Replacing a core switch blade (CR8)
This section describes how to remove and replace a core switch blade. Each DC SAN Director
integrates two core switch blades, which are 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 DC SAN 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.
Removing a core switch blade (CR8)
The DC SAN Director continues to operate while a core switch blade is being replaced.
NOTE:
The CR8 blade is compatible only with the DC SAN Director.
To remove a CR blade:
CAUTION:
Wear a grounded ESD strap when handling a CR8 blade. Use the grounding connections above the
power connectors on the chassis.
1. Remove the chassis door. See “Removing the chassis door” on page 73.
Replacing DC SAN Director field-replaceable units (FRUs)86
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