之前在客户处使用CSPOC来扩展FS的时候失败过，具体错误信息忘记了；现在想起来这或许是HACMP5.4.0.1的一个BUG，当使用CSPOC在线向共享VG中添加FS和扩展FS时会导致该VG瞬间无法访问，并把资源组切换至另一节点。
解决办法有2：
1.扩共享VGLVFS时使用传统方式，即单节点完成后，进行IMPORT/EXPORT、同步
2.安装相关FIX：
IY90392============================================
APAR statusClosed as program error.
Error descriptionThe customer changed a filesystem size through CSPOC andthat failed, but it also resulted in moving the resourcegroup to the other node.
Local fix
Problem summary***************************************************************** USERS AFFECTED:* Users of HACMP for AIX R540 performing C-SPOC operations with* the cluster.es.cspoc.cmds and cluster.es.cspoc.rte filesets* below the level of 5.4.0.2.***************************************************************** PROBLEM DESCRIPTION:* C-SPOC operations on shared volume groups can result in the* volume group becoming inaccessible.***************************************************************** RECOMMENDATION:* Install APAR IY90392.****************************************************************
Problem conclusionCorrect code added in 551404 to update timestamp to do sowithout setting or leaving a reserve on the volume group
Temporary fix********** HIPER **********
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