Vdump

[Robert Brothers]

I am currently using Vdump (4.0D)in cron to backup to a TZ887. I am backing up 50GB of data. Here is the commands after Oracle shutdowns.
#/sbin/mt unload
echo "Backup of /.."
/sbin/vdump -O -C -N -U -u -q /
/sbin/date
echo "Backup of /usr.."
/sbin/vdump -O -C -N -U -u -q /usr
/sbin/date
echo "Backup of /raid0.."
/sbin/vdump -O -C -N -U -u -q /raid0
/sbin/date
echo "Backup of /raid1.."
/sbin/vdump -O -C -N -U -u -q /raid1
/sbin/date
echo "Backup of /raid4.."
/sbin/vdump -O -C -N -U -u -q /rai4
#/sbin/mt unload
/sbin/date
exit
I do not think it is pulling the next tape in the auto loader, do I need to change the script.
The backup will run one night and partially the next and I get an I/O error.
Thanks

[Abdul Rahiman]

I don't think vdump commands will automatically load the tape from the slot using the auotoloader.
You may be getting the errors because the tape is appending and ran out of space.
Seperate the vdumps to fit tape size and
use the "mcutil" commands to eject/load from the magazine.

regds,
Abdul.

[Pieter 't Hart]

The tape-robot can be set to automatically select the next tape (not the OS).
but with some models it takes to long for unix so it still fails.

Pieter

[Alexey Borchev]

1) Set up robot to automatically load next tape after unloading.

2) after part of job complete, issue
mt -f {your device} offline
- unload current tape, robot will load next.
sleep 10
- wait 10 seconds for robot to complete.

3) Test the metod manually with small files, before running it on night.
Check up autoloader works, sleep time is enough, etc...

4) You still have to watch on vdump saveset size to be <= tape size. Otherwize You'll get error and backup will fail.

[Ralf Puchner]

robot handling is done perfectly with professional backup software. Second advantage: higher backup speed (savestream plexing) and automatic oracle data handling (so database shutdown not necessary).