Fwd: Re: md questions [forwarded from already sent mail]
From: Gene Heskett <hidden>
Date: 2004-01-24 16:47:56
Date: Saturday 24 January 2004 08:20 From: Maarten van den Berg <redacted> To: linux-raid@vger.kernel.org
On Saturday 24 January 2004 11:31, you wrote:quoted
On Saturday 24 January 2004 06:58, Maarten van den Berg wrote:quoted
On Saturday 24 January 2004 01:31, Gene Heskett wrote:quoted
On Thursday 22 January 2004 19:28, Gene Heskett wrote:All of the above ;-) No seriously, it sounds like a problem with the hardware somewhere along the line. Can you test the array on the OLD motherboard, by just plugging everything in ? Also, if you're using persistent superblocks and type=0xFD, messing with the order in which the drives are attached / recognized should not matter. It is confusing, but the array should nonetheless assemble itself perfectly. At least in my experience.How do we make sure the persistent superblocks are in use? And the 0xFD is I assume what fdisk would show us as the disk type?
It's all in the manual. Yes, the partition type in fdisk.
quoted
Jim has been beating his head on this thing for a week. Trying the old mobo might be a possibility, but its boot drive would need formatted and 7.2 re-installed and recompiled so md is builtin to dup what we had before, or at least make a reasonable copy of it. What I'm trying to say is that we probably cannot recreate it exactly. It was the boot drive, not the raid, that got trashed on the other, older mobo. I'm now confused as to whether the 4 160Gb's in the raid array are new, or the same ones from 2 years ago when we built the first one which had a 400mhz K6-II on it IIRC, with 256 megs of dimms. This one has a bit more horsepower than that.
No, no, NO. I don't mean recreate the old setup with the old software. I mean use the exact same bootdrive as you're using now and the exact same setup ! It's linux, you know, not windows. You can, in most all cases, just change hardware without any changes. The exception being if you have a kernel that is optimized for a certain cpu. But even then, a new kernel is compiled easily, seen as you have already done that anyway. So the question is: what happens if you ONLY swap the motherboard but leave all else in place (controllers, disks and linux bootdrive)
I think Jim can do that Monday, if he hasn't already tried it. I've not been personally present for much of this, its 30 miles up the interstate from the Peacefull Valley Rest Home, aka the Heskett Ranchette. Jim, please send a subscribe linux-raid message to Majordomo@vger.kernel.org so this can become a bit less like heresay and more first person.
P.S. I'd appreciate it if you reply to the list instead of to me directly.
Maarten
For some reason a reply all isn't doing that and I have to change it manually which I've done here. Hummm, no mention of the ml in the headers that I see here. I see the quoting seems to be broken too so I'll fix that too, (kmail 1.6.0, kde-3.23-rc2, not quite ready for prime time... :) - To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Odd, this is here, but the header says its from you personally. Maybe this will reset the headers? -- Cheers, Gene "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author) 99.22% setiathome rank, not too shabby for a WV hillbilly Yahoo.com attornies please note, additions to this message by Gene Heskett are: Copyright 2004 by Maurice Eugene Heskett, all rights reserved.