anacreo wrote:
> 
> 
> <snip>
> 
> Let's say theoretical max speed you'll get on your VTL is a very
> generous 120MB/s...  You'd need 10 4gb HBA ports (with all paths
> having discreet bandwidth) to drive that.
> 
> Using a more typical 50MB/s average you'd need 4 4gb HBA ports worth
> of discreet traffic to drive that bandwidth.
> <big snip>
> 
> 


anacreo, can you walk me through your math?  120MBps is right at 1 Gbps....why 
do I need 10x 4 Gb HBA's, which I calc out at 40x the input speed?

I've got storage nodes that have a single 2Gb HBA's running to separate VTLs 
(albeit a different vendor) over a 2Gb SAN, and I see ~75 MBps traffic every 
day.

I'm not saying you're not right, I'm just interested in a little elaboration of 
your calcs...

Thanks!
--brerrabbit

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