5190/5194 Modular Tape Subsystem Manual

Configuring the Modular Tape Subsystem
5190/5194 Modular Tape Subsystem Manual—426878-002
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Configuring the Modular Tape Subsystem Online
Using COUP
Example 5: Stopping and Removing a Tape Drive From the
System
To stop and remove a tape drive from the system, use the PUP DOWN command to
bring down the drive. Then use COUP to stop and remove it from the system. The
COUP STOP command stops the I/O process for that drive. You must also stop any
processes communicating with that drive.
After the STOP command stops the I/O process for that drive, a Peripheral Utility
Program (PUP) LISTDEV command on the device will show that it is unknown to the
system.
The STOP command also marks the drive as stopped in the configuration file; the drive
does not start after the next processor reload.
You can use the COUP DELETE command to remove the definition of the drive from
the configuration file. When you remove a drive from the system, you also need to
remove its controller if there are no other devices attached to the controller. If you try
to delete the controller while it still has a device connected to it, COUP issues an error
message.
This example stops and removes the tape drive $TAPE1 and controller TAPEA.
12) STOP $TAPE1
*** WARNING[ COUP116 ] : The following devices will be stopped:
$TAPE1
Ok to proceed? : Y
Device $TAPE1 has been successfully stopped.
13) DELETE $TAPE1
14) DELETE CONTROLLER TAPEA