Slow Performance Issue - Solaris 11

Hello Forum,

Solaris 11 MASTER/MEDIA.

NBU - 7.6.0.1

Backup Type  :  BCV SAN based. ( FS mounted on Media Server and taken on tape).

No. Of Drives per Media server : 8

STU Multiplexing : 3

Media Multiplexing : 3

Media server Memory : 393216 MB

Media Server Swap :

swapfile             dev    swaplo   blocks     free
/dev/zvol/dsk/rpool/swap 285,2        8K     4.0G     4.0G
 

NUMBER DATA BUFFER : 1048576
SIZE DATA BUFFER : 64

Try to achieve a throughput of 1 GB per stream, unable to get through.

Pls. suggest config changes/settings/parameters to be set to achieve the same.

Thanks in Advance