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One Backup is taking much time to complete

114
Level 4

Hi,

In our environment, One backup is taking much time to complete (6 hrs approx for 16GB size).
We haven't made any changes in recent times. 

Details:

Netbackup version: 8.1.1

Master server OS:  AIX 7.1

Media Server OS : AIX 7.1

Please help.

3 REPLIES 3

114
Level 4

It's a Normal FS backup.

Nicolai
Moderator
Moderator
Partner    VIP   

There is a couple of things to investigate

Use GEN_DATA file directive to check if there is sufficient bandwidth from client to master/media. 

https://www.veritas.com/support/en_US/article.100030600

Use bpbkar to check if local file system is able to read data fast enough using command below:

time /usr/openv/netbackup/bin/bpbkar  -nocont -nofileinfo -nokeepalives /slow_file_system  > /dev/null 2> /tmp/file.out

This command will measure the time Netbackup bpbkar process is to read data off the file system. Read data is send to nowhere. Netbackup cannot backup data faster than the file system can deliver.

That said, slow backup are usually caused by a ton of small files. E.g trace or audit files so team up with the AIX admin to have a look at the file system.

 

Hi,

Please accept my apologies for the delay.
Please find the output.
time /usr/openv/netbackup/bin/bpbkar -nocont -nofileinfo -nokeepalives /slow_file_system > /dev/null 2> /tmp/file.out
srmprddb# cat file.out
INF - Estimate:-1 -1