StorageTek 9840 - Manual (Page 132)

Modes of Operation
5-16 Sixth Edition 95741
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Modes of Operation
The CSL has three distinct modes of operation ( Figure 5-13 ). They are:
• System Mode
• Automatic Mode
• Manual Mode
When power is applied to the CSL, illumination of one of the mode LEDs
indicates the CSL is receiving power and is ready for operation. The
operator
indicator may also light, indicating a required manual intervention.
System Mode
The system mode allows the host (enterprise only) to control the CSL. The CSL
stays in the system mode until changed from the operator panel or until the
drive sends a mode change command. The drive changes the mode of
operation at IPL to the mode set in the configuration on the operator panel.
Note: If the input bin is empty while the CSL is in System mode, the input
bin must be replenished, and the Start switch must be pressed to
restart the CSL operation.
If a Load Display command has been sent to the CSL from the
host, a cartridge will be loaded.
If a Load Display command has not been sent to the CSL from
the host, a cartridge will not load until a Load Display command
is received from the host to mount a cartridge.
Figure 5-13. CSL Modes of Operation
1. system indicator
2. automatic indicator
3. manual indicator
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