Chapter 10.7.2. Load measurement and stress tools
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198 SAN Volume Controller: Best Practices and Performance Guidelines Device #: 1 ============= Total Read Total Write Active Read Active Write Maximum I/ O: 20353800 9883944 0 1 4 SECTOR: 162956588 451987840 0 128 256 Transfer Size: <= 512 <= 4k <= 16K <= 64K > 64K 296 27128331 215 3108902 0 Also, an adapter level statistics command is available: datapath query adapstats ( also mapped to pcmpath query adaptstats). Refer to Example 10- 6 for a two adapter example. Example 10- 6 datapath query adaptstats output C:\ Program Files\ IBM\ Subsystem Device Driver> datapath query adaptstats Adapter #: 0 ============= Total Read Total Write Active Read Active Write Maximum I/ O: 11060574 5936795 ...
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