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74 Troubleshooting Your Enclosure
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CAUTION: Only trained service technicians are authorized to remove the
enclosure cover and access any of the components inside the enclosure. Before
performing any procedure, see your Product Information Guide for complete
information about safety precautions, working inside the enclosure and protecting
against electrostatic discharge.
1
Check that at least two
physical disk
s are present in the enclosure. A
minimum of two
physical disk
s must be installed. If they are not, install
the minimum number of
physical disk
s. If the problem persists, go to
step 3.
2
Referring to the Recovery Guru procedure of the MD Storage Manager,
locate the faulty power supply and note the status of the LEDs.
If the AC Power LED is not lit, troubleshoot the power cord and power
source into which the power supply is plugged.
• Use a known good power source (outlet).
• Use a known good power cord.
If the DC power LED is not lit, verify that the power switch is turned on. If
the power switch is turned on, continue to step 3.
If the power supply's fault indicator is lit, continue to step 3.
3
Ensure that the power supply is properly installed by removing and re-
installing it. See "Removing and Installing the Power Supply/Cooling Fan
Module" on page 64.
NOTE: After installing a power supply, allow several seconds for the
enclosure to recognize the power supply and determine if it is working
properly.
NOTICE: Power supply/cooling fan modules are hot-pluggable. The
enclosure can operate on a single functioning power supply; however, both
modules must be installed to ensure proper cooling. A single power
supply/cooling fan module can be removed from the enclosure for up to
5 minutes, provided the other module is functioning properly. After 5 minutes,
the enclosure will overheat and may cause an automatic thermal shutdown.
4
If the problem is resolved, skip the rest of this procedure.
If the problem persists, remove the faulty power supply. See
"Removing and Installing the Power Supply/Cooling Fan Module" on
page 64.