软件RAID5的性能

6块硬盘组成软RAID5 读性能 327MB/s
files:~# dd if=/dev/md0 of=/dev/null  count=1000000 bs=16384
1000000+0 records in
1000000+0 records out
16384000000 bytes (16 GB) copied, 50.0908 seconds, 327 MB/s

6块硬盘组成软RAID5 用LVM虚拟存储管理器来管理, 读性能:156MB/s
files:~# dd if=/dev/mapper/vg0-liushiwei of=/dev/null  count=1000000 bs=16384
1000000+0 records in
1000000+0 records out
16384000000 bytes (16 GB) copied, 105.279 seconds, 156 MB/s


6块硬盘组成软RAID5 用LVM虚拟存储管理器来管理, 写性能:116MB/s
files:~# dd of=/liushiwei/zero.dat if=/dev/zero  count=800000 bs=16384
800000+0 records in
800000+0 records out
13107200000 bytes (13 GB) copied, 112.519 seconds, 116 MB/s

 



4核的amd桌面cpu