Pipe Question during Backup

[Cappellano, John J]

I am backing up via the DBM Gui to a pipe on HP-UX 11.11 (7.5 database
release). The pipe is sending 8k chunks at a time. Is there a way to
increase the chunks being sent to the pipe to help increase the backup
speed. Currently 10g of data backed up via the pipe to a gigabyte line
in 40 minutes using Galaxy software (Commvault). 
 
Thanks in advance