Hi Carlos,
Fragment size does not affect backups much, but it can improve restore times
a lot. This is because the restore job can seek or fast forward or locate to
the appropriate fragment for the restore much more quickly than if it had to
read through all of the data in one big fragment. Veritas recommends a
fragment size of 2048M. I use 5120M but only because I don't like seeing so
many fragments detailed in the backup log. The Veritas recommendation is
probably the better choice.

You are correct. This is only specified in the Storage Unit. You will see
the fragment size at work in the next backup job you run as each fragment
generates a separate message in the log.

Regards,
-Brian

-----Original Message-----
From: veritas-bu-admin AT mailman.eng.auburn DOT edu
[mailto:veritas-bu-admin AT mailman.eng.auburn DOT edu]On Behalf Of Carlos
Perales
Sent: Wednesday, May 15, 2002 8:46 AM
To: veritas-bu AT mailman.eng.auburn DOT edu
Subject: [Veritas-bu] Fragment Size

Hi,

I've a question.

How does fragment size affects backups ?
What are the pros and cons ?

Is there like a "better" fragment size setting ?

In case of making this modification, Do I only have to change the setting to
the
storage unit ?

THanks,
Carlos

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