IBM 5786, Процедуры снятия и замены

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- The disk drive is faulty
- Appears on an empty slot where a drive is to be installed
– Blinking - The disk drive is rebuilding
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Disk drive identify (green) - The light pipe for this LED is located on the lower left side of the
disk drive and is used for the identify function by disk-drive enclosures that are connected to
an IBM System i systems.
Power supply LEDS
This disk drive enclosure contains two power supplies and they are located on the back lower
third portion of the chassis. The power supply located on the left of the chassis is power supply
1. The power supply located on the right side of the chassis is power supply 2. Each power
supply contains four LEDs located on the lower right side. The following list identifies and
defines each of the power supply LEDs.
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Cage fault LED - This is an amber colored LED and is labeled C/F. The power supply cage
fault LED provides the same information as the cage fault indicator located on the front of the
enclosure.
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AC good LED - This a green colored LED and is labeled I/G
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DC power good LED - This green colored LED is labeled D/G. Indicates that the enclosure is
getting good dc power. It is on when +1.8 V, +3.3 V, +5 V, and +12 V are good. It goes off
when any of the mentioned voltages are not good.
v Power supply fault LED - This amber colored LED is labeled FLT and comes on solid when
there is a fault with the power supply.
The following table explains the fault condition or power supply state indicated by each power
supply LED:
Table 1. Power supply fault condition
LED name
Normal operation
state Input not present
state
Input present state Fault state
Cage fault LED OFF OFF ON
AC good LED ON OFF ON ON
DC power good LED ON OFF OFF OFF
Power supply fault
LED OFF OFF ON OFF
Fan assembly LEDs
The three disk-drive enclosure fan assemblies are located on the front lower third of the enclosure
chassis. There are two LEDs located on each fan. The green colored LED is lit when power to the
fan is present. The second LED is amber colored when lit and comes on when the fan needs to be
replaced.
Note:
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The fan does not need to be completely dead before the fan fault LED is lit. The fan can be
turning either to slow or to fast indicating to the system that it is having a problem.
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The fans green LED will remain lit even when the amber LED is indicating a fan fault.
SCSI card LEDs
Each SCSI card has a green and amber colored LED. The green colored LED indicates that
activity is taking place through the card. The amber colored LED is used as an identify LED and
indicates which one of the SCSI cards needs to be replaced.
The following two figures show the location of each LEDs found on your I/O enclosure.
Problem determination procedures
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