使用orion测试存储性能

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一、 Orion功能简介

orion是oracle提供的测试IO性能的工具，ORION 是一个独立工具，用户不需要创建和运行 Oracle 数据库。测试工具不需要安装，使用简单，功能强大。

可以通过http://www.oracle.com/technetwork/cn/topics/index-088165-zhs.html下载使用，目前版本是ORION: ORacle IO Numbers -- Version11.1.0.7.0，使用方法这里不再介绍，介绍下涉及压力测试的参数指标，使用以下指标几乎可以测试所有的IO场景

必选参数:run                     运行的测试类别 (simple, normal, advanced, dss, oltp)                        simple - tests random8K small IOs at various loads,                                 then random 1Mlarge IOs at various loads.                        normal - testscombinations of random 8K small                                 IOs and random1M large IOs                        advanced - run theworkload specified by the user                                   usingoptional parameters                        dss - run with random1M large IOs at increasing loads                                to determinethe maximum throughput                        oltp - run with random8K small IOs at increasing loads                                to determinethe maximum IOPS必选参数:testname                Name of the test runnum_disks               Number of disks (physicalspindles). Default is                        the number of LUNs in<testname>.lunsize_small              Size of small IOs (in KB) -default 8size_large              Size of large IOs (in KB) - default1024 type                    Type of large IOs (rand,seq) - default rand                          rand - Random largeIOs                          seq -  Sequential streams of large IOsnum_streamIO            Number of concurrent IOs per stream (only iftype is                        seq) - default 4simulate                Orion tests on a virtual volumeformed by combining the                        provided volumes in oneof these ways (default concat):                          concat - A serialconcatenation of the volumes                          raid0 - A RAID-0mapping across the volumeswrite                   Percentage of writes (SEEWARNING ABOVE) - default 0cache_size              Size *IN MEGABYTES* of thearray's cache.                        Unless this option isset to 0, Orion does a number                        of (unmeasured) randomIO before each large sequential                        data point.  This is done in order to fill up the array                        cache with randomdata.  This way, the blocks from one                        data point do notresult in cache hits for the next                        data point.  Read tests are preceded with junk reads                        and write tests arepreceded with junk writes.  If                        specified, this 'cachewarming' is done until                        cache_size worth of IOhas been read or written.                        Default behavior: fillup cache for 2 minutes before                        each data point.duration                Duration of each data point (inseconds) - default 60num_small               Number of outstanding small IOs(only if matrix is                        point, col, or max) - no defaultnum_large               For random, number ofoutstanding large IOs.                       For sequential, numberof streams (only if matrix is                        point, row, or max) -no default matrix                  An Orion test consists of data pointsat various small                        and large IO loadlevels.  These points can be                       represented as atwo-dimensional matrix: Each column                        in the matrix representsa fixed small IO load.  Each                        row represents a fixedlarge IO load.  The first row                        is with no large IOload and the first column is with                        no small IO load.  An Orion test can be a single point,                        a row, a column or thewhole matrix, depending on the                        matrix option settingbelow (default basic):                          basic - test thefirst row and the first column                          detailed - test the entire matrix                          point - test at loadlevel num_small, num_large                          col - varying largeIO load with num_small small IOs                          row - varying smallIO load with num_large large IOs                          max - test varyingloads up to num_small, num_largeverbose                 Prints tracing information tostandard output if set.                        Default -- not set运行时的例子For a preliminaryset of data        -run simpleFor a basic setof data        -run normalTo evaluatestorage for an OLTP database        -run oltpTo evaluatestorage for a data warehouse        -run dssTo generatecombinations of 32KB and 1MB reads to random locations:        -run advanced        -size_small 32 -size_large 1024 -typerand      -matrix detailedTo generatemultiple sequential 1MB write streams, simulating 1MB RAID0 stripes        -run advanced        -simulate RAID0 -stripe 1024 -write 100-type seq       -matrix col -num_small 0输出的文件介绍<testname>_<date>_summary.txt-  Summary of the input parameters alongwith                                 min. smalllatency, max large MBPS                                 and/or max.small IOPS.<testname>_<date>_mbps.csv- Performance results of large IOs in MBPS<testname>_<date>_iops.csv- Performance results of small IOs in IOPS<testname>_<date>_lat.csv- Latency of small IOs<testname>_<date>_tradeoff.csv- Shows large MBPS / small IOPS                                 combinations that can beachieved at                                 certain smalllatencies<testname>_trace.txt- Extended, unprocessed output