Video Screencast Help


Created: 03 Dec 2012 | 5 comments

There are six general types of snapshot technologies (see table below):

  • Copy-on-write
  • Redirect-on-write
  • Clone or split-mirror
  • Copy-on-write (COW) with background copy
  • Incremental
  • Continuous data protection (CDP)

How to check what Netbackup is using for backup windows client?


Open storage.

Comments 5 CommentsJump to latest comment

RamNagalla's picture


for windows client Netbackup do use the as Microsoft’s Volume Shadow Copy Service (VSS) after window 2003, eariler to window 2003 its VSP .those are software based snapshots.

read the below white papers to know about teh NBU snapshots.

ramLUKE's picture

OK.So how can i check what NBU is using?

RamNagalla's picture

if your window is 2003 and latest its Microsoft’s Volume Shadow Copy Service (VSS)

if its windows 2k its VSP...

you need to read the docs to understand that..

Marianne's picture

Please show us one of your policies:
bppllist <policy-name> -L

As well as output for one of your clients:
bpclient -client <client-name> -L

Please also read all of these discussions once more: 

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

mph999's picture

The answers are in the manuals, is here any reason you haven't simply looked this up ?

Try looking in the logs, then you will see ...

I will give you two clues:

1.  The logs would be on the client

2.  The log names begins with 'b'

Now, you need to :

Go and find the names of logs that could be on a client (use google)

Create these logs (Just make the log dirs in /netbackup/logs)

Run a backup

Look through the logs to find the snapshot used


You could look in host properties in the GUI for the master, it's in there, might have some thing to do with 'open ' files.

You could also glance through this:

In particular, points 'R' and 'T'


Regards,  Martin
Setting Logs in NetBackup: