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 hdisk12 rmdev: 0514-521 Cannot find information in the predefined device configuration 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 CuDv CuDv: name = "hdisk19" status = 1 chgstatus = 2 ddins = "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 delete 1 objects deleted (root)#odmget -q value3=hdisk19 CuDvDr CuDvDr: resource = "devno" value1 = "21" value2 = "19" value3 = "hdisk19" (root)#odmdelete -q value3=hdisk19 -o CuDvDr --need to delete 1 objects deleted (root)#ls -l /dev | grep hdisk19 brw------- 1 root system 21, 19 Sep 14 2006 /dev/hdisk19 crw------- 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 disk hdisk0 Available 10-60-00-10,0 16 Bit LVD SCSI Disk Drive hdisk1 Available 10-60-00-11,0 16 Bit LVD SCSI Disk Drive hdisk2 Available 10-60-00-12,0 16 Bit LVD SCSI Disk Drive hdisk3 Available 10-60-00-13,0 16 Bit LVD SCSI Disk Drive hdisk4 Available 10-60-00-14,0 16 Bit LVD SCSI Disk Drive hdisk5 Available 10-60-00-15,0 16 Bit LVD SCSI Disk Drive