HP 3000 Manuals HP 3000 Manuals
To familiarize yourself with the computerThe Computer You should take some time to study the front of the computer. The following illustration shows the front panel of the computer.Computer Front Panel The front of the computer. All of the switches and indicators on the computer are located along the top, in the front of the computer as shown in the figure above. ON/OFF switch: Controls the DC power (not the AC power from the wall outlet) for the computer, the internal disk drive, and internal tape drive. Once the computer has started, you should turn this off only as part of the shutdown procedure.
CAUTION The OFF part of the front panel switch only disconnects the DC power from the inside of the computer cabinet. AC voltage is still present at the computer power supply. The AC power can be removed only by unplugging the power cord.
Run: (Operating State Indicator). This green light indicates that the computer is running normally. It can work in conjunction with the attention light. Attention: (Operating State Indicator). When the yellow indicator light is on something other than normal operation is occurring, but no fault has occurred. For example, testing, initializing or system shutdown. Fault: This orange light indicates that a fault exists in the computer. Remote Enabled: When this yellow light is on, it indicates that remote access through a modem port is enabled, allowing outside access to the computer. This is useful if remote support is desired. When this light is off, the remote access is disabled or denied. Tape DriveFigure 2-1. Tape Drive (3.5-inch DDS) Cassette Light and Drive Light: These lights indicate the states of the tape drive. See the Interpreting Tape Drive Indicator Status Lights section at the end of this chapter. Cassette Slot: Here you insert and retrieve the DDS tapes needed for storing information onto tapes. Cassette Unload Button: This button stops any tape operation, rewinds the tape and ejects the cassette from the tape drive. Interpreting Tape Drive Indicator Status Lights The various status states that you see displayed are shown in the following table. Table 2-1. HP 3.5-inch DDS Tape Drive ---------------------------------------------------------------------------------------------- | | | | | Cassette Light | Drive Light | Condition | | | | | ---------------------------------------------------------------------------------------------- | | | No Cassette States | | | ---------------------------------------------------------------------------------------------- | | | | | Off | Off | No cassette loaded, or power | | | | is off. | | | | | ---------------------------------------------------------------------------------------------- | | | | | Flash Yellow | Flash Yellow | Self-test in progress. | | | | | ---------------------------------------------------------------------------------------------- | | | | | On Green | Flash Green | No cassette; tape drive is | | | | active. | | | | | ---------------------------------------------------------------------------------------------- | | | Write Enable States | | | ---------------------------------------------------------------------------------------------- | | | | | On Green | On Green | Cassette loaded; tape drive | | | | online. | | | | | ---------------------------------------------------------------------------------------------- | | | | | On Green | Flash Green | Cassette loaded; tape drive | | | | active. | | | | | ---------------------------------------------------------------------------------------------- | | | | | Pulse Green | Pulse Green | Loading, unloading, or | | | | ejecting cassette. | | | | | ---------------------------------------------------------------------------------------------- | | | | | On Green | Off | Tape drive offline. | | | | | ---------------------------------------------------------------------------------------------- | | | Write Protect States | | | ---------------------------------------------------------------------------------------------- | | | | | On Yellow | On Green | Read-only cassette loaded; | | | | tape drive online. | | | | | ---------------------------------------------------------------------------------------------- | | | | | On Yellow | Flash Green | Read-only cassette loaded; | | | | tape drive active. | | | | | ---------------------------------------------------------------------------------------------- | | | | | Pulse Yellow | Pulse Green | Loading, unloading, or | | | | ejecting cassette. | | | | | ---------------------------------------------------------------------------------------------- | | | | | On Yellow | Off | Tape drive offline. | | | | | ---------------------------------------------------------------------------------------------- | | | Error States | | | ---------------------------------------------------------------------------------------------- | | | | | On Green | Pulse Green/Yellow | Caution1 (media warning). | | | | | ---------------------------------------------------------------------------------------------- | | | | | On Yellow | On Yellow | Moisture detected,2 or no | | | | termination resistors. | | | | | ---------------------------------------------------------------------------------------------- | | | | | Pulse Yellow | On Yellow | Fault3. | | | | | ---------------------------------------------------------------------------------------------- 1 This occurs during writes where an excessive number of read-after-write errors occur and persists until the cassette is unloaded. 2 The termination resistor problem occur only at power-on time, and the tape drive appears to have hung during self-test. 3 Indicates a failure of the DDS field replaceable unit.
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