RMAN script- delete archives.

Question

Is this a solid rman backup script? I am getting varied times for a daily backup- some days it's a normal 1 hour, next day it's 6 hours. I can't find a reason- no errors are being generated, I am told to find out why this server does this and not our other servers- they were all built the same (same hardware/os/database build).
I am new to RMAN, but here is my "at job" running nightly.
rman target/
run {
backup database plus archivelog;
delete noprompt obsolete;
delete expired archivelog all;
sql 'alter system archive log current';
exit
Any reason why RMAN would run longer on certain days? Where do I look to figure this out?

Answer 1

rman target/
run {
backup database plus archivelog;
delete noprompt obsolete;
delete expired archivelog all;
sql 'alter system archive log current';
exitWhen you use "plus archivelog" then you dont need to issue "'alter system archive log current';" command bcz after taking DB backup it switches the logfile.
For slowness, I will say check the system state when it misbehave. Check for any locks/wait-events in the DB. Do you run any other process at that time when backup runs?? Check for any other scheduled tasks on that box on that time. Also check alert log for that time period for more information.
they were all built the same (same hardware/os/database build).Can you tell us what hardware/os/database you are on??
Daljit Singh