服务器磁盘阵列

线上mysql将binlog 跟data放不同的物理磁盘

以测试环境162mysql为例

查看 /etc/my.ini

datadir=/dat/mysql

查看该目录所在的逻辑分区

# df -h /dat/mysql/
Filesystem            Size  Used Avail Use% Mounted on
/dev/sda1              71G   51G   17G  76% /

说明mysql 数据文件存放在/dev/sda1 分区上

查看挂载

mount -l
/dev/sda1 on / type ext3 (rw) [/]
proc on /proc type proc (rw)
sysfs on /sys type sysfs (rw)
devpts on /dev/pts type devpts (rw,gid=5,mode=620)
/dev/sda7 on /tmp type ext3 (rw) [/tmp]
/dev/sda6 on /var type ext3 (rw) [/var]
/dev/sda3 on /home type ext3 (rw) [/home]
/dev/sda2 on /usr type ext3 (rw) [/usr]
tmpfs on /dev/shm type tmpfs (rw)
none on /proc/sys/fs/binfmt_misc type binfmt_misc (rw)
sunrpc on /var/lib/nfs/rpc_pipefs type rpc_pipefs (rw)
nfsd on /proc/fs/nfsd type nfsd (rw)

参考

RAID 1，0 10 01介绍   http://tech.watchstor.com/storage-systems-120842.htm

RAID 0+1与RAID 1+0区别简介  http://tech.watchstor.com/storage-module-120974.htm

MegaCli 软件可以查看RAID信息

linux 系统安装分区划分  http://blog.youkuaiyun.com/aaronychen/article/details/2270048