On Saturday 06 April 2013 05:18:08 bingo wrote:
> Why do you really want to use VTL at all?
> 
> Using a DD you are talking to very fast network-attached AFTDs where NW 8 
> clients can even use new technologies like Flexible Blocksize & Direct File 
> Access. The data rates which you achieve here are amazing, especially when 
> you stream data from various clients to multiple AFTDs and - at the same time 
> - simulteanously clone data from these devices to tape (if needed at all). 
> Only in rare cases, the clients must have faster NICs than 1GbE but of course 
> that also depends on the data rate you must achieve.
> 
> My opinion is to avoid VTLs whenever possible. Yes, you have fast SAN access 
> but IMHO this is the the only benefit. You really force a disk to behave like 
> a tape and in general, you add an additional, unnecessary 'layer' which 
> limits the flexibility B2D would offer. And of course it is a an additional 
> component which potentially might cause trouble. Just avoid it!

I agree 110% !

Why emulate all the bad things with a tape?

Best
Dag