Well, two of my drives did have an older bios, but the upgrade changed nothing. I noticed that even unmounted, as long as I didn't raidstop the device, the system still crashes. I tried setting down my bios as much as possible, and I am looking to do the same with the kernel, 2.4.21. I'll try the magic sysrq key, but I can't find my nulmodem cable to save my life, so I'll have to barrow one from work. My server marches on, but without /dev/md2... I'll try just letting it sit, /dev/md2 intact, over night, but for now, I need it up, even if it is only for fits and spurts. Thanks everyone, keep the ideas rolling in. <sigh> >Hey folks, > >I just upgraded my system from a ~200GB mirror to a ~1TB RAID5, but all has >not transitioned well. > >I really don't know how to debug this issue, though I have tried. I gave >up this morning before work, but I was going to try the magickey next >(something I don't really know how to use, but anything for a clue) >followed by upgrading to 2.4.21. > >The lock up is typical to a system with a failing drive; the system is >responsive to input, but nothing happens. Keyboard works fine, but >programs become idle (not really crashing.) I tried keeping "top" up, >hoping I would see something obvious, like raid5syncd doing something >strange, but if it does, top doesn't update after the problem. > >The lockups happen even if the system is doing nothing (other than >raid5syncd, which is awfully busy since my RAID won't stay up) > >If I unmount the RAID5 and RAIDSTOP it, my system will work fine, but I'm >out 1TB of disk. Right now, I have it running the bare essentials (all >services on, but my /home directory has only public_html and mail stuff for >each user.) > >Anything I can do to get more information out of this problem? I don't >really know where to look. > > >System Infro >======================================================================= > >My kernel is 2.4.20, my raid tools is raidtools-0.90, no patches on >anything, home built distro (linux from scratch.) Had been running on a >mirror for nearly a year. > >Each drive on my system is connected to promise UltraATA 100 controllers. >I have 6 drives and 3 controllers. Each drive is a 200GB WD drive, set to >"Single/Master" on their channel. > >No device has a slave. > >Drives are hda hdc hde hdg hdi hdk > >------- Each drive is configured exactly like the device below ------- > >Disk /dev/hda: 255 heads, 63 sectors, 24321 cylinders >Units = cylinders of 16065 * 512 bytes > > Device Boot Start End Blocks Id System >/dev/hda1 1 319 2562336 fd Linux raid autodetect >/dev/hda2 320 352 265072+ 82 Linux swap >/dev/hda3 353 24321 192530992+ fd Linux raid autodetect > >------------------------- Here is my raidtab ------------------------- > >raiddev /dev/md0 > raid-level 1 > chunk-size 32 > nr-raid-disks 2 > nr-spare-disks 0 > persistent-superblock 1 > device /dev/hda1 > raid-disk 0 > device /dev/hdc1 > raid-disk 1 > >raiddev /dev/md1 > raid-level 1 > chunk-size 32 > nr-raid-disks 2 > nr-spare-disks 0 > persistent-superblock 1 > device /dev/hde1 > raid-disk 0 > device /dev/hdg1 > raid-disk 1 > >raiddev /dev/md2 > raid-level 5 > chunk-size 32 > nr-raid-disks 6 > nr-spare-disks 0 > persistent-superblock 1 > device /dev/hda3 > raid-disk 0 > device /dev/hdc3 > raid-disk 1 > device /dev/hde3 > raid-disk 2 > device /dev/hdg3 > raid-disk 3 > device /dev/hdi3 > raid-disk 4 > device /dev/hdk3 > raid-disk 5 > >raiddev /dev/md3 > raid-level 1 > chunk-size 32 > nr-raid-disks 2 > nr-spare-disks 0 > persistent-superblock 1 > device /dev/hdi1 > raid-disk 0 > device /dev/hdk1 > raid-disk 1 > >-------------------------- Here is my fstab -------------------------- > ># Begin /etc/fstab > ># filesystem mount-point fs-type options dump fsck-order > >/dev/md0 / reiserfs defaults 1 1 >/dev/md1 /mnt/backup reiserfs noauto,defaults 1 3 >/dev/md2 /home reiserfs defaults 1 2 >/dev/hda2 swap swap pri=42 0 0 >/dev/hdc2 swap swap pri=42 0 0 >/dev/hde2 swap swap pri=42 0 0 >/dev/hdg2 swap swap pri=42 0 0 >/dev/hdi2 swap swap pri=42 0 0 >/dev/hdk2 swap swap pri=42 0 0 >proc /proc proc defaults 0 0 > ># End /etc/fstab > >======================================================================= > >Let me know if I missed anything (probably lots.) > >Thanks for your time. > > >/\/\/\/\/\/\ Nothing is foolproof to a talented fool. /\/\/\/\/\/\ > >coreyfro@coreyfro.com >http://www.coreyfro.com/ >http://stats.distributed.net/rc5-64/psummary.php3?id=196879 >ICQ : 3168059 > >-----BEGIN GEEK CODE BLOCK----- >GCS d--(+) s: a-- C++++$ UBL++>++++ P+ L+ E W+++$ N+ o? K? w++++$>+++++$ >O---- !M--- V- PS+++ PE++(--) Y+ PGP- t--- 5(+) !X- R(+) !tv b-(+) >Dl++(++++) D++ G+ e>+++ h++(---) r++>+$ y++*>$ H++++ n---(----) p? !au w+ >v- 3+>++ j- G'''' B--- u+++*** f* Quake++++>+++++$ >------END GEEK CODE BLOCK------ > >Home of Geek Code - http://www.geekcode.com/ >The Geek Code Decoder Page - http://www.ebb.org/ungeek// > >- >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 > /\/\/\/\/\/\ Nothing is foolproof to a talented fool. /\/\/\/\/\/\ coreyfro@coreyfro.com http://www.coreyfro.com/ http://stats.distributed.net/rc5-64/psearch.php3?st=coreyfro ICQ : 3168059 -----BEGIN GEEK CODE BLOCK----- GCS !d--(+) s: a- C++++$ UL++>++++ P+ L++>++++ E- W+++$ N++ o? 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