5190/5194 Modular Tape Subsystem Manual

Operating the Cartridge Tape Drive and ACL

5190/5194 Modular Tape Subsystem Manual—426878-002

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Unlocking the ACL Door When Power Is Removed

During normal operation, the ACL magazine door locks when a cartridge tape is loaded

into the drive. The door cannot be opened unless you unload the cartridge and reset

the drive using the RESET button.

If power is removed while the DOOR LOCK status indicator LED is lit, the ACL

magazine door remains locked to protect the data stored on cartridges in the drive and

the cartridge magazine. To unlock the door, reapply power to the module and unload

the tape. If power cannot be reapplied, use the following procedure to defeat the door

lock mechanism and remove the cartridge magazine.

1. Make sure that the AC power switch at the rear of the tape drive CRU is set to the

OFF (0) position.

2. Remove the module bezel by grasping the side handles and pulling the bezel

straight off the face of the module.

3. Use a small slotted screwdriver to press down on the door release lever, which is

located on the right-hand side of the ACL near the magazine door release button.

An opening in the module housing provides access to the door release lever (see

Figure 4-7).

Caution. After removing the cartridge magazine from an ACL with the power off, do not

attempt to remove a cartridge that is loaded in the drive. This can be done only by a trained

service provider.