Tableau TX1, User Manual

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Troubleshooting Common Problems
This section covers the following troubleshooting issues and solutions:
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Power supply issues
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Problems with disk detection
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Replacing the backup battery for the real-time clock
Power Supply Issues
The power supply provided with the TX1 is capable of powering the TX1 and nearly all
combinations of drives. The TX1 also employs staggered power sequencing for the source and
destination drives. With staggered sequencing, power is first provided to one drive as it spins
up, then to the second drive as it spins up, and so on. This feature prevents large current
demand spikes at initial power-up, which helps to ensure reliable operation even with a heavily
loaded system. Due to staggered power sequencing, it is normal to hear the source and
destination drives spin up separately.
During power-on initialization and self-test, the TX1 checks the output voltages of the power
supply. If the voltage is below the minimum specification, the TX1 displays a warning.
If you are having difficulty turning the TX1 on, check the status of the DC power LED on the TP6
power supply connector to ensure that it is on, which indicates the TX1 is connected to power.
Problems with Drive Detection
When using a product like the TX1, the most common problem you may encounter is a failure
to achieve drive detection. Most drive detection problems are the result of improper cabling.
The following table lists the most common drive detection problems and corrective actions.
Problem Corrective Action
General
drive
detection
Check the power and signal cable connections between the TX1 and the drive to
ensure that all connectors are properly seated. If the TX1 still does not detect the
drive, cycle the power on the TX1 to attempt to detect the drive during a fresh
start-up sequence.
120 Tableau TX1 User Guide Version 2.0