IBM 4690 manual Safety, Disconnecting, Connecting

Models: 4690

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Safety

vThe device has a hardware problem.

The ªReliability: Tape drive recovered from xxx soft errorsº message displayed by the Streaming Tape Drive Utility is a normal message unless the number indicated by xxx is high. The number can exceed several hundred if the tape is full (contains 4 GB of data). To determine if the number is high, divide the number into the number of MB of data on the tape. Within the hardware speci®cation, you can have up to 10 soft errors per 1 MB of data.

If the Streaming Tape Drive Utility logs a W660 B4/S055/E010 message, it is used for statistics and does not necessarily indicate an error.

If the Streaming Tape Drive Utility abends with read errors or if the number of soft errors becomes higher than normal, trying cleaning the tape drive. See ªCleaning the Tape Headº on page 23 for instructions.

Safety

Electrical current from power, telephone, and communication cables is hazardous. To avoid shock hazard, all cables should be disconnected before the store controller cover is opened and connected only after the store controller cover is closed. The power cord must be used with a properly grounded outlet.

Disconnecting

To disconnect your equipment:

vTurn all equipment OFF.

vFirst, remove power cord from outlet. (In the United Kingdom, by law, the power cord must be disconnected after the telephone line cable.)

vRemove signal cables from receptacles.

vRemove all cables from devices.

Connecting

To connect your equipment:

vTurn all equipment OFF.

vAttach all cables to devices. (In the United Kingdom, by law, the telephone cable must be connected after the power cord.)

vAttach signal cables to receptacles.

vAttach power cord to outlet.

vTurn equipment ON.

Chapter 5. Maintenance and Troubleshooting 25

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IBM 4690 manual Safety, Disconnecting, Connecting