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CRS中常用的OCR和Votedisk的操作指令小結

 檢視votedisk的存儲資訊:

erpdb1$[/home/oracle]crsctl query css votedisk

 0.     0    /dev/jcerp_vote_disk3

 1.     0    /dev/jcerp_vote_disk1

 2.     0    /dev/jcerp_vote_disk2

located 3 votedisk(s).

備份votedisk: dd if=/dev/raw/votediskcopied of=/dev/raw/raw1

恢複votedisk: dd if=/dev/raw/raw1 of=/dev/raw/votediskcopied

檢視ocrs的資訊:

erpdb1$[/home/oracle]ocrcheck

Status of Oracle Cluster Registry is as follows :

         Version                  :          2

         Total space (kbytes)     :     261916

         Used space (kbytes)      :       4368

         Available space (kbytes) :     257548

         ID                       : 1501608293

         Device/File Name         : /dev/jcerp_ocr_disk1

                                    Device/File integrity check succeeded

         Device/File Name         : /dev/jcerp_ocr_disk2

         Cluster registry integrity check succeeded

導出導入

可以用raw的指令來備份和恢複,不過ocrconfig提供了專門的指令來導出和導入還提供了鏡像的方法

OCR手動導出:ocrconfig -export /tmp/ocr_bak

OCR手動導入:ocrconfig -import /tmp/ocr_bak

恢複OCR ocrconfig -restore /opt/product/10.2.0.1/crs/cdata/crs/backup01.ocr

添加OCR鏡像盤:

建立用于鏡像OCR的RAW裝置,比如為:/dev/raw/ocrcopied

用ocrconfig –export 導出OCR的資訊

編輯/etc/oracle/ocr.loc檔案,添加ocrmirrorconfig_loc行

$ cat ocr.loc

ocrconfig_loc=/dev/raw/raw2

ocrmirrorconfig_loc=/dev/raw/ocrcopied

local_only=FALSE

用ocrconfig –import 導入OCR的資訊