IBM SAN256B-6, Installation, Service And User Manual

Page: 165 / 292

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.
Blade fault indicators
Confirm that you need to replace the CP blade. The following events may indicate that a CP blade is
faulty:
v The status LED on the CP blade is lit steady amber, or the power LED is not illuminated. Refer to
“Interpreting control processor blade LEDs” on page 88 for details on interpreting LED operation.
v The CP blade does not respond to Telnet commands, or the serial console is not available.
v The haShow command indicates an error.
v The clock is inaccurate, or the CP blade does not boot up or shut down normally.
v Any of the following messages display in the error log:
– "Slot unknown" message relating to a CP slot
– CP blade errors or I2C timeouts
– FRU: FRU_FAULTY messages for a CP 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 CP blade
– Function fail messages for the CP master
Refer to“Using monitoring commands” on page 97 and theFabric OS Command Reference for output
examples and additional information on Fabric OS commands.
For more information about error messages, refer to theFabric OS Message Reference.
Blade replacement task guide
This section contains a guide to more complete, detailed steps in this section for installing or replacing
CP blades when the device is running (hot swap) or must be powered off (cold swap). References are
provided to the more detailed blade removal and installation steps for further information.
Replacing CP blade (hot-swap)
For hot-swap replacement, the chassis continues to operate while a CP blade is being replaced if the
redundant CP blade is active and a failover does not occur. You can prevent failover by entering the
haDisable command. You can replace one blade or both blades one at a time using these steps. Follow all
steps for one blade, and then repeat the same steps to replace the other blade.
1. Prepare for replacing the blade by following all steps under “Preparing for replacement” on page 138.
2. Remove the blade from the slot by following all steps under “Removing a blade” on page 140.
3.
Install a new blade into the empty slot by following all steps under “Installing a blade” on page 141.
4. Verify and synchronize firmware on both blades by following all steps under “Verifying and
synchronizing firmware on blades” on page 142.
Control Processor Blades
137