Chapter 1: Introduction
1-7
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Fast Ethernet Mgmt. Port: A 10/100BaseT Ethernet port
connects the system to a network and then to a management
computer. Available management interfaces include telnet and
Java-based Galaxy Array Manager.
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Controller LEDs: Each controller board rear panel comes with
six (6) controller status LED indicators. Please refer to Chapter 4
for information on how to monitor your subsystem using these
LED indicators.
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Restore Default Button & LED: The restore default button and
LED are used to restore firmware defaults in cases when
upgrading firmware, upgrading DIMM size, or if an administrator
forgets the system password. For more details, please refer to
Chapter 4.
1.2.4 Cache Module
The controller default for the cache module is a 1GB DDRII module
and the maximum size that can be allocated is 4GB. The memory
socket is located on the side of the controller board.
1.2.5 CBM (Optional Feature)
The Cache Backup Module (CBM) is an optional feature for the single
controller model of the Galaxy. The CBM consists of a Li-Ion battery
backup unit (BBU) module and a flash backup module (see the
diagram below). The BBU can support the transfer of cached data
from cache memory to an onboard flash backup module in the event
of a power outage.
