Overview of the Tape Library | Power System |
Power System
The base unit has one standard power supply. A second supply can be ordered and installed to provide redundant power to the module components. Each supply should be plugged into a separate circuit and powered on to provide redundant power. If one supply fails, the second supply automatically provides power.
A single power switch on the back of the tape library is used to power on or power off all the power supplies in the rack:
•
•
The ON position is 1.
The OFF position is 0.
Cartridge Access Port
The cartridge access port (CAP) can be used to add cartridges to the tape library, or remove cartridges from the tape library without interrupting normal robotic operation. The CAP in the base module has one five slot magazine; the CAP in the drive expansion module has two five slot magazines.
Although the CAPs are not physically connected, they are logically connected. If any of the CAPs are open, the CAP LED on the keypad will be on, alerting the operator to take action to close the CAP. If all of the CAPs are closed, the CAP LED will be off.
You can use the keypad on the robotics unit to issue a command for the robot to unlock the CAP.
The CAP has two settings, ALLOW and PREVENT. ALLOW is the default setting after you power on or reset the tape library. The following table shows how these settings affect the CAPs.
CAP Condition | ALLOW | PREVENT |
All of the CAPs are | When you press the CAP |
closed. | button all of the CAPs in the |
| rack will open. |
| The library firmware turns on |
| the CAP LED. |
Any of the CAPs | When you press the CAP |
are open. | button, any CAP that is not |
| open in the rack will open. |
When you press the CAP button, the action is ignored and all the CAPs remain closed.
When you press the CAP button, the action is ignored and all of the CAPs remain in their individual current state of open or closed.
SL500 (M852x) Tape Library Installation and User’s