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In mainframe environments, set the tape drive offline for all host paths to the tape
drive by using one of the following Vary commands:
■
■
In open systems environments, do one of the following:
■
■
Click Online.
2.
If the tape drive is online, the button is blue. You click the blue button to change it
to gray, indicating that the tape drive is offline.
Rebuilding the MIR
This section discusses the rebuilding of the MIR. This is an abnormal situation as the
tape drive automatically builds and changes the MIR as the tape is used. The rebuild
process is only used when the MIR on a tape becomes damaged or corrupted.
To Rebuild the MIR (Operator Panel)
This process rebuilds an MIR from the rack mount drive tray operator panel.
Set the drive to the offline state.
1.
See
Press the Menu button until Drv Menu? appears in the display window.
2.
Press the Select button (Yes) once.
3.
The display window now shows the beginning of drive utilities submenus.
Press the Menu button until Build MIR appears.
4.
Press the Select button to begin the MIR rebuilding process.
5.
Ld Cust Tp appears in the display window.
MVS: V <address> offline
VM: Vary off, <address>
Stop the job that is using that tape drive.
In a multi-host setting, stop any job that is using the tape drive and then, if
there is a switch unit in use, block the port in that switch to the tape drive.
You can also set the drive offline by selecting Set Offline
Note:
from the Drive Operations menu.
This can be a lengthy process, especially on a fully written
Note:
cartridge. Rebuilding the MIR for a full data cartridge could take 90
minutes (T10000A formatted cartridge) or longer.
Note:
Make sure the write protect switch on the data cartridge is
set to the unlocked position.
"To Place the Drive Offline (Operator Panel)"
The drive unloads any loaded cartridge. Remove the
Note:
cartridge.
Menu System Tasks
on page 3-12 as needed.
Operator Tasks 3-13
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