Guang Yu Liu wrote:
> Thanks Dave,
> Our projected size requirement will be upto 300 clients and 15T 
> total full. Most of our policies will be 1 full and six incremental per 
> week. Assuming 20% change for incrementals we'd be looking about 5 - 7T 
> per 8hr night backup window. That'd be roughly 230MBps. Would one V440 
> be able to handle this kind of throughput? The management has an 
> argument that one V440 cost more than three Windows boxes with similar 
> (or better) speed. But if one V440 can handle the load and more stable 
> the argument would be stronger for us.

This is from my 3 v440's, Sol9. They effectively sit idle from Wed am -> Fri 
pm, 
so the bulk (~65TB) of this is moved from 18:00 Fri -> 08:00 Wed (110 hrs), on 
16 SDLTII drives. The other two drives handle the 'extra' ~300GB or so a week 
we 
need to move.

(0)[root@#master 23:51:18] /opt/openv/scripts/performance {531} ./data_moved.sh

         Thu Oct 27 23:51:20 PDT 2005
NetBackup Statistics for $media_server_2proc_2gig for the previous 168 hours
======================================================

              => Backup <=
Total Volume: 34709.3 Gbytes
Average Throughput: 17133.2 KBytes/sec    1003 MBytes/min

              => Duplicate <=
Total Volume: 429.118 Gbytes
Average Throughput: 17331.7 KBytes/sec    1015 MBytes/min

              => Restore <=
Total Volume: 0 Gbytes
NetBackup Statistics for $media_server_4proc_4gig for the previous 168 hours
======================================================

              => Backup <=
Total Volume: 19694 Gbytes
Average Throughput: 16509.1 KBytes/sec    967 MBytes/min

              => Duplicate <=
Total Volume: 0 Gbytes

              => Restore <=
Total Volume: 0 Gbytes
NetBackup Statistics for $master_server_4prog_4gig for the previous 168 hours
======================================================

              => Backup <=
Total Volume: 11281.1 Gbytes
Average Throughput: 15030.3 KBytes/sec    880 MBytes/min

              => Duplicate <=
Total Volume: 0 Gbytes

              => Restore <=
Total Volume: 0 Gbytes


Cheers,

jf