The only issue there is that the EMC CDL does not support de-duplication, and it doesn’t look like they’ll be doing it any time soon.  I know they’re working on it, but they haven’t announced anything public, so who knows.  Compare that to the other de-dupe vendors that announced probably a year before they were ready, and you’ve got some sense of my opinion of when EMC de-dupe will actually be GA – if not later.

 

Your design would work great if you had de-dupe. Without de-dupe, you are going to be replicated 20 times more data (or more), requiring a significantly larger pipe.

 

 

We have it on our plan.  We will be using tape for only long term retention of data.

 

Our plan is to purchase another EMC CDL, and mirror our existing EMC CDL to the EMC CDL at our DR site.  Our master server already is duplicated, and this will allow us to start restores of stuff that is not tier 1 applications that already are mirrored to the DR site.

 

I would prefer not to save the long term on tape, but we don't have a solution for any other way to do it at this time.

 

Kevin

 

From: veritas-bu-bounces AT mailman.eng.auburn DOT edu [mailto:veritas-bu-bounces AT mailman.eng.auburn DOT edu] On Behalf Of Jeff Lightner
Sent: Friday, September 21, 2007 9:44 AM
To: veritas-bu AT mailman.eng.auburn DOT edu
Subject: [Veritas-bu] Tapeless backup environments?

Yesterday our director said that he doesn’t intend to ever upgrade existing STK L700 because eventually we’ll go tapeless as that is what the industry is doing.   The idea being we’d have our disk backup devices here (e.g. Data Domain) and transfer to offsite storage to another disk device so as to eliminate the need for ever transporting tapes.

It made me wonder if anyone was actually doing the above already or was planning to do so?