seem fine, although they are pure compute servers with just

Re: [PATCH md 2 of 4] Fix raid6 problem

2005-02-04 Thread Gordon Henderson
On Fri, 4 Feb 2005, Andrew Walrond wrote: > Hi Gordon, > > > Anyone using Tyan Thunder K8W motherboards??? > > I'm using K8W's here with a combo od raid0/1 on on-board SATA, and its been > rock solid for months (2.6.10). Looks like your problems are all with the PCI > cards, but I can't help there

Re: [PATCH md 2 of 4] Fix raid6 problem

2005-02-04 Thread Andrew Walrond
Hi Gordon, On Thursday 03 February 2005 19:36, Gordon Henderson wrote: > > However, I then got production hardware - Tyan Thunder K8W twin Opteron > board, 4-port SATA on-oboard, 2x2-port SATA in PCI slots (all SII chipset) > and it all went pear-shaped from there. The system locks solid whenever

Re: [PATCH md 2 of 4] Fix raid6 problem

2005-02-03 Thread Gordon Henderson
On Thu, 3 Feb 2005, H. Peter Anvin wrote: > Guy wrote: > > Would you say that the 2.6 Kernel is suitable for storing mission-critical > > data, then? > > Sure. I'd trust 2.6 over 2.4 at this point. This is interesting to hear. > > I ask because I have read about a lot of problems with data corr

RE: [PATCH md 2 of 4] Fix raid6 problem

2005-02-03 Thread Guy
PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of H. Peter Anvin Sent: Thursday, February 03, 2005 11:40 AM To: Ruth Ivimey-Cook Cc: linux-raid@vger.kernel.org Subject: Re: [PATCH md 2 of 4] Fix raid6 problem Ruth Ivimey-Cook wrote: > > Would you say that raid-6 is suitable for storing mission-cr

Re: [PATCH md 2 of 4] Fix raid6 problem

2005-02-03 Thread H. Peter Anvin
Guy wrote: Would you say that the 2.6 Kernel is suitable for storing mission-critical data, then? Sure. I'd trust 2.6 over 2.4 at this point. I ask because I have read about a lot of problems with data corruption and oops on this list and the SCSI list. But in most or all cases the 2.4 Kernel doe

Re: [PATCH md 2 of 4] Fix raid6 problem

2005-02-03 Thread Andy Smith
On Thu, Feb 03, 2005 at 02:12:38AM +, H. Peter Anvin wrote: > Anyway... I'm thinking of sending in a patch to take out the > "experimental" status of RAID-6. I have been running a 1 TB > production server in 1-disk degraded mode for about a month now > without incident. Out of interest, how m

Re: [PATCH md 2 of 4] Fix raid6 problem

2005-02-03 Thread H. Peter Anvin
Lars Marowsky-Bree wrote: On 2005-02-03T08:39:41, "H. Peter Anvin" <[EMAIL PROTECTED]> wrote: Yes, right now there is no RAID5->RAID6 conversion tool that I know of. Hm. One of the checksums is identical, as is the disk layout of the data, no? No, the layout is different. -hpa - To unsubsc

Re: [PATCH md 2 of 4] Fix raid6 problem

2005-02-03 Thread Lars Marowsky-Bree
On 2005-02-03T08:39:41, "H. Peter Anvin" <[EMAIL PROTECTED]> wrote: > Yes, right now there is no RAID5->RAID6 conversion tool that I know of. Hm. One of the checksums is identical, as is the disk layout of the data, no? So wouldn't mdadm with the right parameters forcing the right super block to

Re: [PATCH md 2 of 4] Fix raid6 problem

2005-02-03 Thread H. Peter Anvin
Ruth Ivimey-Cook wrote: Would you say that raid-6 is suitable for storing mission-critical data, then? What I'd say is that I don't have any evidence it's not. Unfortunately, that's not quite the same thing. I have a .5TB raid5 array on 5 IDE disks, and given what has been said recently about d

Re: [PATCH md 2 of 4] Fix raid6 problem

2005-02-02 Thread H. Peter Anvin
Followup to: <[EMAIL PROTECTED]> By author:"A. James Lewis" <[EMAIL PROTECTED]> In newsgroup: linux.dev.raid > > > Sorry for the delay in replying, I've been using RAID6 in a real life > situation with 2.6.9 + patch, for 2 months now, with 1.15Tb of storage, > and I have had more than 1 drive

Re: [PATCH md 2 of 4] Fix raid6 problem

2005-01-23 Thread Kevin P. Fleming
A. James Lewis wrote: At the moment, I am experimenting with RAID on top of USB Mass Storage devices... it's interesting because the USB system takes a significant time to identify and make each drive available, and I have to determine if all the drives have become available before starting any arr

Re: [PATCH md 2 of 4] Fix raid6 problem

2005-01-23 Thread A. James Lewis
Sorry for the delay in replying, I've been using RAID6 in a real life situation with 2.6.9 + patch, for 2 months now, with 1.15Tb of storage, and I have had more than 1 drive failure... as well as some rather embarasing hardware corruption which I traced to a faulty IDE controller. Dispite some r