Product specifications

SecurStor 16i Installation and Hardware Reference Manual
3-2
 Inter-Integrated Circuit (I
2
C): The I
2
C serial bus is used to connect various
temperature sensors and presence detection circuits within the chassis.
Subsystem monitoring is a necessary part of subsystem management. If failure events or other
disruptive events are detected and reported, the subsystem managers must take appropriate
actions to rectify the problem. Failure to act in a properly specified manner to a system event
(like overheating) can cause severe and permanent damage to the subsystem.
3.2 Status-indicating LEDs
3.2.1 Brief Overview of the LEDs
The following devices all come with LEDs that inform subsystem managers about
the operational status of the component.
Component LEDs per Unit Total LEDs Definition
Drive Trays
2 32 See Section 0
Controller
Module
7 7 See Section 0
Ethernet
Ports
2 10 (5 ports)
BBU Module
(if BBU is
installed)
1 1 See Section 0
PSU Module
1 2 See Section 0
Cooling
Module
2 4 See Section 0
Table 3-1: LED Distribution
LED definitions are given in the following sections.
3.2.2 Drive Tray LEDs
Two (2) LED indicators are located on the right side of each drive tray. (See Figure
3-11) Refer to
Table 3-2 for the LED definitions. When notified by a drive failure
message, you should check the drive tray indicators to find the correct location of the
failed drive. Replacing the wrong drive can fail two members of a logical array
(RAID 3/5) and thus destroy data in the array.
Formatted: Bullets and Numbering
Formatted: Bullets and Numbering