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Operating System - Tru64 Unix
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vdump question

Slayer Slayer
Frequent Advisor

vdump question

Hello All,

I have a question about vdump utility.
Nowadays my backup takes almost 3:00 hours to be completed.
Is there any parameter to make the vdump a bit faster ?

Here is the script i use to do the backup
Any comments will be appreciate.

#!/bin/sh
#/sbin/vdump -0uf /dev/nrmt0h /
# /dev/nrmt0h = DLT
#
echo "=================================="
echo "| BACKUP PARA D L T |"
echo "=================================="
echo " "
echo "*** VOLUME 0 ***"
/sbin/vdump -0uf /dev/nrmt0h /
#
echo " "
echo "*** VOLUME 1 ***"
/sbin/vdump -0uf /dev/nrmt0h /usr
#
echo " "
echo "*** VOLUME 2 ***"
/sbin/vdump -0uf /dev/nrmt0h /db_prod
#
echo " "
echo "*** VOLUME 3 ***"
/sbin/vdump -0uf /dev/nrmt0h /bi_prod
#
echo " "
echo "*** VOLUME 4 ***"
/sbin/vdump -0uf /dev/nrmt0h /dump_load
# TAPE REWIND AND OFFLINE:
mt offline

Regards

Bruno
6 REPLIES
Ralf Puchner
Honored Contributor

Re: vdump question

Using a backup software with parallel streams is a better option than vdump (e.g. networker).

It is also important that the tapes/disks are fast enough to write/get the data just in time to tape/from disk and not in stop/go mode waiting for data (due to I/O bottlenecks)

So a real backup software is mandatory for professional environments leading to reduced backup times and compatible backup mechanism in case of hardware outage.
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Slayer Slayer
Frequent Advisor

Re: vdump question

Do you recommend a software backup for tru64unix 4.0G ?

thanks a lot
Bruno
Mobeen_1
Esteemed Contributor

Re: vdump question

Bruno,
The following URL gives information on the product suggested by Ralf

http://portal2.legato.com/products/networker/




regards
Mobeen
Ralf Puchner
Honored Contributor

Re: vdump question

Bruno,

a backup is always necessary, but if you backup a huge amount of data every day use a professional software and not a simple OS tool.

There are so many tools out.. Veritas, Legato Networker, Amanda etc.
Help() { FirstReadManual(urgently); Go_to_it;; }
Slayer Slayer
Frequent Advisor

Re: vdump question

Hey Guys,

I have checked into my system to see if i have the "legato"
Under the /opt directory i have a legato directory.
How do i know if my backup is using the legato software ?
Or how do make the legato software to start working as my back utility.

Many thanks
Regards

BRuno
Ralf Puchner
Honored Contributor

Re: vdump question

Bruno,

check what version of legato is installed (setld -i |grep LGO). If starting nwadmin there should be no error message.

Btw. have a look into the documentation (legato will not be configured automatically and requires additional knowledge about the legato concept etc.) or remember what you have installed with the OS. Maybe there is a backup policy in your company and other people installed/enabled legato on your machine.

Some versions contains a single server legato edition, have a look into the release notes of your distribution.

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