11g R2 Deinstall of Grid Infrastructure Cluster
从11gR2开始，Grid Infrastructure Cluster 可以用脚本卸载了，很方便，卸载的也很干净，给安装rac的同学节约了很多宝贵的时间。so cool .
Deinstall of Grid Infrastructure Cluster:
Case 1: "root.sh" never ran on this cluster, then as grid user, execute $GRID_HOME/deinstall/deinstall
Case 2: "root.sh" already ran, then follow the step below - please keep in mind that you will need wait till each step finishes successfully before move to next one:（以下几个脚本都以root用户执行）
Step 1: As root, run "$GRID_HOME/crs/install/rootcrs.pl -verbose -deconfig -force" on all node, except the last one.
Step 2: As root, run "$GRID_HOME/crs/install/rootcrs.pl -verbose -deconfig -force -lastnode" on last node. This command will zero out OCR and VD disk also.
Step 3: As grid user, run "$GRID_HOME/deinstall/deinstall" on any node.
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作者: Seven
原文链接: http://blog.csdn.net/sunjiapeng/article/details/8433554
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