Re: Mixing IDE and IDE-SCSI emulation on a Channel

• Previous message: Ryan Golhar: "RE: Dell GX270 / Intel 865 Graphics Cards / XFree86 4.3.0"
• In reply to: Reuben D. Budiardja: "Mixing IDE and IDE-SCSI emulation on a Channel"
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To: redhat-list@redhat.com
Date: Fri, 27 Feb 2004 08:45:49 -0800

Reuben D. Budiardja wrote:
> Hi all,
> I recently put in a CD-RW drive in my system, and make it the master drive on
> the secondary channel (hdc). The CD Rom drive that was already there becomes
> the slave hdd.
> Following the CD-Writing-Howto, I finally figure out how to use
> cdrecord/xcdroast and that I have to use the CD-RW as a SCSI device using the
> ide-scsi emulation module (the Redhat doc in redhat site is horrible and not
> helping by the way).
>

    You sure you jumpered the 2 drive correctly

> But I still can't figure out how to play regular CD player, or rip a CD to mp3
> using grip on that CD-RW drive, which acts as if it were a SCSI device. No
> problem, I thought, I just use the other CD-rom drive. However, when ripping
> a CD, I notice that the performance is kinda slower than usual. For example,
> lame would have to sit idle waiting for the ripping to complete, when usually
> the ripping of 1 CD would complete and lame would be behind like 75 % of
> completion.

    You should be able to use the cdrom that is in scsi emulation. Are
you attempting to use /dev/scd0?

> Another problem, I have found the CD-ROM device to generate errore like below,
> 2 times after I installed the CD-RW:
>
> kernel: hdd: ATAPI reset complete
> kernel: hdd: irq timeout: status=0xd0 {Busy}
> kernel: hdd: irq timeout: error=0xd0LastFailedSense 0x0d
>
> Once it makes the system hung intermittenly, it almost crashed the system. But
> I managed to reboot and it seems that it fixed the problem (at least up till
> now). I don't know if this just coincidence of has anything to do with the
> newly installed CD-RW.
>
> So, no real quantitative assesment yet (not sure how to do that), but I am
> wondering if mixing the IDE-SCSI simulated device (CD-RW) and IDE/ATAPi
> device (CD-rom) in a single channel as Master and Slave would make my CD-ROM
> slower and generate those problems.
>

   No it's most likely due to the fact that you're using a master slave
config. What kernel rev are you running? What settings do the 2 drives
claim via hdparm? "hdparm -vi /dev/hdc /dev/hdd"?

-- 
Unless you can't avoid it never put a
serial number on any of your systems!!
(The Numberless Rule of Hardware Acquisition)
Sam Flory  <sflory@rackable.com>
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• Previous message: Ryan Golhar: "RE: Dell GX270 / Intel 865 Graphics Cards / XFree86 4.3.0"
• In reply to: Reuben D. Budiardja: "Mixing IDE and IDE-SCSI emulation on a Channel"
• Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]