IBM SAN768B-2, Installation, Service And User Manual

Page: 72 / 186

Managing cables
Attention: The minimum bend radius should be no smaller than 10x the cable
radius. The minimum bend radius for a 50 micron cable is 5 cm (2 in.) under full
tensile load and 3 cm (1.2 in.) with no tensile load.
Note: Contact your IBM representative for options regarding different cable and
patch panel configurations to simplify cable management with higher
density FC8-64 port blades.
Cable management recommendations:
v Leave at least 1 m (3.28 ft) of slack for each port cable. This provides room to
remove and replace blades in the chassis, allows for inadvertent movement of
the rack, and helps prevent the cables from being bent to less than the minimum
bend radius.
v
If ISL Trunking is in use, group the cables by trunking group. The ports are
color-coded to indicate which ports can be used in the same ISL Trunking group:
eight ports marked with solid black ovals alternate with eight ports marked with
oval outlines.
v Use only hook-and-loop fasteners for securing optical cables. Do not use cable
ties. They can be easily overtightened and can damage the optical cables.
v
For easier maintenance, label the fiber optic cables and record the devices to
which they are connected.
v
Use the cable management fingers attached to the rack rails to organize the
cables off to the side of the chassis, and away from the chassis exhaust vents.
v Keep LEDs visible by routing port cables and other cables away from the LEDs.
For the procedure to install the ICL cables see “Removing and replacing
inter-chassis link (QSFP) cables” on page 95.
Verifying correct operation and backing up the configuration
To verify correct operation and to back up the system, follow these steps.
1. Check the LEDs to verify that all components are functional. For information
about LED patterns, see Chapter 4, “Monitoring system components,” on page
45.
2. If necessary, log on to the switch by Telnet, using the admin account.
3.
Verify the correct operation of the system by entering the switchShow
command from the workstation. This command provides information about
switch and port status.
4. Verify the correct operation of the SAN768B-2 in the fabric by entering the
fabricShow command from the workstation. This command provides general
information about the fabric.
5. To back up the configuration, run the following two steps:
a. Enter the configupload -vf command. This command uploads the system
virtual fabric data.
b. Enter the configupload command. This command uploads the system
configuration.
6.
Run the following commands to see additional configuration information that
you can then copy to a file to save:
v configShow
v
ipAddrShow
42
SAN768B-2 Installation, Service, and User Guide