安装Oracle 11g集群软件不能自动识别磁盘
如果在AIX系统中曾经安装Oracle 11g未成功，进行第二次安装时，Oracle 11gGrid安装软件不能自动识别出磁盘，因为磁盘已经写进hea
如果在AIX系统中曾经安装Oracle 11g未成功，，进行第二次安装时，Oracle 11gGrid安装软件不能自动识别出磁盘，因为磁盘已经写进heap数据，需要进行清理数据，才能自动识别。
解决：
查看系统存储：lspv
比如有一个磁盘是/dev/hdisk5
用root用户只需: dd if=/dev/zero f=/dev/hdisk5 bs=81920
执行中可不用执行完毕而中断命令，重新进行Oracle集群软件的安装可自动识别。
备注：
AIX系统显示磁盘存储
> lspv
hdisk0 000e7fede0363431 rootvg active
删除磁盘：
rmdev -dl hdisk3
挂载磁盘：
cfgmgr -l fscsi2
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