Oracle ORION模拟Database负载测试存储性能.doc

　　Oracle ORION模拟Database负载测试存储性能 　　Oracle ORION（Oracle IO Number）是Oracle提供的存储性能测试工具，Oracle并不对其提供技术支持。该工具的最大特点在于可以在没安装Oracle Database软件的情况下，模拟Oracle负载，测试随机或顺序访问指定大小块的性能，性能指标包括：IOPS，MBPS，Latency（延迟时间）。 　　从Oracle Database 11g开始，ORION工具被集成到GI和Database软件中，所以在$GI_HOME/bin和$ORACLE_HOME/bin目录下都可以找到这个工具。如果是Oracle Database 10gR2需要手动下载ORION工具。 　　1.下面是$GI_HOME/bin目录下的ORION工具。 　　[root@rhel1 ~]#cd /u01/app/11.2.0/grid/bin 　　[root@rhel1 bin]# ./orion -help 　　ORION: ORacle IO Numbers -- Version .0 　　ORION runs IO performance tests that model Oracle RDBMS IO workloads. 　　It measures the performance of small (2-32K) IOs and large (128K+) IOs 　　at various load levels. 　　Each Orion data point is a test for a specific mix of small and large 　　IO loads sustained for a duration. An Orion test consists of multiple 　　data point tests. These data point tests can be represented as a 　　two-dimensional matrix. Each column in the matrix represents data 　　point tests with the same small IO load, but varying large IO loads. 　　Each row represents data point tests with the same large IO load, but 　　varying small IO loads. An Orion test can be for a single point, a 　　single row, a single column, or the whole matrix. 　　The run parameter is the only mandatory parameter. Defaults 　　are indicated for all other parameters. For additional information on 　　the user interface, see the Orion User Guide. 　　testname is the prefix used for all input and output filenames. By 　　default, it is orion. It can be specified with the testname 　　parameter. 　　testname.lun should contain a carriage-return-separated list of LUNs. 　　The output files for a test run are prefixed by testname_date where 　　date is yyyymmdd_hhmm. 　　The output files are: 　　testname_date_summary.txt - Summary of the input parameters, along with 　　the minimum small IO latency (in usecs), the maximum 　　MBPS, and the maximum IOPS observed. 　　testname_date_mbps.csv - Performance results of large IOs in MBPS. 　　testname_date_iops.csv - Performanc