Path: utzoo!utgpu!news-server.csri.toronto.edu!rutgers!usc!sdd.hp.com!decwrl!ucbvax!mindcrf.UUCP!karish From: karish@mindcrf.UUCP Newsgroups: comp.unix.aix Subject: Re: RS/6000 AIX release tape format Message-ID: <9008072241.AA18366@mindcrf.mindcraft.com> Date: 7 Aug 90 22:41:45 GMT References: <1990Aug7.014808.16071@caen.engin.umich.edu> <1990Aug7.172615.19203@ux1.cso.uiuc.edu> Sender: daemon@ucbvax.BERKELEY.EDU Distribution: usa Organization: Mindcraft, Inc. Lines: 17 In article <1990Aug7.172615.19203@ux1.cso.uiuc.edu> shair@ux1.cso.uiuc.edu (Bob Shair) writes: >The IBM Support Center gave the U of Illinois the following >instructions for copying a stacked tape: > >1. Change the tape device to the correct blocking: > chdev -l rmt0 -a block_size=512 ^^^ 0 (variable block size) may be a better choice here. One of the problems we had here with the 9021 upgrade was that the default block size for our 1/2" tape drive was 1024. The drive wouldn't read existing tapes correctly until I changed this to 0. -- Chuck Karish karish@mindcraft.com Mindcraft, Inc. (415) 323-9000