Lenovo Storage Array 8332 User Manual download pdf (Page 38)

Table 15. Thermal cooling (continued)

Symptom Cause Action

1. Front operator's panel unit fault

LED amber.

2. An amber LED is lit on one or

more PSUs.

If the internal temperature

measured in the airflow

through the enclosure

exceeds a pre-set threshold,

a thermal alarm sound.

1. Check to ensure that local

ambient environment temperature

is below the upper 35°C (95°F)

specification.

2. Check the installation for any

airflow restrictions at either the

front or rear of the enclosure. A

minimum gap of 2.5 cm (1 inch)

at the front and 5 cm (2 inches)

mm at the rear is recommended.

3. Check for restrictions due to dust

build up; clean as appropriate.

4. Check for excessive re-circulation

of heated air from rear to front.

Use in a fully enclosed rack

installation is not recommended.

5. If possible, turn off the enclosure

and investigate the problem

before continuing.

Drive carrier module faults

Each Drive Carrier module has two LEDs: an upper (green) LED and a lower

(amber) LED.

v Under normal operation, the green LED is on and will flicker as the drive

operates

v Under normal operation, the amber LED will be:

– Off if there is no drive present

– Off as the drive operates

– On if a drive fault is present

Dealing with hardware faults

Ensure that you have obtained a replacement module of the same type before

removing any faulty module.

v If the subsystem is powered up and you remove any module, replace it

immediately. If the subsystem is used with modules or module blanks missing

for more than a few minutes, the enclosure can overheat, causing power failure

and data loss. Such use will invalidate the warranty.

v Replace a faulty drive with a drive of the same type and equal or greater

capacity.

v Refer to your vendor-supplied documentation when using storage software for

handling drive-related hardware faults.

v All drive bays must be installed with a drive carrier module in order to

maintain a balanced airflow.

v All the supplied plug-in power supply units, electronics modules and blank

modules must be in place for the air to flow correctly around the cabinet

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