[ale] IDE problems with Software RAID-1

[Jeff Layton]

Good morning,

   I've got a box at home that I'm experimenting with. I've got 3
IDE HDs and an IDE CDRW. The first IDE drive has everything
but /home on it. It's the master on ide 0 (/dev/hda). This drive is
a 20 Gig WD drive. The remaining IDE HDS are setup as
Software RAID-1. The first drive is the slave on ide 0 (/dev/hdb)
and the second drive is the master on ide 1 (/dev/hdc). These
drives are 40 Gig Seagate drives (I forgot the model number
right now). The CDRW is the slave on ide 1 (/dev/hdd).
   Anyway, I'm getting errors on /dev/hdb (the first drive in the
RAID-1 set). I will sometimes get the usual errors:

kernel: hdb: dma_intr: status=0x51 { DriveReady SeekComplete Error }
kernel: hdb: dma_intr: error=0x84 { DriveStatusError BadCRC }

for a while. I'm also getting errors on /dev/hda. I can't remember
the exact errors messages, but it keeps saying,

hda: lost interrupt

I also will get a few messages about DMA resets (or something
like that) and 'ide 0 reset'.
   I'm using a 2.4.19 kernel with -aa patches and -jam0 patches.
I'm sorry I don't have concrete error messages (the machine was
having real trouble last night and I couldn't get any of the logs out
before I fell asleep :).
   One last thing. All of the HDs are in removable racks. I've checked
the cables to the racks. Their less than 18" and the cables tested fine
in another box (not extensively tested though).
   Any help would be greatly appreciated!

Thanks!

Jeff

--

Jeff Layton
Senior Engineer
Lockheed-Martin Aeronautical Company - Marietta
Aerodynamics & CFD
email: jeffrey.b.layton at lmco.com

"Is it possible to overclock a cattle prod?" - Irv Mullins




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