Oracle RAC backup and recovery Voting Disks

Oracle RAC backup and recovery Voting Disks Oracle RAC add and delete Voting Disks reference: http://www.bkjia.com/database/201303/195591.html Oracle RAC does not need to back up and recover the Voting Disks www.2cto.com Voting Disks every day. Generally, backup is required in the following situations: ①: After Clusterware is installed. ②: After adding and deleting nodes in the cluster. ③: After the Voting Disk add or delete operation is executed. Example of backing up voting Disk: Environment: [plain] [oracle @ node2 ~] $ Uname-a Linux node2 2.6.18-164. el5 #1 SMP Tue Aug 18 15:51:54 EDT 2009 i686 i686 i386 GNU/Linux [plain] SQL> select * from v $ version; BANNER implements Oracle Database 10g Enterprise Edition Release 10.2.0.1.0-Prod PL/SQL Release 10.2.0.1.0-Production CORE 10.2.0.1.0 Production TNS for Linux: Version 10.2.0.1.0-Production NLSRTL Version 10.2.0.1.0-Production 1. view the current Voting Disks [plain] [oracle @ node1 ~] $ Crsctl query css votedisk 0. 0/dev/raw/raw2 located 1 votedisk (s). 2. Back up Voting Disk (with root) [plain] [root @ node1 ~] # Dd if =/dev/raw/raw2 of =/home/oracle/backup/votingdisk. bak 208864 + 0 records in 208864 + 0 records out 106938368 bytes (107 MB) copied, 150.378 seconds, 711 kB/s 3. check the backup [plain] [root @ node1 backup] # ll total 104540-rw-r -- 1 root 106938368 Mar 13 votingdisk. bak can use this backup file for recovery if the content of Voting Disk has not changed. Example of restoring Voting Disk: 1. stop crs (./crsctl stop crs), destroy data simulation, and Voting Disk is damaged. [Plain] [root @ node1 bin] # dd if =/dev/urandom of =/dev/raw/raw2 154419 + 0 records in 154419 + 0 records out 79062528 bytes (79 MB) copied, 196.121 seconds, 403 kB/s damaged. /crsctl start crs cannot start crs. 2. restore Voting Disk [plain] [root @ node1 bin] # dd if =/home/oracle/backup/votingdisk. bak of =/dev/raw/raw2 208864 + 0 records in 208864 + 0 records out 106938368 bytes (107 MB) copied, 138.541 seconds, 772 kB/s for recovery. /crsctl start crs starts crs normally