Wangtek 125M tape w/SCO Xenix 2.2
Ken Abrams
kabra437 at pallas.athenanet.com
Tue Apr 23 07:32:17 AEST 1991
I have an AT&T 6386 with a Wangtek 60M tape and SCO Xenix 2.2.3.
I am about to change out the tape drive with another one that is
identical to the old one except it is 125M capacity (these tape units
have AT&T part numbers but are actually Wangtek made).
I would like to compare notes with someone who is using a 125M tape
drive and Xenix 2.2. I think this should be a "plug and play" job
and I have asked SCO and "almost" got a good answer.
The key question hinges around an entry in /etc/default (and a related
backup command in cron). The /etc/default/archive file contains this
entry which I use from sysadmin for backups:
cdev=/dev/rct0 desc="Cartrige Drive (600 ft tape)" \
blocking=20 size=600 density=20000
This works well with the 60M capacity drive and the backup program seems
to properly calculate when the tape will be full. The question is: "What
do I change to get backup to recoginze the higher capacity?".
Do I simply change the density to 40000?
The related cron command for daily backups is:
/bin/backup 9sdf 600 20000 /dev/rct0 /dev/u
and the same question applies. (change 20000 to 40000).
Mail advice would be much appreciated. If there is sufficient interest,
I will post a summary.
--
========================================================
Ken Abrams uunet!pallas!kabra437
Illinois Bell kabra437 at athenanet.com
Springfield (voice) 217-753-7965
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