Re: IDE Tape Drive Compatibilty

From: John-Paul Stewart (jpstewart_at_binaryfoundry.ca)
Date: 08/26/04

  • Next message: Dr Balwinder Singh Dheeman: "User Agents Analysis Report" 
    Date: Thu, 26 Aug 2004 11:19:06 -0400

    Tony Jenkins wrote:
    > Is it possioble to get a Seagate Travan drive to work under linux. I am
    > trying to configure my Seagate STT20000 10/20 ide tape drive under Mandrake
    > 10 (download version). I previously tried Fedora 2 and SUSE 9.1. Upon boot
    > the drive is recognized properly and given the value of ht0. However,
    > neither mt nor Mandrake's built in backup can operate the drive. mt gives an
    > "i/o error"and the built=in software reports "no device found". Modprobe

    Did you use 'mt -f /dev/ht0' or make /dev/tape a symlink to /dev/ht0
    before using mt? Otherwise mt won't know which device to use.

    > shows that the ide-tape moduke is loaded and the tape was recognized under
    > another version of linux.
    >
    > I would especially like to configure the drive the run in scsi emulation so
    > that it can be used by the widest array of software, but at this point, I'd
    > settle just for its running.

    IDE-SCSI is certainly the best bet. Quite some time ago, several other
    people and I all discussed our problems with STT20000A drive and the
    ide-tape driver. The tape should work with DMA disabled. 'hdparm -d0
    /dev/hdX' will turn off DMA. (hdX corresponds to the block device for
    your tape drive. hda for the primary master, and so on, just like with
    IDE hard drives.)

    However, I'd encourage you to set up IDE-SCSI emulation instead. Add
    the appropriate 'hdX=ide-scsi' line to your LILO or GRUB configuration,
    reboot, 'modprobe st', and you're good to go. Note that this should
    work with DMA enabled, too.

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