硬盘突然变成Defined状态

问题描述：

1、一个datavg，忘记varyoff datavg了，直接exportvg datavg了，然后lspv 发现盘都没了，然后lsdev -Cc disk显示：

lsdev -Cc disk
hdisk0  Available 10-60-00-0,0 Other SCSI Disk Drive
hdisk1  Available 10-88-00-6,0 Other SCSI Disk Drive
hdisk2  Available 10-88-00-6,1 Other SCSI Disk Drive
hdisk3  Defined   20-60-02     Other FC SCSI Disk Drive
hdisk4  Defined   20-60-02     Other FC SCSI Disk Drive
hdisk6  Defined   20-60-02     Other FC SCSI Disk Drive
hdisk7  Defined   20-60-02     Other FC SCSI Disk Drive
hdisk8  Defined   20-60-02     Other FC SCSI Disk Drive
hdisk9  Defined   20-60-02     Other FC SCSI Disk Drive
hdisk10 Defined   20-60-02     Other FC SCSI Disk Drive
hdisk11 Defined   20-60-02     Other FC SCSI Disk Drive
hdisk12 Defined   20-60-02     Other FC SCSI Disk Drive
hdisk13 Defined   20-60-02     Other FC SCSI Disk Drive
hdisk14 Defined   20-60-02     Other FC SCSI Disk Drive
hdisk15 Defined   20-60-02     Other FC SCSI Disk Drive
hdisk16 Defined   20-60-02     Other FC SCSI Disk Drive
hdisk17 Available 20-60-02     Other FC SCSI Disk Drive
hdisk18 Available 20-60-02     Other FC SCSI Disk Drive
hdisk19 Available 20-60-02     Other FC SCSI Disk Drive
hdisk20 Defined   20-60-02     Other FC SCSI Disk Drive
hdisk21 Defined   20-60-02     Other FC SCSI Disk Drive
hdisk22 Defined   20-60-02     Other FC SCSI Disk Drive
2、执行cfgmgr报：
cfgmgr
Method error (/usr/lib/methods/cfgecpa -l ppa1 ):
        0514-043 Error getting or assigning a minor number.
3、把rmdev -hl hdisk5 删掉，然后chdev -l hdisk5 -a pv=yes 出现如下错误：
chdev -l hdisk5 -a pv=yes
chdev: 0514-519 The following device was not found in the customized
        device configuration database:
        hdisk5

现在没思路了，请指教该从那些方面下手，我的目的是把datavg找回来！谢谢！