DELL R420 & MD3220 IO性能测试报告

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<b>MD3220 四部曲：</b>

<b>1</b><b>、测试环境</b>

<b>操作系统版本</b>

CentOS release 6.3 (Final) x86_64

<b>内核版本</b>

2.6.32-279.el6.x86_64 #1 SMP

<b>文件系统</b>

ext4

<b>IO</b><b>调</b>

cfq

<b>测试机</b>

DELL PE R420(详见<b>R420</b><b>硬件配置信息</b>)

<b>2</b><b>、DAS IO测试工具Iometer</b>

<b>Iometer</b><b>版本</b>

1.1.0-rc1

<b>Iometer</b><b>设置参数</b>

<b>Maximum Disk Sizes</b> 

20000000Sectors（81GB）

<b>of Outstanding I/Os</b>

1/8/32

<b>Run Time</b>

2h

<b>3</b><b>、R420硬件配置信息</b>

Summary:        Dell R420, 1 x Xeon E5-2420 0 1.90GHz, 15.5GB / 16GB 1333MHz DDR3

System:         Dell PowerEdge R420 (Dell 01PP0V)

Processors:     1 (of 2) x Xeon E5-2420 0 1.90GHz 6400MHz FSB (HT enabled, 6 cores, 12 threads)

Memory:         15.5GB / 16GB 1333MHz DDR3 == 2 x 8GB, 10 x empty

Disk:           sda (scsi0): 1.2TB (7%) JBOD == 1 x DELL-PERC-H710P

Disk:           sdb (scsi1): 2.4TB JBOD == 1 x DELL-MD32xx

Disk:           sdc (scsi1): JBOD == 1 x DELL-Universal-Xport

Disk-Control:   ahci0: Intel C600/X79 series chipset 6-Port SATA AHCI Controller

Disk-Control:   megaraid_sas0: LSI Logic / Symbios Logic MegaRAID SAS 2208 [Thunderbolt]

Disk-Control:   mpt2sas0: LSI Logic / Symbios Logic SAS2008 PCI-Express Fusion-MPT SAS-2 [Falcon]

Network:        em1 (tg3): Broadcom NetXtreme BCM5720 Gigabit PCIe, 90:b1:1c:30:4d:3a, 100Mb/s &lt;full-duplex&gt;

Network:        em2 (tg3): Broadcom NetXtreme BCM5720 Gigabit PCIe, 90:b1:1c:30:4d:3b, no carrier

OS:             CentOS 6.3 (Final), Linux 2.6.32-279.el6.x86_64 x86_64, 64-bit

BIOS:           Dell 1.4.6 10/26/2012

R420 硬盘及RAID配置：RAID5 600G/2.5"/10k/sas*3+1块hotspare/RAID卡1GB缓存

<b>4</b><b>、R420 IO性能测试</b>

<b>两个设备硬件配置方面及RAID配置都一样：RAID卡1GB缓存、硬盘SAS/10k/2.5寸</b>

<b>Access Specification Name</b>

<b> of Outstanding I/Os</b>

<b>IOps</b>

<b>Read IOps</b>

<b>Write IOps</b>

<b>MBps (Decimal)</b>

<b>Read MBps (Decimal)</b>

<b>Write MBps (Decimal)</b>

<b>Transactions per Second</b>

<b>Average Response Time(ms)</b>

4K; 100% Read; 0% random

8

78995.73001

323.56651

0.101051

4K; 100% Write; 0% random

79386.4845

325.16704

0.100447

4K; 100% Read; 100% random

235.249117

0.96358

34.005524

4K; 100% Write; 100% random

1672.556382

6.850791

4.782309

16

78929.86665

323.296734

323.29673

0.202484

79388.71514

325.176177

0.201219

254.362938

1.041871

62.901264

1685.435247

6.903543

9.492133

32

78989.47286

323.540881

323.54088

0.404873

79375.04768

325.120195

0.402844

258.860832

1.060294

123.618606

1686.722898

6.908817

18.968491

5、MD3220 IO性能测试

<b>6、测试结论</b>

<b>IO</b><b>测试结论：</b>

主要测试4k数据顺序、随机读写IO性能

R420随机读写性能较差，特别是随机读性能，相对MD3220随机读较好

MD3220 随机读写性能较差。除随机读性能外，其他方面比R420性能较好

本文转自pandazhai 51CTO博客，原文链接:http://blog.51cto.com/dreamway/1134064