🚀 go-pugleaf

In article <1992Dec14.212622.28856@midway.uchicago.edu>  
cpl1@kimbark.uchicago.edu (Corey Liss) writes:
> We've had some problems making tape backups of our NeXT server and
> user directories using 'dump' and 'restore' (under 3.0)...  Essentially,
> 'restore' seems unable to read data 'dump'ed to tape, although it *can*
> read data 'dump'ed to disk...  'tar' seems to work all right (but, of course,
> you can't do an incremental 'tar'...).  Has anyone else run into this  
problem?
> Any suggestions?

Actually you can do incremental tar/cpio/afio backups. Even much
better than with dump (IMHO - but I don't like dump anyhow, as many
people might know) 

Include in a script lines like:

cd /
find . -newer /usr/adm/LASTBACKUP.TIMESTAMP -print | \
tee /tmp/files | \
sed -f '/usr/local/adm/stopWords.backup' >> /tmp/copyTheseFiles

This writes all files of the path (here /) that are newer than the file
/usr/adm/LASTBACKUP.TIMESTAMP (which gets touched after a
successful backup) in a file and then (this dump can't do) excludes a
list of stopwords. (for example, I don't really want to backup my
swapfile and (all of) spool and tmp directories.) Finally this list
gets piped to afio (which is a better cpio): 

(cat /tmp/copyTheseFiles | \
/usr/local/bin/afio -ovuz -b126b -s150m /dev/rst0 | \
tee "/dev/"$tty ) >>& /usr/adm/backup.log

Okay, this line is a rather bad hack (it is running in tcsh - I should
rewrite the program for sh!!!! But no time and not the mood... ;-) ) 

	We have joy, we have fun,
	we have Pacman for the sun...
		
Ciao, Gerhard.
--
+---------------------------< principiis obsta! >---------------------------+
N  Gerhard Moeller, Teichstrasse 12, 2900 Oldenburg (FRG) [*: 02/21/1968]   N
e  Private: gemoe@proximus.north.de          Phone (voice): +49-441-75520   e
X  Uni:     Gerhard.Moeller@arbi.Informatik.Uni-Oldenburg.DE      NeXTmail  X
T  Z-Net:   Gerhard.Moeller@uniol.zer                          encouraged!  T
+-> NoGeNUG - Northern German NeXT User Group:  NoGeNUG@proximus.north.DE <-+

Corey Liss (cpl1@kimbark.uchicago.edu) wrote:
: We've had some problems making tape backups of our NeXT server and
: user directories using 'dump' and 'restore' (under 3.0)...  Essentially,
: 'restore' seems unable to read data 'dump'ed to tape, although it *can*
: read data 'dump'ed to disk...  'tar' seems to work all right (but, of course,
: you can't do an incremental 'tar'...).  Has anyone else run into this problem?
: Any suggestions?
: 
Run to your nearest ftp site and get gnutar.  It has options for doing
things like -newer...

If Userbackups are your big concern, look at TarChive on sonata.  It
uses gnutar, and writes log files, and it won't clobber someone elses tape 
left in the drive.


: Also:  Does anyone have any recommendations on a good DAT drive for use
: with the NeXT, or good tape drives in general?
: 

We have an Exabyte 8200, and a HP 35480A DAT.  The exabyte isn't worth
the powder it would take to blow to hell.  The HP is wonderful.  It just 
works, day after day after day.

--
=> Sherwood Botsford                   sherwood@space.ualberta.ca <= 
=> University of Alberta         Lab Manager, Space Physics Group <=         
=> tel:403 492-3713                             fax: 403 492-4256 <=