User`s manual

37 Chapter 4 SCSI Storage
4.2 SAF-TE
Stands for SCSI Accessed Fault-Tolerant Enclosure. The SCA backplane
built-in GEM 318 which support SAF-TE provide a standard, non-propri-
etary way for third party disk and RAID controllers to be fully integrated
with peripheral packing that supports status signals (LED's, audible
alarm, LCD, etc), hot-swapping of hard drivers, and monitoring of enclo-
sure components, such as disks, power supplies, temperature, fans, etc.).
For ACP-7000, the GEM 318 checks the disks status only, for others as
fans, temperature, power supply and voltage are monitored by alarm
board.
Figure 4.1: SCA Backplane Layout