Oracle 10g RAC OCRVoting disk更换
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环境:OEL 5.7 + Oracle 10.2.0.5 RAC
需求:更换存储,OCR、Voting disk同时需要更换到新存储。
1.替换OCR
替换OCR(Oracle Cluster Registry)首先需要关闭RAC所有节点的crs,然后导出当前的ocr配置文件,手工修改ocr.loc文件后,导入ocr配置文件,可选择性创建ocrmirror。
本次实验演示就是将原来的/dev/raw/raw1替换为/dev/raw/raw14,并创建ocrmirror为/dev/raw/raw15.
--replace ocr
--两个节点关闭crs
/s01/oracle/product/10.2.0/crs_1/bin/crsctl stop crs
--ocrcheck
/s01/oracle/product/10.2.0/crs_1/bin/ocrcheck
--导出ocr的配置
/s01/oracle/product/10.2.0/crs_1/bin/ocrconfig -export /tmp/ocrfile.dmp
--查看文件大小
ls -lrt /tmp/ocrfile.dmp
--两个节点修改ocr为新的/dev/raw/raw14
cat /etc/oracle/ocr.loc
--导入ocr配置文件
/s01/oracle/product/10.2.0/crs_1/bin/ocrconfig -import /tmp/ocrfile.dmp
/s01/oracle/product/10.2.0/crs_1/bin/ocrcheck
--增加ocrmirror
/s01/oracle/product/10.2.0/crs_1/bin/ocrconfig -replace ocrmirror /dev/raw/raw15
/s01/oracle/product/10.2.0/crs_1/bin/ocrcheck
--最后查看ocr.loc文件
cat /etc/oracle/ocr.loc
实际测试替换OCR的关键操作:
[[email protected] rules.d]# /s01/oracle/product/10.2.0/crs_1/bin/crsctl stop crs
[[email protected] rules.d]# /s01/oracle/product/10.2.0/crs_1/bin/ocrconfig -export /tmp/ocrfile.dmp
[[email protected] rules.d]# vi /etc/oracle/ocr.loc
ocrconfig_loc=/dev/raw/raw14
local_only=FALSE
[[email protected] rules.d]# /s01/oracle/product/10.2.0/crs_1/bin/ocrconfig -replace ocrmirror /dev/raw/raw15
[[email protected] rules.d]# /s01/oracle/product/10.2.0/crs_1/bin/ocrcheck
Status of Oracle Cluster Registry is as follows :
Version : 2
Total space (kbytes) : 96144
Used space (kbytes) : 4652
Available space (kbytes) : 91492
ID : 1953645605
Device/File Name : /dev/raw/raw14
Device/File integrity check succeeded
Device/File Name : /dev/raw/raw15
Device/File integrity check succeeded
Cluster registry integrity check succeeded
[[email protected] ~]# cat /etc/oracle/ocr.loc
#Device/file getting replaced by device /dev/raw/raw15
ocrconfig_loc=/dev/raw/raw14
ocrmirrorconfig_loc=/dev/raw/raw15
local_only=false
[[email protected] ~]#
2.替换voting disk
替换voting disk比较简单,只需要把新的voting disk加进来,然后把旧的删除即可。
本次实验演示就是新加/dev/raw/raw11,/dev/raw/raw12,/dev/raw/raw13,然后将原来的/dev/raw/raw2删除。
--replace voting disk
--which crsctl确认crsctl的全路径
/s01/oracle/product/10.2.0/crs_1/bin/crsctl
--查询当前的votedisk
crsctl query css votedisk
--添加新的votedisk
crsctl add css votedisk /dev/raw/raw11 -force
crsctl add css votedisk /dev/raw/raw12 -force
crsctl add css votedisk /dev/raw/raw13 -force
--删除旧的votedisk
crsctl delete css votedisk /dev/raw/raw2 -force
实际替换voting disk的关键操作:
[[email protected] rules.d]# /s01/oracle/product/10.2.0/crs_1/bin/crsctl add css votedisk /dev/raw/raw11
Cluster is not in a ready state for online disk addition
[[email protected] rules.d]# /s01/oracle/product/10.2.0/crs_1/bin/crsctl add css votedisk /dev/raw/raw11 -force
Now formatting voting disk: /dev/raw/raw11
successful addition of votedisk /dev/raw/raw11.
[[email protected] rules.d]# /s01/oracle/product/10.2.0/crs_1/bin/crsctl query css votedisk
0. 0 /dev/raw/raw2
1. 0 /dev/raw/raw11
located 2 votedisk(s).
[[email protected] rules.d]# /s01/oracle/product/10.2.0/crs_1/bin/crsctl add css votedisk /dev/raw/raw12 -force
Now formatting voting disk: /dev/raw/raw12
successful addition of votedisk /dev/raw/raw12.
[[email protected] rules.d]# /s01/oracle/product/10.2.0/crs_1/bin/crsctl add css votedisk /dev/raw/raw13 -force
Now formatting voting disk: /dev/raw/raw13
successful addition of votedisk /dev/raw/raw13.
[[email protected] rules.d]# /s01/oracle/product/10.2.0/crs_1/bin/crsctl query css votedisk
0. 0 /dev/raw/raw2
1. 0 /dev/raw/raw11
2. 0 /dev/raw/raw12
3. 0 /dev/raw/raw13
located 4 votedisk(s).
[[email protected] rules.d]# /s01/oracle/product/10.2.0/crs_1/bin/crsctl delete css votedisk /dev/raw/raw2
Cluster is not in a ready state for online disk removal
[[email protected] rules.d]# /s01/oracle/product/10.2.0/crs_1/bin/crsctl delete css votedisk /dev/raw/raw2 -force
successful deletion of votedisk /dev/raw/raw2.
[[email protected] rules.d]# /s01/oracle/product/10.2.0/crs_1/bin/crsctl query css votedisk
0. 0 /dev/raw/raw11
1. 0 /dev/raw/raw12
2. 0 /dev/raw/raw13
located 3 votedisk(s).
[[email protected] rules.d]#
附录:本次实验环境:
1.旧存储模拟:4块盘:其中第1块盘分成了2个区,绑定为raw设备raw1和raw2,分别给ocr和voting disk使用,剩余3块是给ASM使用的:
2.新存储模拟:10块盘:其中前三块(raw11,raw12,raw13)给voting disk使用,第4块和第5块(raw14和raw15)给ocr使用:
3.使用新存储3块10G的盘和2块5G的盘分别新增DATADG和FRA2个ASM磁盘组,其中DATADG是Normal冗余,FRA是External冗余:
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