Brocade Communications Systems X6-4, Руководство по установке оборудования, Страница: 147 / 249

2. To enable Lossless Dynamic Load Sharing, use the following options.
You can enable this feature on individual logical switches or each logical switch configured for the chassis.
•
Log in to each logical switch and enter the dlsset --enable -lossless command.
• Enable on all logical switches configured in the chassis using the fosexec --fid all -cmd dlsset command.
3. Disable each ICL port on the core blade that you are replacing using the portdecom [slot/]port command.
This command persistently disables the port without frame loss and moves all traffic flows from the port to redundant paths
between fabrics and ICL ports on the other core routing blade.
4. Confirm that all of the ICL ports are persistently disabled (decommissioned) on the blade by logging into the physical switch and
entering the portcfgpersistentdisable command.
This command displays the status of ports in each chassis slot.
5. Remove and replace the core blade following procedures in Removing a core routing blade on page 147 and Installing a core
routing blade on page 148.
NOTE
After installing the new blade, allow sufficient time for it to initialize and for all decommissioned ports to transition back
online.
Removing a core routing blade
Perform the following procedures to remove one core routing blade at a time with chassis power on. You must replace the blade and
ensure its operation before removing the other core routing blade. Removing both blades will power down the chassis. To replace both
blades at the same time, power down the chassis and perform the following steps.
1. Remove the chassis door.
2. Check the blade power and status LEDs and port status LEDs on the front of each blade to identify any possible problems.
3. Before replacing a blade, establish a Telnet or console connection to determine a failure and verify operation after replacement.
Use the switchShow and slotShow commands to view the status of the blades.
4. Ensure that existing traffic through blade ICL ports will not be disrupted when the blade is removed by performing steps under
Preparing for replacement on page 146.
5. Check for adequate cable slack. Ensure there is plenty of cable slack to remove a blade without cable obstruction.
6. Ensure that the part number on the unit being replaced matches the replacement part number. The
chassisShow command
displays information about the blades, including part numbers ( xx-xxxxxxx-xx ), serial numbers, and additional status.
7. Disconnect all cables and remove transceivers from the blade.
8. Label and then disconnect cables from the faulty core routing blade.
9. Loosen the captive screws for both ejector handles on the blade using a #1 Phillips screwdriver.
Loosening the screws initiates a hot-swap request and disconnects power from the blade. The spring-loaded captive screws will
pop out from the slot .63 cm (.25 in.) when fully disengaged. Do not eject the blade using blade handles until screws disengage
from slot and the power LED is off.
10. Grasp both ejector handles and simultaneously pull them away from the center of the blade using equal pressure to
approximately 45 degrees (fully open).
As you move the handles, you will hear connectors disengaging from the backplane connector and possibly a slight popping
noise. This is normal and is due to the dense backplane. The blade will move out approximately 1.27 cm (.5 in.) from the slot
when fully disengaged.
Replacing a core routing blade
Brocade X6-4 Director Hardware Installation Guide
53-1004106-07 147