Re: Problem, SCSI tape backup

DUPRE Christophe (duprec@jsp.umontreal.ca)
Tue, 19 Mar 1996 11:14:32 -0500 (EST)


On Tue, 19 Mar 1996, Kai Makisara wrote:

> On Mon, 18 Mar 1996, DUPRE Christophe wrote:
> ...
> > When backuping, I use 'tar'. If the backup fits on one tape, I have no
> > problem to backup/restore. But if the backup takes more than one tape
> > (for example, the 1-gig disk...), tar just does with a segfault when
> > doing a restore/list.
> >
> If tar does a segfault, then you should look for the problem in tar. It
> can't handle properly what comes from the tape. BUT, the default options
> of the tape driver may not work with all tape drives with multi-tape
> backups. You could try to disable write-behind and buffered writes so that
> detection of end-of-tape is not delayed too late. You can do this either
> by editing the file st_options.h (and making a new kernel) or by using
> mt. See the file README.st and the mt man page for details.

I forgot to tell : with 1.3.71, I tried disabling write behind, all kind
of buffering etc in st_options.h ...
Now backuping is VERY slow, but the segfault still happens...

Christophe Dupre Universite de Montreal
Internet: duprec@jsp.umontreal.ca Qc, Canada
Montreal, Qc, Canada
"Nous ne sommes pas libres de ne pas etre libres, nous sommes obliges de
l'etre" - Fernando Savater

-- Geek Code 2.1 --
GCS d-- H+ s:++ g+ !p au-* a19 w+ v+ C++(+++) UIL++>+++ P+>++ L++
3- E---- N++ K W- M- V-- Y+ t++ 5++ !j R+ G- tv b++
D+ e+ u** h->++ f+ r++ n---(----) y+

#include <disclaimer.h>