Controller Module - Sun Microsystems Sun StorEdge A3500 Manual

1.1

Controller Module

The Sun StorEdge A3500 controller module (
to provide high-performance disk array management services. Constructed for
installation and integration into Sun StorEdge A3500 systems, the controller module
supports dual SCSI hosts on a 16-bit SCSI-2 bus. In addition, the unit provides the
same SCSI-2 bus interface for drive trays in the expansion cabinet. There are two
SCSI controllers inside the controller module that use five independent drive
channels to manage data distribution and storage for up to 60 disk drives. The
controllers perform system status and fault detection functions as well.'
The Sun StorEdge A3500FC controller module (
functionality to the A3500 controller module. It is also intended for installation and
integration into Sun StorEdge A3500 systems. This controller module supports Fibre
Channel Arbitrated Loop (FC-AL) host connectivity. There are two FC-AL controllers
inside the controller module. Like the SCSI controllers, the FC-AL controllers use
five independent drive channels to manage data distribution and storage for up to
60 disk drives and perform system status and fault detection functions. The
A3500FC controller module provides the same SCSI-2 bus interface for drive trays in
the expansion cabinet.
The controller module chassis houses several removable, portable canisters:
Array controllers
Power supplies
Batteries
Cooling fans
You can access these components either from the front or rear of the controller
module.
1-2 Sun StorEdge A3500/A3500FC Controller Module Guide • August 1999
) is a compact unit designed
FIGURE 1-1
) is similar in design and
FIGURE 1-2