EMC
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EMC Performance
存储性能好坏无非看三个参数，存储性能直接影响主机的性能好坏与否 –Bandwidth (MB/s) •Important for backups, DSS operations, rich media access Throughput (IOPS) •Important for filesystem access, RDBMS; small requests (2-16KB) Response time •A key measurement of quality of service; an array can offer a high max IOPS figure, but deliver consistently slow response time Bandwidth (MB/s) [@more@]测试linux下的性能一般就用dd了，taobao就这么做。如果dd的性能都不行，其他就免谈了。上海linkto
