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reason why flash incremental backup gives low throughput

Created: 30 Apr 2013 | 3 comments

Dear All,

Can any body share tach note or explaniation whay flash incremental backup gives low throughput aproximate 20-25 Mps

Thanks

Operating Systems:
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Marianne's picture

Please provide all relevant info...

You have selected Windows XP as the OS. Really?

And NBU version?

Details about your policy - FlashBackup for VMware backup or raw partition backup for standalone server?

What kind of throughput are you seeing on Full backups?

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

Raaavan's picture

Thanks,

I have attached policy details

master server netbackup 7.5.0.4 / Solaris

Media server on which flash backup implimented is @ 6.5.0.4 / windows XP

I am getting throughput up to 20 mbps - 30 mps

The reson behind the query i want justify to client (make me correct if i am wrong) that flash incremental backup will give low through put compare to normal flash bcakup for file system backup

so i need some statment to justify the same or any tache note which can justify the same

Thanks

Marianne's picture

Probably not Windows XP on media server.... (not supported).

Incremental is normally slower because the filesystem needs to be 'walked' to find changed files. The matching blocks are then backed up.

I am not aware of any documentation for this - just experience.

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