Lenovo 8332 Troubleshooting and problem solving, Initial start-upproblems, Faulty cords, LEDs

Chapter 5. Troubleshooting and problem solving

The Secure Managed Client (SMC) - Storage Array includes an enclosure services processor and associated monitoring and control logic to enable it to diagnose problems within the enclosure’s power, cooling and drive systems.

The sensors for power and cooling conditions are housed within the PSUs and cooling fans. There is independent monitoring for each unit.

Initial start-up problems

The following problems may occur on initial start up:

Faulty cords

First check that you have wired up the subsystem correctly. Call your supplier for replacement if:

vCords are missing or damaged.

vPlugs are incorrect.

vCords are too short.

Alarm sounds and power up

See “Audible alarms” on page 26 for details.

Computer doesn't recognize the subsystem

1.Check that the interface cables from the SMC - Storage Array to the host computer are installed correctly.

2.Check that the LEDs on all installed drive carrier modules are illuminated (amber).

Note: Drive LEDs will not be lit during drive spin up.

3.Check that drive carrier modules have been correctly installed.

LEDs

A green LED is always used for good or positive indication. A flashing green/amber LED is used for non-critical conditions. With the exception of the drive carrier module LED, which is lit amber under Normal conditions (see “Drive carrier module faults” on page 30), a continuous red or amber LED indicates the presence of a critical fault within the module.

Power supply units

The power supply unit provides a single external bi-color LED to indicate the status of the power supply. When AC is applied to the PSU and standby voltages are available, the LED will blink green. The LED will be solid on green to indicate that all power outputs are available. The LED will be on solid amber to indicate that the power supply has failed (shut down due to over current, shut down due to over temperature, or a predictive failure).

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