SAN Manager LM for HP-UX Release Notes

A Device Cannot be Unassigned from an HP-UX Host 43
Troubleshooting
A Device Cannot be Unassigned from an HP-UX Host
Symptom Cause/Solution
When unassigning a
device from an HP-UX
host, the administration
application notifies you that
the device cannot be
unassigned.
The device contains a mounted file system that is in use. Stop
any processes that are using the file system, unmount the device,
then unassign the device with the SAN Manager LM administration
application.
The device is configured to be used with third-party storage
management software such as LVM or VERITAS Volume
Manager. SAN Manager LM cannot notify a third-party storage
management application that a particular device needs to be
removed from its configuration. Before unassigning device(s) in
SAN Manager LM, manually remove them from the control of third-
party storage management software.
The device is in use by an application that accesses it directly.
SAN Manager LM cannot determine which application is using
the disk in question, or how to stop the application’s access
without interrupting what may be a critical process. Before
unassigning this type of device, close the program that is using it
and unmount the device.