HP A7990A - StorageWorks SAN Director 4/16 Blade Switch, Hardware Reference Manual

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76 Installing Field-replaceable units (FRUs)
Core switch blade (CR8)
This section describes how to remove and replace a core switch blade. Each DC Director integrates two
core switch blades located in slot 5 and slot 8.
The replacement procedure for the core switch blade takes approximately 30 minutes. The following items
are required for the core switch blade replacement:
• ESD grounding strap
• Phillips #2 screwdriver
• Replacement core switch blade (requires the DC Director core switch blade (CR8).
How to determine whether or not to replace a CP blade
Confirm that you need to replace the core switch blade before continuing. The following events might
indicate that a core switch blade is faulty:
• The status LED on the core switch blade is lit amber, or the power LED is not lit.
• The
slotShow
command does not show that the core switch blade is enabled.
• The
haShow
command indicates an error.
• Any of the following messages display in the error log:
•
Slot unknown
message relating to a core switch blade slot
• core switch blade errors or I
2
C timeouts
•
FRU: FRU_FAULTY
messages for a core switch blade
•
Configuration loader
messages or
Sys PCI config
messages
• Generic system driver messages (
FABSYS
)
• Platform system driver messages (
Platform
)
•
EM
messages that indicate a problem with a core switch blade
• Function fail messages for the core switch blade master
For more information about error messages, refer to the Fabric OS Message Reference .