10-13-2014
ibmtech is correct. The problem is that AIX does its bookkeeping about VGs, their LVs, their devices, etc. in the ODM (mostly CuAt and CuDv). You could (in theory) clean up this mismatch between hardware and configuration data by manipulating the ODM directly, but i strongly suggest not to do so. You would have to have in-depth knowledge about the organization of the various ODM tables and one little error might render your system in even worse shape than it is now.
My suggestion is to reboot the system. This will let "cfgmgr", which fills most ODM tables, run in Phase 1 and hopefully correct/cleanup a lot of the wrong entries. If still residues of the now missing disk remain (you should see them as "defined" in a "lsdev" listing) remove them with "rmdev" and "exportvg", as suggested by ibmtech. If the disk is a SAN device you might need to remove SAN-pseudodevices first (for instance, in EMC storage you have "hdiskpowerX" devices and each path is represented by a "hdiskX" device. You might have something similar, depending on the SAN you have).
I hope this helps.
bakunin
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LEARN ABOUT OPENSOLARIS
pseudo
pseudo(4) File Formats pseudo(4)
NAME
pseudo - configuration files for pseudo device drivers
DESCRIPTION
Pseudo devices are devices that are implemented entirely in software. Drivers for pseudo devices must provide driver configuration files to
inform the system of each pseudo device that should be created.
Configuration files for pseudo device drivers must identify the parent driver explicitly as pseudo, and must create an integer property
called instance which is unique to this entry in the configuration file.
Each entry in the configuration file creates a prototype devinfo node. Each node is assigned an instance number which is determined by the
value of the instance property. This property is only applicable to children of the pseudo parent, and is required since pseudo devices
have no hardware address from which to determine the instance number. See driver.conf(4) for further details of configuration file syntax.
EXAMPLES
Example 1 A sample configuration file.
Here is a configuration file called ramdisk.conf for a pseudo device driver that implements a RAM disk. This file creates two nodes called
"ramdisk". The first entry creates ramdisk node instance 0, and the second creates ramdisk node, instance 1, with the additional disk-size
property set to 512.
#
# Copyright (c) 1993, by Sun Microsystems, Inc.
#
#ident "@(#)ramdisk.conf 1.3 93/06/04 SMI"
name="ramdisk" parent="pseudo" instance=0;
name="ramdisk" parent="pseudo" instance=1 disk-size=512;
SEE ALSO
driver.conf(4), ddi_prop_op(9F)
Writing Device Drivers
SunOS 5.11 15 Jun 1993 pseudo(4)