Issues with AIT-3, anyone?

From: Tulio Guimarăes da Silva (tuliogs_at_pgt.mpt.gov.br)
Date: 05/21/05

  • Next message: Peter Kieser: "Performance/lockup issues with FreeBSD as a router" 
    Date: Fri, 20 May 2005 19:28:41 -0300
To: freebsd-performance@freebsd.org

    Hello all,

       I´m having some trouble with a Sony SDX-700V AIT-3 tape unit. I
    described some of the trouble in -hardware, but I guess most of them are
    -performance issues.
      I was going to x-post the message to this list, but before that I´ll
    rather ask if anyone is having any trouble with these units in
    5.3-RELEASE. Also, does this version support AIT-3? I already searched
    the archives, but found nothing that could be of use (i´ll admit, maybe
    I missed something :P ).
      If there´s no know issues, then I´ll feel more prone to post that
    message in here, since it´s a bit long. But just to advance something:
    I´ve found that running "rsh [remote] tar -cvf - dir/ >/dev/sa0" is
    noticeably faster than "[remote]# tar -cvf mymachine:/dev/sa0 dir".
    Also, could there be anything wrong with "cat file.tar.gz >/dev/sa0"?
      These may seem dumb questions, but we used these flawlessly for some
    time with DDS-* tapes, but are not working with AIT...
      Ok, thanks in advance for any help. Cheers,

    Tulio

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