平台:AIX 5.3 单机 存在一个空闲磁盘hdisk1
总体思路:物理卷PV->卷组VG->逻辑卷LV(类型:raw)->添加表空间
1.查看所有可用卷组
# lsvg -o
rootvg
2.创建ORACLE的卷组datavg
# smitty lvm
Volume Groups
Add a Volume Group
Add an Original Volume Group
[Entry Fields]
VOLUME GROUP name [datavg]
Physical partition SIZE in megabytes 64 +
* PHYSICAL VOLUME names [hdisk1] +
Force the creation of a volume group? no +
Activate volume group AUTOMATICALLY yes +
at system restart?
Volume Group MAJOR NUMBER [] +#
Create VG Concurrent Capable? no +
# lsvg -o
datavg
rootvg
3.对datavg创建lvdata002裸设备
创建裸设备
# mklv -t raw -y lvdata002 -a e -e x -o y datavg 10
lvdata002
-e x设置裸设备划分到多盘
分配10个PP,即640M
# lsvg -l datavg
datavg:
LV NAME TYPE LPs PPs PVs LV STATE MOUNT POINT
lvdata002 raw 10 10 1 closed/syncd N/A
该卷组1个逻辑卷(裸设备)未被使用(如果在显示结果中closed/syncd状态的逻辑卷)
赋予裸设备权限
# chown -R oracle:oinstall /dev/rlvdata*
# chown -R oracle:oinstall /dev/lvdata*
4.登陆ORACLE,给表空间USERS添加裸设备数据文件
SQL> alter tablespace users add datafile ‘/dev/rlvdata002‘ size 100M; //SIZE 不能等于或大于LV值,裸设备名/dev/rlv*
Tablespace altered.
添加成功