home *** CD-ROM | disk | FTP | other *** search
- Path: sparky!uunet!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?
-