RAID weirdness

[Gregory J. Neumann]

>I wrote a wonderful, in depth response to this message and when I sent it, 
>yahoo informed me that my login expired and that I'd have to relogin.  Of 
>course, the message that I typed in was gone so you'll have to do with 
>this version :-)  We don't mind answering questions at all.  That's why 
>we're here.
>
>First of all, if you could send along a copy of your '/etc/raidtab' file, 
>it would be most helpful.  This file is used by 'mkraid' and 'raidstart' 
>so it's contents are kinda important.
>
>The sequence of events for building and mounting a RAID filesystem are:

>   1) modify the '/etc/raidtab' file to define the RAID devices that 
>        you're building.
>
>   2) run 'mkraid' with as many options as makes you happy.
>
>   3) build a filesystem on the '/dev/md' device using something like 
>        'mke2fs' or 'mkreiserfs'
>
>   4) mount the filesystem with the 'mount' command pointed to '/dev/md??' 
>       or add the mount point to '/etc/fstab' using the '/dev/md??' 
>       device.
>
>   5) kick back and open a cold one, knowing that you've saved the world 
>       from fried drives :-)
>
>   Note that I haven't actually TRIED this :-).  This is information that 
>   I've gleaned from the man pages while I was researching doing this for 
>   a customer. We still haven't gotten around to trying it.  Note that you 
>   probably cannot do this simply with the root file system.
>
>   By the way, do you folks have any good, straight grained Osage Orange 
>   there?  I want to build a longbow and need to find some 4/4 by whatever 
>   width by at least 7-1/2 feet.  I built an electric guitar out of Padauk 
>   and Bocote that I bought at Certainly Wood some time ago.
>
>   Cheers!

Yeah, should've thought to include >all< the important info! :-/

raiddev   /dev/md0
     raid-level              1
     nr-raid-disks           2
     persistent-superblock   1
     chunk-size              32

     device                  /dev/sda3
     raid-disk               0
     device                  /dev/sdb3
     raid-disk               1

"By the book", as near as I can tell.  I actually cut & pasted from the manpage, then changed the device names, etc.
Althought the most recent docs say you can actually boot from a RAID now, >I'm< not going to try it! ;-)  This is pure, empty data space for the customer database.  ...that is if I can get it to work!  Somehow, I think the "abortive first attempt" with mismatched tools and drivers is where the  problem arose.  I've tried changing to "raid-level 0" and "persistent-superblock 0" and changing from "/dev/md0" to "/dev/md1"  and all combinations thereof.  

We don't have any Osage Orange, in fact very little lumber at all anymore.  I'd recommend trying Niagara Lumber on Elm Street in E. Aurora  655-2142, if you haven't already.  

I'm planning on making the next meeting, but I also planned on the last one, too.  Can't figure out why small businesses aren't eating up the Linux/Samba combo!  It's served <-pun ;-) us very well for the last 2.75 years!  My headaches come from Win98!  Server just runs w/o complaint.

Well, hope this give you a clue as to what I messed up.  

Best regards,
Greg
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