All, we're tying to maximize our throughput across gigabit Ethernet and
playing with the buffers etc to try and get faster numbers.
 
Client Buffer    NET_BUFFER_SIZE         NUMBER_DATA_BUFFERS_DISK
SIZE_DATA_BUFFERS_DISK   KB/sec 
256      262144  ---     ---     34000  
256      2097152         ---     ---     39500  
256      2097152         16      ---     37000  
256      2097152         16      262144  36000  
512      2097152         64      262144  40480  
1024     2097152         64      262144  37608  
1024     4194304         64      262144  37473  
 
 
Netbackup 5.1 Client --> Gigabit Copper --> Cisco Switch --> Gigabit
Fiber --> Media Server --> Direct Attached SCSI 320 Drive
 
Here's the results of some testing from this morning on one of my
fastest servers (as far as disk/processor/memory) are concerned.  It
looks like my "sweet spot" is about 40MB/sec through Netbackup.  If I
try and FTP several files directly from this server to the Media Server
via the same network config to disk I can get close to 60MB/sec.  Am I
missing some setting here?  Why can't I get even close to duplicating
the 60MB/sec I get via FTP?  My perfmon shows the server's nic only
pushing 45MB/sec or less with drops in communication every 10 seconds or
so.  I'm missing something, any ideas?
 
-Jonathan
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