I was just looking for like a percentage 10%, 20%, degradation...and if
meaning tape drive will not compress the encrypted data, if I am using
LTO3, the best I'll get on tape is about 400GB at best. I need to
figure out how many additional drives I may need to compensate the
encryption so I can still get all the backups done with the window.
Thanks
Dan
-----Original Message-----
From: Austin Murphy [mailto:austin.murphy AT gmail DOT com]
Sent: Wednesday, September 05, 2007 4:59 PM
To: Cruice, Daniel (US - Glen Mills)
Cc: veritas-bu AT mailman.eng.auburn DOT edu
Subject: Re: [Veritas-bu] Tape encryption
I don't know what you mean by tape degradation, but software
encryption does have a significant effect.
If you use the NetBackup encryption option, your tape drives will not
compress the encrypted data. max speed of the backup will be limited
by the CPU speed, not IO speed. You can also use the NetBackup
compression option, but that slows the whole operation down even more.
a lot more.
If you use a Decru device or drive level compression, it will do
compression at the same time.
In either situation, key management is a big deal.
Austin
On 9/5/07, Cruice, Daniel (US - Glen Mills) <dcruice AT deloitte DOT com>
wrote:
>
>
>
>
>
> Looking for some information regarding tape encryption, anyone out
there
> using it? And if so what kind of tape degradation did you experience.
We
> are being asked to implement it and we are just trying to figure out
what we
> are going to need. Our environment is mixed with Windows and UNIX,
all of
> our NBU servers are Windows (Master and Media) with a 20 drive LTO3
Library,
> over 900 clients. About 90% of our environment is running 6.0 MP4 and
soon
> will be rolling out 6.5 w/ MP1. Any gotchas we need to be aware of.
>
>
>
> Thanks
>
> Dan
>
>
>
>
>
>
>
> This message (including any attachments) contains confidential
information
> intended for a specific individual and purpose, and is protected by
law. If
> you are not the intended recipient, you should delete this message and
are
> hereby notified that any disclosure, copying, or distribution of this
> message, or the taking of any action based on it, is strictly
prohibited.
> _______________________________________________
> Veritas-bu maillist - Veritas-bu AT mailman.eng.auburn DOT edu
> http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu
>
>
This message (including any attachments) contains confidential information
intended for a specific individual and purpose, and is protected by law. If you
are not the intended recipient, you should delete this message and are hereby
notified that any disclosure, copying, or distribution of this message, or the
taking of any action based on it, is strictly prohibited.
_______________________________________________
Veritas-bu maillist - Veritas-bu AT mailman.eng.auburn DOT edu
http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu
|
