HP StorageWorks Scalable File Share - Manual (Page 75)

Each disk shelf in the platform used for deep shelf testing was configured in the same manner
as described in
“Benchmark Platform” (page 67) . The arrangement of the shelves and controllers
was modified as shown in Figure A-10 .
A.7.2 Single Stream Throughput
For a single stream, striping improves performance immediately when applied across the available
OSSs, but additional striping does not provide further benefit as shown in
Figure A-11 . Tests
performed with a single process (on a single client) are limited by the throughput capabilities of
the process and the client connection.
Figure A-11 Stripe Count Versus Total Throughput (MB/s)
When single striped files are used in the deep shelf system, overall system throughput improves
with the number of clients in a scalable manner. Configuring files with more than one stripe
tends to increase interference when simultaneously accessing those files. The more files accessed,
the greater the interference.
With single striped files, performance scales well for at least a number of clients up to and
including the number of available OSTs. See
Figure A-12 .
A.7 DDR InfiniBand Performance Using MSA2312 with Three Attached JBODs 75