DLT7000 Status Light Action During Power-On Self Test and Operation
When power is applied to the DLT7000 tape drive, it performs POST.
POST completes in about 15 seconds and the DL~000 tape drive responds normally to
all commands; however, it might take longer for the media to become ready.
After a bus reset, the tape drive responds within a bus selection time-out period.
The sequence of events for POST is:
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Condition of the Tape Drive | Condition of the Status Lights on the Drive and
| Actions Required
---------------------------------------------------|-----------------------------------------------------------
No cartridge is present, and the handle is closed.| 1. The Tape in Use light turns off.
| 2. The Operate Handle light turns on.
| 3. The drive unlatches the handle.
| 4. The drive beeps momentarily. The handle can be
| opened and a cartridge inserted.
---------------------------------------------------|-----------------------------------------------------------
A cartridge is present and the handle is closed. | The drive loads the cartridge. When the Tape in Use
| light stops blinking and stays on, the tape's actual
| density light comes on. For example, if the actual tape
| density is 20.0 GB, then the light turns on next to the
| 20.0 label. When the Density Override light blinks, you
| can select a density. The drive is ready for use.
|
| Note: The manual Density Override function is not
| normally used in a library application; typically,
| the host system controls this function.
---------------------------------------------------|-----------------------------------------------------------
A cartridge is present, but the handle is open | The Tape in Use light turns off. The Operate Handle
(not recommended) | light flashes. When the handle is lowered, the
| cartridge loads.
---------------------------------------------------|-----------------------------------------------------------
The tape drive detects an error condition. | The top or bottom lights blink repeatedly. Try to unload
| the tape and reinitialize the drive by pressing the
| Unload button, or turn the power to the library off and
| then on again. The top or bottom lights stop blinking
| and the drive tries to reinitialize. The lights turn on
| steady again and, if the test succeeds, turn off.
---------------------------------------------------|-----------------------------------------------------------
The tape drive is powered on with the handle open.| The Operate Handle light flashes. Close the handle
| and wait for the light to become steady.
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