Справочник Пользователя для IBM Flex System V7000 Expansion Enclosure 4939H29

Chapter 13. Maintenance and Troubleshooting 

Draft Document for Review January 29, 2013 12:52 pm

When you turn on the system, the node canisters perform self-tests. A series of tests is 
performed to check the operation of components and some of the options that have been 
installed when the units are first turned on. This series of tests is called the power-on self-test 
(POST).

If a critical failure is detected during the POST, the software is not loaded and the fault LED is 
illuminated. To determine if there is a POST error on a canister, go to 13.2.1, “Understanding 
the system state using the control enclosure LEDs” on page 524 and 13.2.2, “Understanding 
the system state using the expansion enclosure LEDs” on page 529

When the software is loaded, additional testing takes place, which ensures that all of the 
required hardware and software components are installed and functioning correctly.

After installing the enclosures in the IBM Flex System Enterprise Chassis, use the following 
procedure to verify the enclosure power on status using the light emitting diodes (LEDs).

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Make sure that the Flex System chassis is powered on. If the IBM Flex System Enterprise 
Chassis is not powered on, the enclosures are not able to power on.

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Observe the power on LED state for each canister in each enclosure. See Table 13-2 on 
page 526 and Table 13-9 on page 532 for the power on LED states. The power on LED for 
each canister must be in the blink state before the enclosures will power on.

You might have to wait up to ten minutes after installing the enclosure in the chassis before 
the power on LEDs reach the blink state and can be automatically powered on. If the 
enclosure does not reach the blink state after waiting ten minutes, see IBM Flex System 
V7000 Storage Node Troubleshooting, Recovery, and Maintenance Guide PDF on the CD

SAS port 
status

Amber

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OFF – There have been no faults or conditions detected by the 
expansion canister on the SAS port or down stream device connected 
to the port

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ON SOLID – There has been a fault condition isolated by the 
expansion canister on the external SAS port

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SLOW BLINK – The port has been disabled and will not service SAS 
traffic

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BLINK – One or more of the narrow ports of the SAS links on the wide 
SAS port link have failed, the port is not operating as a full wide port

SAS port 
activity

green

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 OFF – Power is not present or there is no SAS link connectivity 
established

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ON SOLID – There is at least 1 active SAS link in the wide port 
established and there is no external port activity

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FLASHING – The expansion port activity LED should flash at a rate 
proportional to the level of SAS port interface activity as determined by 
the expansion canister. The port shall also blink when routing updates 
or configuration changes are being performed on the port

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