Table of Contents
Advertisement
Determining the need to replace the chassis
Before replacing the chassis, verify that the replacement is necessary. Ensure that
the components are firmly seated when troubleshooting. Contact IBM if you have
any questions about whether the chassis should be replaced. Any of the following
events might indicate that the chassis requires replacement:
v Visible mechanical damage to the chassis, including damage to sheet metal or
v Bent or damaged connectors on the main backplane (the surface inside the
v One or more replaceable components (fan or power supply) do not function
v The psShow or fanShow commands continue to show a faulty component even
Preparing for a chassis replacement
Use the following information to help prepare for a chassis replacement. The
power supplies and fans will be removed from the old chassis and installed in the
new chassis. The SFP transceivers, power cords, and rack installation hardware will
also be reused on the new chassis.
Attention: Refer to "Safety notices and labels" on page xi and "ESD precautions"
on page xvii before performing any removal or installation procedures.
Time and items required
The chassis replacement procedure takes approximately 1 hour to complete,
depending on number of SFPs and cables installed.
The following items are required for the chassis replacement procedure:
v Replacement chassis
v ESD grounding strap
v Phillips #2 screwdriver
v 1/4 in. straight slot screwdriver
Powering down the switch and disconnecting cables
If the switch is functioning at all, it must be disconnected from the network and
fabric. To disconnect the switch from the network and fabric complete these steps:
1. Shut down the system by entering the sysShutdown command.
2. Power off the chassis by disconnecting both power cords from the power
3. After ensuring that the cables are properly labeled, and the port connection
4. Group the cables together and position them safely away from the switch to
44
SAN42B-R Installation, Service, and User Guide
guides that prevents correct installation of a component.
chassis to which the power supply and fan FRUs connect).
properly even after the component is replaced.
though the component has been replaced.
supplies and the power sources. Set the cords aside for use with the new
installation.
information is recorded (see Appendix C, "Cable routing table," on page 59),
disconnect the cables and transceivers from the ports. Use the pull tab on the
16 Gbps SFP+ transceivers to remove the fiber cable and the attached SFP+ at
the same time (see "Installing SFP+ and QSFP transceivers and connecting
cables" on page 27).
avoid damage during the chassis replacement process.
Hide quick links:
Advertisement
Table of Contents
