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评论:sas硬盘的IOPS 约为200~240左右,raid5sas的Openfile体系iops值濒临于实际硬盘值,不外有个疑难有2点:
IO最大吞吐量能够达到15M/s,iops稳固状况达到969 左右,而Latency在Load Level 31左右的时候达到5ms
MBPS:
This maps to this test:
Test: mytest
Small IO size: 8 KB
Large IO size: 8 KB
IO Types: Small Random IOs, Large Random IOs
Simulated Array Type: CONCAT
Write: 0%
Cache Size: Not Entered
Duration for each Data Point: 60 seconds
Small Columns:, 0
Large Columns:, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16
Total Data Points: 38
Latency:
试硬件配置如下:
映射成 /DEV/SDB
[root@openfiler ~]# df -h /tmp
Filesystem Size Used Avail Use% Mounted on
/dev/sda2 9.7G 737M 8.5G 8% /
(数据库OLTP类型,假设IO类型全体是8K随机操作,压力类型,主动加压,从小到大,始终到存储压力极限)
IO最大吞吐量可以达到8.15M/s,iops稳定状态达到1043 左右,而Latency在Load Level 22左右的时候达到5ms
This maps to this test:
Test: mytest
Small IO size: 16 KB
Large IO size: 16 KB
IO Types: Small Random IOs, Large Random IOs
Simulated Array Type: CONCAT
Write: 0%
Cache Size: Not Entered
Duration for each Data Point: 60 seconds
Small Columns:, 0
Large Columns:, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12
Total Data Points: 43
ORION VERSION 11.1.0.7.0
Latency:
挂载了一个雷同配置的R710服务器模仿的ISCSI存储(使用openfiler系统)
ORION VERSION 11.1.0.7.0
[root@openfiler ~]# grep SwapTotal /proc/meminfo
SwapTotal: 2040244 kB
1、openfile实际使用是否达到此峰值,是否还有潜力可发掘;
Name: /dev/sdb Size: 677531090944
1 FILEs found.
16 KB块测试成果:
cpu:model name : Intel(R) Xeon(R) CPU E5504 @ 2.00GHz
硬盘:6个SAS硬盘做RAID10阵列。
软件:
centos5.4
Commandline:
-run advanced -testname mytest -num_disks 8 -size_small 8 -size_large 8 -type rand
MBPS:
Name: /dev/sdb Size: 677531090944
1 FILEs found.
Commandline:
-run advanced -testname mytest -num_disks 6 -size_small 16 -size_large 16 -type rand
IOPS图表如下:
dell R710
内存:16GB
3、假如应用随机模式写入,iops又是多少。
IOPS图表如下:
2、惯例IP-SAN在6块硬盘下的iops能到达多少?
Maximum Large MBPS=8.15 @ Small=0 and Large=16
Maximum Small IOPS=1043 @ Small=28 and Large=0
Minimum Small Latency=4.89 @ Small=1 and Large=0
Maximum Large MBPS=15.07 @ Small=0 and Large=12
Maximum Small IOPS=969 @ Small=23 and Large=0
Minimum Small Latency=4.99 @ Small=1 and Large=0 |
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