HP DC SAN Backbone Director Switch Hardware Reference Guide (5697-2158, August 2012)
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
• #2 Phillips screwdriver
• Replacement DC SAN Director core switch blade (CR8)
Determining 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, see 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.
CAUTION: Wear a grounded ESD strap when handling a CR8 blade. Use the grounding
connections above the power connectors on the chassis.
NOTE: The CR8 blade is compatible only with the DC SAN Director.
Replacing a core switch blade (CR8) 73