You mention 20 MB/sec and that the SAP database is on an SSA array.   Well
some SSA array's have a maximum throughput of 20 MB/sec. This depends on the
adapter, and how you have the SSA array configured.
It would be nice to get the machines hardware configuration more completely.

Also have you benchmarked your SSA array to see what maximum throughput it
can sustain.   If you are running 8 streams of backup through one SSA
adapter, you could run into contention.

James Thompson

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