HP B6960-90078 Cannot Use Devices After Upgrading to Data, Protector A.05.10, Command Syntax, 578

	Troubleshooting
	Troubleshooting Devices and Media
Action	Export the medium from the IDB and restart the failed session using a
	different medium.
	Cannot Use Devices After Upgrading to Data
	Protector A.05.10
Problem	After upgrading to Data Protector A.05.10, you cannot use devices that
	were configured as different device types in previous releases. For
	example, you cannot use 9940 devices that were configured as 9840
	devices, or SuperDLT devices that were configured as DLT devices. The
	following error occurs:
	[Critical] From: BMA@ukulele.company.com "SDLT" Time:
	2/22/2003 5:12:34 PM
	[90:43] /dev/rmt/1m
	Invalid physical device type => aborting
Action	Manually reconfigure these devices using the mchange command, located
	on the Cell Manager in the following directories:
	• On HP-UX: /opt/omni/sbin/utilns/HPUX
	•	On Solaris: /opt/omni/sbin/utilns/SOL
	•	On Windows: <Data_Protector_home>\bin\utilns\NT
Command Syntax	mchange -pool PoolName -newtype NewMediaClass
	where:
	PoolName is the name of the media pool with devices that are currently
	configured and should be reconfigured (for example, Default DLT or
	Default T9840).
	NewMediaClass is the new media type of the devices, for example, T9940
	for 9940 devices and SuperDLT for SuperDLT device.
Example	mchange -pool "Default DLT" -newtype "SuperDLT"
	The command changes media types for all media, drives and libraries
	that use the defined media pool. After you have executed this command
	for each device you wanted to change, move the media associated with
	the reconfigured devices from the current media pool to the media pool
	corresponding to these media.

578 Chapter 12