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v The device has a hardware problem.
The “Reliability: Tape drive recovered from xxx soft errors” 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 specification, 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 “Cleaning
the Tape Head” 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:
v Turn all equipment OFF.
v First, remove power cord from outlet. (In the United Kingdom, by law, the
power cord must be disconnected after the telephone line cable.)
v Remove signal cables from receptacles.
v Remove all cables from devices.
Connecting
To connect your equipment:
v Turn all equipment OFF.
v Attach all cables to devices. (In the United Kingdom, by law, the telephone cable
must be connected after the power cord.)
v Attach signal cables to receptacles.
v Attach power cord to outlet.
v Turn equipment ON.
Chapter 5. Maintenance and Troubleshooting 25