BRU - backup and restore utility

BRU - backup and restore utility

Post by Bill Edmun » Fri, 24 Apr 1992 18:30:06

We have recently obtained hardware from Silicon Graphics. I would be interested
in hearing of peoples experiences with BRU. Also, what are the best options/
args for use with Exabyte tapes?

Many thanks in advance, Bill


BRU - backup and restore utility

Post by Dave Ols » Sat, 25 Apr 1992 11:55:47

| We have recently obtained hardware from Silicon Graphics. I would be interested
| in hearing of peoples experiences with BRU. Also, what are the best options/
| args for use with Exabyte tapes?

The options to use with 8mm tapes shouldn't really be much
different than those with any other drive, although
you might want to use a larger blocking factor, say around
256 for a bit better performance.  No need to specify
tape size.
Let no one tell me that silence gives consent,  |   Dave Olson
because whoever is silent dissents.             |   Silicon Graphics, Inc.


BRU - backup and restore utility

Post by david r coel » Sun, 26 Apr 1992 04:53:06

Quote:>We have recently obtained hardware from Silicon Graphics. I would be interested
>in hearing of peoples experiences with BRU. Also, what are the best options/
>args for use with Exabyte tapes?

>Many thanks in advance, Bill

I've been using BRU on my Sun for almost a year now. Great program, no problems, has
lots of useful features. Of particular interest is the compression stuff which gives
me 2 to 1 reduction when going to tape. I'm getting roughly 5 GIGs on my exabyte without
upgrading from my 2.3G unit to one of the newer ones (there is a CPU penalty though).
I would strongly recommend this program.

The following is a script I use to do backups, and to create a log of each backup.
Hope this helps....

# network backup                D.Coelho 9/14/90

# choose our backup device
set MT = /dev/rst1

# this is where the backup log file will be stored
set BACKUPDIR = /home/archive/backups

# set to -v -vv -vvv or -vvvv for debug output, set -Z for compression
set OPTIONS = -Z

# backup full file system, minus /tmp
set FILES = "/ /usr /var /usr/local /home /work"

# construct the backup record file name
set D = `date`
set FNAME = $D[2].$D[3].$D[6].BRUFULL

# create the backup log file

# setup some bru environment variables
setenv BRUTAB /usr/local/lib/bru/brutab
setenv BRUXPAT /usr/local/lib/bru/bruxpat
setenv BRUEXECLOG /var/adm/bruexeclog

# use the following if /tmp is not mounted
# setenv BRUTMPDIR /var/tmp
# this should be faster, runs in memory
setenv BRUTMPDIR /tmp

echo "-------- START FULL NETWORK BACKUP --------" | tee -a $BACKUPDIR/$FNAME
echo "Backup History in $BACKUPDIR/$FNAME" | tee -a $BACKUPDIR/$FNAME
echo "" | tee -a $BACKUPDIR/$FNAME
df | tee -a $BACKUPDIR/$FNAME
mt -f $MT rew |& tee -a $BACKUPDIR/$FNAME

# record backup start time
echo "" | tee -a $BACKUPDIR/$FNAME
date | tee -a $BACKUPDIR/$FNAME
echo "" | tee -a $BACKUPDIR/$FNAME

echo "***** BRU full backup of $FILES *****" | tee -a $BACKUPDIR/$FNAME
/usr/local/bin/bru -c $OPTIONS -L "BRU backup $FNAME" -B -m -f $MT $FILES |& tee -a $BACKUPDIR/$FNAME
/usr/local/bin/bru -g -b 64K -vvvv -B -f $MT |& tee -a $BACKUPDIR/$FNAME

# pickup the log information from the BRU log file
brulog 2 </var/adm/bruexeclog | awk '{print "tail ",$1," </var/adm/bruexeclog"}' | csh | tee -a $BACKUPDIR/$FNAME

# unload the tape
mt -f $MT offline |& tee -a $BACKUPDIR/$FNAME

# record backup stop time
echo "" | tee -a $BACKUPDIR/$FNAME
date | tee -a $BACKUPDIR/$FNAME

echo "" | tee -a $BACKUPDIR/$FNAME
echo "-------- END FULL NETWORK BACKUP --------" | tee -a $BACKUPDIR/$FNAME


43000 christy street                   voice: (510) 770-0875
fremont, ca 94538-3198                 fax:   (510) 770-0728


BRU - backup and restore utility

Post by Robert D. Haski » Tue, 28 Apr 1992 20:48:25

We have been using bru for about 9 months now, and it has saved numerous
man-hours.  We backup to a 4mm device, using bru's compression option.
Normally, I like to use standard Unix utilities, but in the area of backups,
I find Unix lacking.  bru's ability to do a verify (of a running system)
of a tape for errors gives me peace of mind that I could not get from
tar or dump.  We're using the script 'incbru' that came on the distribution
tape, which has worked well.  I've modified it to build a list of files
that are on each daily tape.

We did have some problems getting it to run correctly with the 4mm, but
EST was able to us running within several days.  All problems could be
attributed to DEC's device driver for the 4mm.  We are running a DECsystem
5500 running Ultrix 4.2.


1. Free BRU 2000 Backup and Restore Utility to GLUE user groups


Enhanced Software Technologies, Inc. announced that Groups of Linux
Users Everywhere (GLUE) will provide a free copy of the new BRU 2000
backup and restore utility to GLUE user groups.

BRU 2000 offers year 2000 compliant network backup capabilities for UNIX
systems along with support for backups of Windows, Windows NT, and
Macintosh systems. The new BRU for X11 graphical interface offers the
simplicity of point-and-click operation that makes it easy for UNIX
system administrators to reliably and conveniently backup and restore
data across departmental and enterprise networks.

"We are enabling GLUE to distribute a not-for-resale copy of BRU to
every GLUE user group to acknowledge the excellent response we've
received from the Linux community," said Ted Cook, President and CEO of
Enhanced Software Technologies, Inc. "As the Linux community becomes
increasingly familiar with BRU's 'Backup You Can Trust' capabilities,
we're certain that BRU will remain the leading backup utility for Linux

Enhanced Software Technologies, Inc. has joined Linux International as a
corporate member and is also offering members of GLUE user groups a
10-percent discount on purchases of BRU 2000.

"We are happy to extend Enhanced Software's generous offer of a BRU 2000
not-for-resale sample to our member groups. This offer reflects Enhanced
Software's commitment to the health and growth of the Linux community,
and is representative of the philosophies and tenets of the Linux
operating system," said Lydia Kinata of GLUE.

Enhanced Software Technologies, Inc., a privately held corporation based
in Tempe, Arizona, is a leading provider  outstanding customer support.
EST has been continuously developing and providing BRU (Backup and
Restore Utility) for the UNIX market since 1985. Contact Enhanced
Software Technologies, Inc. at PH: (602) 820-0042, E-mail:

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