客户新装AIX操作系统，需要将Netapp的存储映射到系统中，安装好Netapp MPIO后，发现多路径有问题，重装多路径软件后，系统识别lun正常，但是多了很多defined的信息，和 lsdev: 0514-521 Cannot find information in the predefined device         

configuration database for the customized device hdisk2 的报错信息

 解决思路如下：

删除磁盘时，报错：

#rmdev -Rdl hdisk12rmdev: 0514-521 Cannot find information in the predefined deviceconfiguration database for the customized device hdisk12.

　　这时我们需要删除ODM中的注册信息，才能够正常的删除磁盘

(root)#odmget -q name=hdisk19 CuAt OK(root)#odmget -q name=hdisk19 CuDvCuDv:name = "hdisk19"status = 1chgstatus = 2ddins = "scdisk"location = "20-58-3L-4,12"parent = "fcp0"connwhere = "4,12"PdDvLn = "disk/fcscsi/SYMM_BCV"(root)#odmdelete -q name=hdisk19 -o CuDv --need to delete1 objects deleted(root)#odmget -q value3=hdisk19 CuDvDrCuDvDr:resource = "devno"value1 = "21"value2 = "19"value3 = "hdisk19"(root)#odmdelete -q value3=hdisk19 -o CuDvDr --need to delete1 objects deleted(root)#ls -l /dev | grep hdisk19brw------- 1 root system 21, 19 Sep 14 2006 /dev/hdisk19crw------- 1 root system 21, 19 Sep 14 2006 /dev/rhdisk19(root)#rm /dev/hdisk19 /dev/rhdisk19

然后查看恢复正常

(root)#lsdev -Cc diskhdisk0 Available 10-60-00-10,0 16 Bit LVD SCSI Disk Drivehdisk1 Available 10-60-00-11,0 16 Bit LVD SCSI Disk Drivehdisk2 Available 10-60-00-12,0 16 Bit LVD SCSI Disk Drivehdisk3 Available 10-60-00-13,0 16 Bit LVD SCSI Disk Drivehdisk4 Available 10-60-00-14,0 16 Bit LVD SCSI Disk Drivehdisk5 Available 10-60-00-15,0 16 Bit LVD SCSI Disk Drive