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用一台HP 380G7,做好了raid5,然后安装的solaris 10,以及oracle 10g的数据库,
后来发现数据库性能很差,以为I/O是瓶颈,经测试,在OS里拷贝一个大文件,速度也很差:
拷贝文件时的状态 :
bash-3.2# iostat 2 10
tty sd0 sd1 nfs1 cpu
tin tout kps tps serv kps tps serv kps tps serv us sy wt id
0 1 249 15 41 0 0 3 0 0 0 1 0 0 99
0 97 47850 243 66 0 0 0 0 0 0 0 1 0 99
0 34 45036 225 62 0 0 0 0 0 0 0 1 0 99
0 34 46547 231 69 0 0 0 0 0 0 0 1 0 99
0 34 40164 220 65 0 0 0 0 0 0 0 1 0 99
0 34 38909 273 110 0 0 0 0 0 0 0 1 0 99
0 34 42199 219 71 0 0 0 0 0 0 0 1 0 99
0 34 43754 216 66 0 0 0 0 0 0 2 1 0 97
0 34 39706 218 68 0 0 0 0 0 0 0 1 0 99
0 34 34710 240 70 0 0 0 0 0 0 1 1 0 98
bash-3.2# iostat -xtc
extended device statistics tty cpu
device r/s w/s kr/s kw/s wait actv svc_t %w %b tin tout us sy wt id
sd0 1.2 14.2 72.3 177.3 0.1 0.6 41.1 0 12 0 1 1 0 0 99
sd1 0.1 0.0 0.1 0.0 0.0 0.0 3.1 0 0
nfs1 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0 0
bash-3.2# sar -b 2 10
SunOS STCNCDM41101 5.10 Generic_147441-01 i86pc 04/13/2012
15:43:14 bread/s lread/s %rcache bwrit/s lwrit/s %wcache pread/s pwrit/s
15:43:16 1 9447 100 2 4507 100 0 0
15:43:18 0 9731 100 21 4608 100 0 0
15:43:20 0 9708 100 18 4654 100 0 0
15:43:22 0 10503 100 1 5020 100 0 0
15:43:24 0 8586 100 1 4084 100 0 0
15:43:26 0 10491 100 2 5012 100 0 0
15:43:28 0 10469 100 1 4995 100 0 0
15:43:30 0 10928 100 1 5226 100 0 0
15:43:32 0 10403 100 1 4968 100 0 0
15:43:34 0 8151 100 20 3895 99 0 0
Average 0 9841 100 7 4696 100 0 0
感觉磁盘本身的I/O就有问题?还是solaris x86对I/O有什么限制? |
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