从 12.1.0.2开始,oracle提供了一个 afd的东西,来替代asmlib库和 udev用于asm磁盘的处理。
也就是说,从12.1.0.2开始,要配置asm,在磁盘上,可以不用去配置 udev,或者安装 asmlib程序了,直接使用 afd即可搞定,这个afd是随oracle安装程序自带的,不需要到其他地方去下载,关键是使用 afd,启用了 filter后,root用户使用 dd 也不能破坏 disk,这点不错。下面我们在19c下面来操作一下 :
1.Log in as the root user
and set the environment variable
$ORACLE_HOME to the location of the Grid home
and the environment variable $ORACLE_BASE to a temporary location.
su root
set ORACLE_HOME=/u01/app/19.1.0/grid
set ORACLE_BASE=/tmp
You set $ORACLE_BASE to a temporary location to avoid creating diagnostic or trace files in the Grid home
before the Oracle Grid Infrastructure installation.
2.Use Oracle ASM command line tool (ASMCMD) to provision the disk devices for use with Oracle ASM Filter Driver.
./u01/app/19.1.0/grid/bin/asmcmd afd_label DATA1 /dev/sdb --init
./u01/app/19.1.0/grid/bin/asmcmd afd_label DATA2 /dev/sdc --init
./u01/app/19.1.0/grid/bin/asmcmd afd_label DATA3 /dev/sdd --init
3.Verify the device has been marked for use with Oracle ASMFD.
./u01/app/19.1.0/grid/bin/asmcmd afd_lslbl /dev/sdb
./u01/app/19.1.0/grid/bin/asmcmd afd_lslbl /dev/sdc
./u01/app/19.1.0/grid/bin/asmcmd afd_lslbl /dev/sdd
4.Unset the ORACLE_BASE environment variable.
之后,我们在安装gi时,asm的磁盘,就可以选择:/dev/sdb,/dev/sdc;/dev/sdd了。
如果去查看 /dev/oracleafd,就会发现新的盘了:
[root@rac1 ~]# ls -ltr /dev/oracleafd/disks
total 28
-rw-rw-r--. 1 grid oinstall 9 Nov 5 17:19 DATA1
-rw-rw-r--. 1 grid oinstall 9 Nov 5 17:19 DATA2
-rw-rw-r--. 1 grid oinstall 9 Nov 5 17:19 DATA3
来源:oschina
链接:https://my.oschina.net/u/3635497/blog/2988648