Video Screencast Help

Backup job is very slow and KB per second is very low

Created: 25 Mar 2013 • Updated: 22 Oct 2013 | 8 comments
mahmoud rady's picture
This issue has been solved. See solution.

Hi All

 I have an issue with NetBackup 7.5 on linux redhat 5 and the clients is solaries clients

The backup job is taking too long and the KB per seconds is very low on some solaries clients and the other clients is very fast and KB per second is too high and some times the same clients job stays green despite it is completed successfuly

Any suggests????????????

Operating Systems:
Discussion Filed Under:

Comments 8 CommentsJump to latest comment

Mark_Solutions's picture

What patch level are you on?

There is an issue with where jobs stay running after they have completed

However, if it says 100% but the job details do not say it has completed then it is probably still running but just has more data than its last run and so has exceeded its predicted data size

Easier to just pin down a particular client if it is running slow and look into that then look at things on a general basis - there are just too many variables to generalise

Provide more details / screen shots etc for us to assist (as well as exact versions involved)


Authorised Symantec Consultant

Don't forget to "Mark as Solution" if someones advice has solved your issue - and please bring back the Thumbs Up!!.

mahmoud rady's picture


my netbackup server is 7.5 on redhat 5

and the Clients is Solaries 10  netbackup client is 7.5

and the jobs take too long with KB per second is very low

If you need any logs tell me what you need and i will get it

Thanks for the fast response

Mark_Solutions's picture

You really should be on at least if you can to eliminate any bugs in earlier versions

After that, if all clients are slow then look first at buffer tuning

On your Media Servers under /usr/openv/netbackup/db/config/ do you have any SIZE_DATA_BUFFER or NUMBER_DATA_BUFFER files? If so what are the values in these files

Authorised Symantec Consultant

Don't forget to "Mark as Solution" if someones advice has solved your issue - and please bring back the Thumbs Up!!.

mahmoud rady's picture


No the issue is in 4 servers only and the other clients is very good i think the problem may be in the patch we will try to do this

thank you

PraveenCH's picture

As some client backups running faster and some are slow, we can consider there is no issues from media server side.

Here are the possible hickups:

1. Client side network interface/connectivity settings issue,

2. Network limitations/throughput hick ups.


mahmoud rady's picture

thanks for all the responses we now scheduling to upgrade media server and the clients to version

Marianne's picture

Have you checked client's own ability to generate data stream? 
You can use this bpbkar test:
Create bpbkar log folder
Add 'VERBOSE = 1' in cleint's bp.conf

/usr/openv/netbackup/bin/bpbkar -nocont -dt 0 -nofileinfo -nokeepalives /file-system > /dev/null
Check results in bpbkar log.
The next test is to ftp a file of +- 2GB in size to the media server. 
What is transfer rate?

Supporting Storage Foundation and VCS on Unix and Windows as well as NetBackup on Unix and Windows
Handy NBU Links