Adaptec 412R User Guide - Page 75

Understanding and Maintaining Components 3 Remove the replacement cooling fan module from the shipping container. Inspect the module for obvious damage. 4 Slide the new cooling fan module into the open bay until it seats completely and the retaining latch resets. The fan status LED on the front bezel changes to solid green to indicate normal fan status. SAF-TE Disk I/O Card Warning: The SAF-TE disk I/O card is not hot-swappable. You must power down the storage subsystem to remove or replace this card. See Turning the Power Off on page 2-7. The SAF-TE disk I/O card (Figure 5-14) provides environmental and system status monitoring, and connectivity to the disk drive channels for daisy-chain requirements. It also contains the SAF-TE switches that are used for setting SCSI IDs, VT-100 communication protocols, and drive spin-up options. Note: Specific switch settings are discussed in Chapter 2, Setting Up Your Storage Subsystem. A ARS SBDR 0 1D0 1DLM 1 2 34 5 67 8 Figure 5-14 SAF-TE Disk I/O Card The SAF-TE disk I/O card houses two SAF-TE environmental processors (SEPs) compliant with SAF-TE specification protocol version 1.0. The SEPs monitor the disk drives, PSUs, cooling fans, and storage subsystem temperature and continually report conditions to the host system. 5-17 BSSRCCDRppeooeAAlIaannUamrrffiiDyoeeDggtuuDe21RrrriaaaDtvttiirieeoovnneSSte12laSrtetactrt