ocr备份与管理

1.1检查OCR的状态

[root@rac1 bin]# ./ocrcheck
Status of Oracle Cluster Registry is as follows :
         Version                  :          3
         Total space (kbytes)     :     262120
         Used space (kbytes)      :       2884
         Available space (kbytes) :     259236
         ID                       :  278609533
         Device/File Name         :   +OCRVOTE
                                    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 succeeded

1.2 备份OCR
手动备份

[root@rac1 ~]# cd /oracle/grid/crs_1/bin/
[root@rac1 bin]# ./ocrconfig -manualbackup
rac1     2018/08/01 19:55:47     /oracle/grid/crs_1/cdata/rac-cluster/backup_20180801_195547.ocr

查看有效的备份

[root@rac1 bin]# ./ocrconfig -showbackup
PROT-24: Auto backups for the Oracle Cluster Registry are not available
 
rac1     2018/08/01 19:55:47     /oracle/grid/crs_1/cdata/rac-cluster/backup_20180801_195547.ocr

19c ocr备份文件状态发生了变化，备份文件放置于ocr磁盘中

[grid@rac19cn1 bin]$  ./ocrconfig -showbackup

rac19cn2     2021/06/01 16:42:24     +OCRVT:/rac19cn-cluster/OCRBACKUP/backup00.ocr.263.1074098507     724960844
rac19cn2     2021/06/01 12:41:44     +OCRVT:/rac19cn-cluster/OCRBACKUP/backup01.ocr.261.1074084067     724960844
rac19cn2     2021/06/01 08:41:03     +OCRVT:/rac19cn-cluster/OCRBACKUP/backup02.ocr.264.1074069653     724960844
rac19cn2     2021/05/30 20:39:01     +OCRVT:/rac19cn-cluster/OCRBACKUP/day.ocr.262.1073939943     724960844
rac19cn2     2021/05/19 12:00:02     +OCRVT:/rac19cn-cluster/OCRBACKUP/week.ocr.258.1072958407     724960844

1.3 VOTING Disk
从11g R2开始，Voting Disk的备份会包含在ocr的备份中。
查看voting 盘状态

[root@rac1 bin]# ./crsctl query css votedisk
##  STATE    File Universal Id                File Name Disk group
--  -----    -----------------                --------- ---------
 1. ONLINE   1771cce577594f20bf854bb1f1efd667 (/dev/asm-diskb) [OCRVOTE]
Located 1 voting disk(s).