Oracle RAC 迁移替换 OCR 盘

案例背景：因安装集群时候使用的 OCR 磁盘组存储有问题，需要迁移到新的磁盘组。 涉及 文件有： 1）OCR 文件 2）VOTING 文件 3）ASM 实例的 spfile 文件 旧 OCR 磁盘组名称：+OCR 新 OCR 磁盘组名称：+GRID 1、迁移 OCR 文件 grid@pgylinux01-or@+ASM1> ocrcheck Status of Oracle Cluster Registry is as follows :          Version                  :          3          Total space (kbytes)     :     262120          Used space (kbytes)      :       3604          Available space (kbytes) :     258516          ID                       : 1076986448          Device/File Name         :       +ocr                                     Device/File integrity check succeeded                                     Device/File not configured                                     Device/File not configured                                     Device/File not configured                                     Device/File not configured          Cluster registry integrity check succeeded          Logical corruption check bypassed due to non-privileged user 此时 OCR 文件在 OCR 磁盘组中 迁移 OCR 文件有两种方式： 方法一：添加一个新位置，删除旧位置 [root@pgylinux01-or bin]# /oracle/grid/11.2.0.4/bin/ocrconfig -add +grid # 查看OCR 盘路径 grid@pgylinux01-or@+ASM1>ocrcheck Status of Oracle Cluster Registry is as follows :          Version                  :          3          Total space (kbytes)     :     262120          Used space (kbytes)      :       3600          Available space (kbytes) :     258520          ID                       : 1076986448          Device/File Name         :       +ocr                                     Device/File integrity check succeeded          Device/File Name         :      +grid                                     Device/File integrity check succeeded                                     Device/File not configured                                     Device/File not configured                                     Device/File not configured          Cluster registry integrity check succeeded          Logical corruption check bypassed due to non-privileged user 也可以通过查看/etc/oracle/ocr.loc 文件来确认 OCR 文件路径 oracle@pgylinux01-or@+ASM1> cat /etc/oracle/ocr.loc #Device/file  getting replaced by device +grid ocrconfig_loc=+ocr ocrmirrorconfig_loc=+grid 这时候 OCR 文件在 +OCR 和 +GRID 磁盘组各存了一份，可以删除 +OCR 盘里面的那一份 [root@pgylinux01-or bin]# /oracle/grid/11.2.0.4/bin/ocrconfig -delete +ocr 方法二：使用 replace 方式直接替换 [root@pgylinux01-or bin]# /oracle/grid/11.2.0.4/bin/ocrconfig -replace +ocr -replacement +grid PROT-28: Cannot delete or replace the only configured Oracle Cluster Registry location 提示说 当前只有一份 OCR 文件，不能做删除和替换操作，需要先添加一份OCR文件，再做替换，添加到哪个盘都可以，这里直接使用 +GRID 盘。 [root@pgylinux01-or bin]# /oracle/grid/11.2.0.4/bin/ocrconfig -add +grid [root@pgylinux01-or bin]# /oracle/grid/11.2.0.4/bin/ocrconfig -replace +ocr -replacement +grid PROT-29: The Oracle Cluster Registry location is already configured 替换完成，OCR 文件已经转移到 +GRID 磁盘组中。 2、迁移 VOTING 文件 # 查看当前 VOTING 文件路径 grid@pgylinux01-or@+ASM1> crsctl query css votedisk ##  STATE    File Universal Id                File Name Disk group --  -----    -----------------                --------- ---------  1. ONLINE   0de070fb41ae4f30bfd17c9dc7668f01 (ORCL:DATA_01) [OCR] Located 1 voting disk(s). # 替换 VOTING 文件到 +GRID 磁盘组 grid@pgylinux01-or@+ASM1> crsctl replace votedisk +grid Successful addition of voting disk 53e1a6d5ebf84f41bf22d54601a9028f. Successful deletion of voting disk 0de070fb41ae4f30bfd17c9dc7668f01. Successfully replaced voting disk group with +grid. CRS-4266: Voting file(s) successfully replaced grid@pgylinux01-or@+ASM1>crsctl query css votedisk ##  STATE    File Universal Id                File Name Disk group --  -----    -----------------                --------- ---------  1. ONLINE   53e1a6d5ebf84f41bf22d54601a9028f (ORCL:DATA_03) [GRID] Located 1 voting disk(s). 替换完成，VOTING 文件已经转移到 +GRID 磁盘组中。 3、重建 ASM 实例的 spfile 文件 SQL> CREATE PFILE='/home/grid/asm_pfile.ora' from spfile; File created. SQL> CREATE SPFILE='+GRID' FROM PFILE='/home/grid/asm_pfile.ora'; File created. 所有文件迁移完成，重启集群完成迁移。旧的 OCR 磁盘组不再需要，可以删除。