IBM 2109 Service Guide - Page 49

Chapter 4. Maintenance action plans This chapter discusses the maintenance action plans (MAPs) for the 2109 Model S16 Switch. All service actions start from this point. The instructions in this chapter resolve most switch or GBIC failures. The switch provides extensive diagnostics that can be used in extended service environments that are not resolved in these maps. These diagnostics are described in the overview in "Chapter 1. Introduction" on page 1 and extensively in "Appendix B. Diagnostics" on page 91. Before beginning, familiarize yourself with Figure 16 to understand where the various switch components and indicators are located. Power supply 2 Power supply 1 Fiber Channel Switch 2109 S16 Port 0 Port LEDs Port 15 Ready LED Ethernet port Figure 16. Front panel of the 2109 Model S16 Switch SJ000056 Attention: If you are going to service a functional switch, never unplug cables or GBICs when there is activity on the associated ports. This causes an immediate failure of the communications path. To determine if a port has active communications, see "Visually inspect the LEDs" on page 34. If it becomes necessary to unplug active ports, you must have the customer stop all communications on these ports. Problem determination start map Always start any problem determination here and review the following steps. Gather as much information as possible before performing a repair action. For the latest information on the SAN Fibre Channel Switch, go to our Web site at: www.ibm.com/storage/fcswitch System reported error The customer has reported a switch-related system error message, or the customer has reported a failure when accessing storage or hosts that are attached to the © Copyright IBM Corp. 1999, 2000 33