sda 写 dd if=/dev/zero of=/app1/test/dd.log # dd if=/dev/zero of=/app1/test/dd.log 1975913+0 records in 1975912+0 records out 1011666944 bytes (1.0 GB) copied, 15.0658 seconds, 67.1 MB/s 读 dd if=/app1/test/dd.log of=/dev/null # dd if=/app1/test/dd.log of=/dev/null 1975912+0 records in 1975912+0 records out 1011666944 bytes (1.0 GB) copied, 6.53719 seconds, 155 MB/s 读写 dd if=/app1/test/dd.log of=/app1/test/dd2.log # dd if=/app1/test/dd.log of=/app1/test/dd2.log 1975912+0 records in 1975912+0 records out 1011666944 bytes (1.0 GB) copied, 17.1978 seconds, 58.8 MB/s ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 阵列 /home/sakai/mount/bak 写 dd if=/dev/zero of=/home/sakai/mount/bak/dd.log # dd if=/dev/zero of=/home/sakai/mount/bak/dd.log 3544417+0 records in 3544417+0 records out 1814741504 bytes (1.8 GB) copied, 24.3567 seconds, 74.5 MB/s 读 dd if=/home/sakai/mount/bak/dd.log of=/dev/null # dd if=/home/sakai/mount/bak/dd.log of=/dev/null 3544417+0 records in 3544417+0 records out 1814741504 bytes (1.8 GB) copied, 11.9376 seconds, 152 MB/s 读写 dd if=/home/sakai/mount/bak/dd.log of=/home/sakai/mount/bak/dd2.log # dd if=/home/sakai/mount/bak/dd.log of=/home/sakai/mount/bak/dd2.log 3544417+0 records in 3544417+0 records out 1814741504 bytes (1.8 GB) copied, 26.4129 seconds, 68.7 MB/s |
原帖由 yuio654 于 2008-12-23 11:23 发表
先介绍一下大概情况:
阵列是emc的cx-310,全光纤盘,与主机连接用的是4g的光纤通道卡,做的raid5
机器是IBM System x3650(7979B9C)
http://detail.zol.com.cn/135/134602/param.shtml
服务器的硬盘是 ...
原帖由 yuio654 于 2008-12-23 15:16 发表
联想的pc是个台式机,买的时间不长,
dd if=/bak/sdb/test_dd/test.log of=/dev/null
3941988+0 records in
3941988+0 records out
2018297856 bytes (2.0 GB) copied, 3.54748 seconds, 569 MB/s
...
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