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MD3220 四部曲:
《DAS存储DELL MD3220配置记录》 http://dreamway.blog.51cto.com/1281816/1130444

《CentOS6.3安装PowerVault MD Storage Manager》 http://dreamway.blog.51cto.com/1281816/1131439

《CentOS6.3挂载DELL MD3220虚拟磁盘》http://dreamway.blog.51cto.com/1281816/1131557

《DELL R420 & MD3220 IO性能测试报告》http://dreamway.blog.51cto.com/1281816/1134064

1 、测试环境
操作系统版本
CentOS release 6.3 (Final) x86_64
 
内核版本
2.6.32-279.el6.x86_64 #1 SMP
 
文件系统
ext4
 
IO
cfq
 
测试机
DELL PE R420( 详见 R420 硬件配置信息 )
 
2 、DAS IO测试工具Iometer
Iometer 版本
1.1.0-rc1
 
Iometer 设置参数
Maximum Disk Sizes 
20000000Sectors (81GB)
 
of Outstanding I/Os
1/8/32
 
Run Time
2h
 
3 、R420硬件配置信息
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
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
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
4 、R420 IO性能测试
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
 
Access Specification Name
 of Outstanding I/Os
IOps
Read IOps
Write IOps
MBps (Decimal)
Read MBps (Decimal)
Write MBps (Decimal)
Transactions per Second
Average Response Time(ms)
 
4K; 100% Read; 0% random
8
78995.73001
78995.73001
0
323.56651
323.56651
0
78995.73001
0.101051
 
4K; 100% Write; 0% random
8
79386.4845
0
79386.4845
325.16704
0
325.16704
79386.4845
0.100447
 
4K; 100% Read; 100% random
8
235.249117
235.249117
0
0.96358
0.96358
0
235.249117
34.005524
 
4K; 100% Write; 100% random
8
1672.556382
0
1672.556382
6.850791
0
6.850791
1672.556382
4.782309
 
4K; 100% Read; 0% random
16
78929.86665
78929.86665
0
323.296734
323.29673
0
78929.86665
0.202484
 
4K; 100% Write; 0% random
16
79388.71514
0
79388.71514
325.176177
0
325.176177
79388.71514
0.201219
 
4K; 100% Read; 100% random
16
254.362938
254.362938
0
1.041871
1.041871
0
254.362938
62.901264
 
4K; 100% Write; 100% random
16
1685.435247
0
1685.435247
6.903543
0
6.903543
1685.435247
9.492133
 
4K; 100% Read; 0% random
32
78989.47286
78989.47286
0
323.540881
323.54088
0
78989.47286
0.404873
 
4K; 100% Write; 0% random
32
79375.04768
0
79375.04768
325.120195
0
325.120195
79375.04768
0.402844
 
4K; 100% Read; 100% random
32
258.860832
258.860832
0
1.060294
1.060294
0
258.860832
123.618606
 
4K; 100% Write; 100% random
32
1686.722898
0
1686.722898
6.908817
0
6.908817
1686.722898
18.968491
 

 
5、MD3220 IO性能测试
  文章字符限制内容略,完整版文档详见http://down.51cto.com/data/682369。

6、测试结论
                   
IO 测试结论:
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
 
 
 
 

因为格式及文章字符限制,内容未完,完整版还请下载文档,链接如下http://down.51cto.com/data/682369