HP Surestore Disk Array 12h and FC60 User Manual

Page 30

Advertising
background image

30 Disk Enclosure Components

Each BCC provides two LVD SCSI ports (B in

Figure 5

) for connection to the controller

enclosure.

The EEPROM on each BCC stores 2

K

bytes of configuration information and user-defined

data, including the manufacturer serial number, World Wide Name, and product number.

The following are additional features of the BCC:

•

LEDs (C in

Figure 5

) show the status of the BCC and the bus.

•

A rotary switch (D) used to set the enclosure (tray) ID which is used by internal
controller operations, and also by the management tools to identify each enclosure.

•

DIP switches set disk enclosure options. The only option used by the Disk Array FC60
is the full-bus/split-bus mode.

•

Screws (F) prevent the card from being unintentionally disconnected.

•

Cam levers (G) assist in installing and removing the BCC from the enclosure, ensuring
a tight connection with the backplane.

BCC functions include drive addressing, fault detection, and environmental services.

Advertising