Return to BSD News archive
Received: by minnie.vk1xwt.ampr.org with NNTP id AA171 ; Fri, 29 Jan 93 03:01:48 EST Path: sserve!manuel.anu.edu.au!munnari.oz.au!sgiblab!sdd.hp.com!nigel.msen.com!math.fu-berlin.de!fauern!uni-erlangen.de!cip.informatik.uni-erlangen.de!vepaepck From: vepaepck@cip.informatik.uni-erlangen.de (Volker Paepcke) Newsgroups: comp.unix.bsd Subject: [386BSD] problems with QIC-02 streamer driver Date: Wed, 27 Jan 1993 22:53:06 GMT Organization: CSD., University of Erlangen Message-ID: <1k73oiEINNlj4@uni-erlangen.de> NNTP-Posting-Host: faui00a.informatik.uni-erlangen.de Lines: 25 hi! I've some problems with the specification of the correct blocksize for accessing the streamertape (wangtek qic-02). With 512 byte blocks and 1kb blocks there is no problem. But at greater blocksizes I got anly part of the stuff back after restoring from tape (there is no error reporting from tar or from the kernel!!!). It seems to me, that there is only a small blocksize for tape-access allowed, but there is another problem: With small blocksizes the tapestreamer is repositioning all the time while IO-operations wich is not very good for the tapes and very very slow! I saw a buffering capability in the BSDI/386 rewritten code of the wt.c driver stuff. Is there something similar like buffering or any patches for improvement on this subject which is running under 386bsd too? Buying a SCSI-streamer device is no solution for me, since i don't have the money right now. Any help is apreciated! thanks in advance, volker oh, i forgot: Can i write tapemarks and is there a mt-command?