Re: Problems with slow backup!

From: jeff barratt-mccartney (jbarratt_at_COMPSAT.COM)
Date: 08/25/04

  • Next message: jeff barratt-mccartney: "Re: Shark to FAStT performance?" 
    Date:         Tue, 24 Aug 2004 20:51:15 -0400
To: aix-l@Princeton.EDU

    does anyone have a table of recommended block sizes by media or something
    akin to that? when do you use variable blocksize, when do you use another
    value (ie 262144 or something)?

    -----Original Message-----
    From: IBM AIX Discussion List [mailto:aix-l@Princeton.EDU]On Behalf Of
    Bill Verzal
    Sent: Tuesday, August 24, 2004 2:55 PM
    To: aix-l@Princeton.EDU
    Subject: Re: Problems with slow backup!

    Tape block size is usually the culprit of this problem.
    --------------------------------------------------------

    There are only 10 types of people in the world: Those who understand
    binary, and those who don't ...

    Bill Verzal
    Project Leader, Komatsu America

    (847) 970-3726 - direct
    (847) 970-4184 - fax

                 "Bright, Frank"
                 <FBright@UARTS.ED
                 U> To
                 Sent by: IBM AIX aix-l@Princeton.EDU
                 Discussion List cc
                 <aix-l@Princeton.
                 EDU> Subject
                                           Problems with slow backup!

                 08/24/2004 01:20
                 PM

                 Please respond to
                      IBM AIX
                  Discussion List
                 <aix-l@Princeton.
                       EDU>

    Question:

    After having a new tape drive installed on our system we have been having
    slower backups. They have increased more than 30mins. For the same amount
    of data.

    I am trying to troubleshoot this problem and get it back to where it
    backups at its normal time. What kind of things should I look for in
    troubleshooting this problem? Would error saying the image maybe to large
    for tape have something to do with this problem?

    Thanks in advance!

    Frank

    ___________________________________________________
    Frank M. Bright fbright@uarts.edu
    Administrative Computing
    University of the Arts (A15) http://www.uarts.edu
    320 S. Broad St. 215-717-6081(w)
    Philadelphia, PA 19102 215-717-6087(f)
    Colleague 17.0.14 AIX 5.2.0.2 Unidata 6.03

  • Next message: jeff barratt-mccartney: "Re: Shark to FAStT performance?"

    Relevant Pages