遷移OCR

1.dd新的盤

dd if=/dev/zero of=/dev/mapper/mpathd bs=1M count=1024

2.建立新的ocr磁碟組（1節點）

create diskgroup VOT external redundancy disk '/dev/asm-diskd' attribute 'compatible.rdbms'='11.2','compatible.asm'='11.2';

3.2節點mount磁碟組

alter diskgroup VOT mount;

4.用ocrcheck檢視ocr資訊

[grid@ear1 ~]$ ocrcheck

Status of Oracle Cluster Registry is as follows :

Version : 3

Total space (kbytes) : 262120

Used space (kbytes) : 2984

Available space (kbytes) : 259136

ID : 1650000229

Device/File Name : +OCR

Device/File integrity check succeeded

Device/File not configured

Cluster registry integrity check succeeded

Logical corruption check bypassed due to non-privileged user

5.新的磁碟組新增ocr

/oracle/grid/crs_1/bin/ocrconfig -add +VOT

6.用ocrcheck檢視ocr資訊

[grid@ear1 ~]$ ocrcheck

Status of Oracle Cluster Registry is as follows :

Version : 3

Total space (kbytes) : 262120

Used space (kbytes) : 2980

Available space (kbytes) : 259140

ID : 1650000229

Device/File Name : +OCR

Device/File integrity check succeeded

Device/File Name : +VOT

Device/File integrity check succeeded

Device/File not configured

Cluster registry integrity check succeeded

Logical corruption check bypassed due to non-privileged user

7.檢視vote資訊

[grid@ear1 ~]$ crsctl query css votedisk

## STATE File Universal Id File Name Disk group

-- ----- ----------------- --------- ---------

1. ONLINE 9884ef58d7f64ff2bf0ac7302563830b (/dev/asm-diskb) [OCR]

Located 1 voting disk(s).

8.vote替換磁碟組

crsctl replace votedisk +VOT

9.再次檢視vote資訊

[grid@ear1 ~]$ crsctl query css votedisk

## STATE File Universal Id File Name Disk group

-- ----- ----------------- --------- ---------

1. ONLINE b0669b6b47b74f94bfe83061594de6d5 (/dev/asm-diskd) [VOT]

Located 1 voting disk(s).

10.檢視叢集狀態

crsctl stat res -t

11.重建spfile（gi）

show parameter spfile;

create pfile='/tmp/asmpfile.ora' from spfile;

create spfile='+VOT' from pfile='/tmp/asmpfile.ora';

12.重啟crs（cluster -all是2邊同時關、開）（1邊操作即可）

/oracle/grid/crs_1/bin/crsctl stop cluster -all

/oracle/grid/crs_1/bin/crsctl start cluster -all

13.確認spfile更改自動更改過

SQL> show parameter spfile;

NAME TYPE VALUE

------------------------------------ ----------- ------------------------------

spfile string +VOT/ear-cluster/asmparameterf

ile/registry.253.1088567353

14.檢視ocr.loc檔案

[root@ear1 ~]# more /etc/oracle/ocr.loc

#Device/file getting replaced by device +VOT

ocrconfig_loc=+OCR

ocrmirrorconfig_loc=+VOT

local_only=false

15.刪除舊ocr盤的ocr資訊（1節點）

/oracle/grid/crs_1/bin/ocrconfig -delete +OCR

16.2節點dismount掉舊ocr磁碟組（如果先dismount再跑上一步，會報ORA-15027: active use of diskgroup "OCR" precludes its dismount）

alter diskgroup OCR dismount;

17.1節點刪除磁碟組

drop diskgroup OCR including contents;

如果使用上述方法無法刪除ocrvote磁碟組，採用強制刪除的方法來完成（以下命令分別在一二節點執行）：

alter diskgroup OCRVOTE dismount force;

drop diskgroup OCRVOTE including contents;

18.確認vote遷移完成

方法一、

[grid@ear1 ~]$ ocrcheck

Status of Oracle Cluster Registry is as follows :

Version : 3

Total space (kbytes) : 262120

Used space (kbytes) : 2960

Available space (kbytes) : 259160

ID : 1650000229

Device/File Name : +VOT

Device/File integrity check succeeded

Device/File not configured

Cluster registry integrity check succeeded

Logical corruption check bypassed due to non-privileged user

方法二、

[grid@ear1 ~]$ crsctl query css votedisk

## STATE File Universal Id File Name Disk group

-- ----- ----------------- --------- ---------

1. ONLINE b0669b6b47b74f94bfe83061594de6d5 (/dev/asm-diskd) [VOT]

Located 1 voting disk(s).

方法三、

[grid@ear1 ~]$ more /etc/oracle/ocr.loc

#Device/file +OCR getting replaced by device +VOT

ocrconfig_loc=+VOT

local_only=false

oracle遷移OCR盤

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