Power-on self test (POST) conditions and results are summarized in Table 15 on page 63. These states
can be used to identify abnormal states or problems. Follow the action to be taken for each condition.
Table 15. POST conditions and results
Green LED Yellow LED State Action to be taken
Off Off Wake-up failure (dead
board)
Perform AIX, IBM i, or Linux operating system
diagnostics procedure.
Off On POST failure (dead board) Perform AIX, IBM i, or Linux operating system
diagnostics procedure.
Off Slow flash Wake-up failure monitor Perform AIX, IBM i, or Linux operating system
diagnostics procedure.
Off Fast flash POST failure Perform AIX, IBM i, or Linux operating system
diagnostics procedure.
Off Flashing POST processing in
progress
None
On Off Failure while functioning Perform AIX, IBM i, or Linux operating system
diagnostics procedure.
On On Failure while functioning Perform AIX, IBM i, or Linux operating system
diagnostics procedure.
Slow flash Slow flash Offline for download None
Slow flash Fast flash Restricted offline mode,
waiting for restart
None
Slow flash Flashing Restricted offline mode,
test active
None
Fast flash Off Debug monitor in restricted
mode
None
Fast flash On Not dened None
Fast flash Slow flash Debug monitor in test
xture mode
None
Fast flash Fast flash Debug monitor in remote
debug mode
None
Fast flash Flashing Not dened None
Replacing Fibre Channel adapters by using hot swap
When hot swapping Fibre Channel adapters, be aware that device-related software for the storage
devices might have extra devices (for example, the disk array router (dar) device that is associated with
the ber array storage technology (FAStT) or DS4800) that need to be removed. See the specic storage
device documentation for information about how to remove these additional devices.
The new adapter has a unique worldwide port name (WWPN). Check the zoning and logical unit number
(LUN) assignments to ensure that the new adapter functions as expected.
Operating system or partition requirements
If you are installing a new feature, ensure that you have the software that is required to support the new
feature and that you determine whether any prerequisites must be met for this feature and attaching
devices. For information about operating system and partition requirements, see one of the following
topics:
Managing PCIe adapters
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