IBM SAN256B-6, Installation, Service And User Manual

Page: 147 / 292

Precautions specific to the blade
This topic describes how to remove and replace a port or extension blade.
Observe the following precautions when replacing these blades:
v The SX6 extension and FC32-48 port blade can only be installed in SAN512B-6 and SAN256B-6
switches.
v Wear an appropriately grounded ESD wrist strap when handling and installing device blades and
cards. Follow electrostatic discharge (ESD) precautions. Wear a wrist grounding strap connected to
chassis ground (if the chassis is plugged in) or a bench ground.
v Install port and extension blades only in slots 3–4 and 7–8. Slots 5 and 6 are reserved for CR32-4
blades. These blades cannot be installed in other slots as guide pins and connectors in each slot allow
only specific blade types.
CAUTION:
For safety reasons, the ESD wrist strap should contain a series 1 megaohm resistor.
CAUTION:
If you do not install a module or a power supply in a slot, you must keep the slot filler
panel in place. If you run the chassis with an uncovered slot, the system will overheat.
CAUTION:
Static electricity can damage the chassis and other electronic devices. To avoid damage,
keep static-sensitive devices in their static-protective packages until you are ready to
install them.
CAUTION:
Before plugging a cable into any port, be sure to discharge the voltage stored on the cable
by touching the electrical contacts to ground surface.
CAUTION:
To avoid damaging blade and chassis, do not use ejector handles to push the blade into or
pull the blade out from a slot.
Faulty blade indicators
Confirm that you need to replace the blade before continuing. The following events may indicate that a
blade is faulty:
v The status LED on the blade is lit steady amber, or the power LED is not illuminated.
v The slotShow command does not show that the blade is enabled.
v errShow - Displays error log messages one at a time.
v Any of the following messages display in the error log or "show" command output:
– "Slot unknown" message relating to the blade slot
– FRU: FRU_FAULTY messages for the blade
– FAULTY (xx) with an associated (xx) code used by support
For output examples and additional information on Fabric OS commands, refer to “Using monitoring
commands” on page 97 and the Fabric OS Command Reference.
For more information about error messages, refer to the Fabric OS Message Reference.
Port and Extension Blades
119