Roy

This option increases communication and device I/O buffers. The
communication I/O buffer is used during data transfer with a client session,
such as a backup session. The disk I/O buffer is used when data is read from
or written to a disk storage pool. Reads and writes are quicker and server
resources are better utilized. By reducing CPU utilization, more clients can
concurrently be serviced, improving overall system performance.

Hope this helps...

-Demetrius
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