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Legacy Forums => General Discussion (Legacy) => Topic started by: Dan Williams on March 06, 2003, 07:55:18 PM

Title: Seagate STT220000A Drive
Post by: Dan Williams on March 06, 2003, 07:55:18 PM

Every day this is in the logs,

Mar  1 02:00:03 merlin kernel: st0: Error with sense data: [valid=0] Info fld=0x0,
Current st09:00: sense key Illegal Request

I have seen where others have the same questions about this, but no answers.
Can anyone offer advice as to what they have done about this same problem on their machines.

Title: Re: Seagate STT220000A Drive
Post by: blakeh on March 09, 2003, 07:22:32 PM

I get the same messages.  I remember seeing a post from Charlie Brady saying that it might be an issue with the ide-scsi interface and to try going straight ide, but didn't really say how and I've never bothered digging into it more. I know this probably doesn't help much.

Title: Re: Seagate STT220000A Drive
Post by: Dan Williams on March 09, 2003, 07:37:47 PM

Hi,
I have talked directly with Seagate about this, the following is reply from Seagate, I have not tried this yet. Again, this is not my advice, it is Seagate reply. Maybe Charlie or somebody in the know will see this, and reply?

+++Seagate Reply++++
Log into Root.
Depending on the modules running try this.
Type    rmmod ide-tape and enter.
Type    rmmod ide-scsi and enter.
Type    insmod ide-scsi and enter.
Type    insmod sg and enter.
Insert a tape into the drive wait till it stops moving.
Now type      tar -cvf /dev/st0 /etc       and enter.
+++End Seagate Reply+++

+++Dan Question+++
BEFORE I do any of this, it will not mess my system up will it?
+++End Dan Question+++

+++Seagate Reply++++
No.
Linux needs an IDE tape drive to emulate SCSI.
If the IDE-TAPE and IDE-SCSI modules are both loaded, IDE-TAPE causes issues.
So we unload both modules then load IDE-SCSI which will have the tape  drive emulate a SCSI drive making its device name st0.
It is a known issue.
+++End Seagate Reply+++

+++Dan Question+++
Do you have to do the commands every time the server is restarted?
+++End Dan Question+++

+++Seagate Reply++++
If the system is booted it will load the modules wrong again.
Do this.

Add the following lines to the modules.conf file located in the /etc
directory

alias ide-tape off
below st ide-scsi

The "alias ide-tape off" line will turn off the ide-tape module at boot.
The "below st ide-scsi" will load the ide-scsi module after st has loaded,
at boot.
+++End Seagate Reply+++