Chapter 1 Introduction
16
Storage Center SC8000 Controller Deployment Guide
SC280 EMM Features and Indicators
SC280
enclosures
include
two
Enclosure
Management
Modules
(EMM)
in
two
interface
slots.
Each
EMM
IO
Module
includes
an
EEPROM
that
holds
data
describing
the
function
and
capability
of
the
EMM
module.
Each
EMM
module
can
discover
the
type
and
capabilities
of
its
partner
EMM
module
within
the
enclosure.
Incompatible
configurations
result
in
an
enclosure
system
alarm.
Each
port
has
four
separately
arbitrated
physical
lanes.
A
green
LED
indicates
the
status
of
each
lane.
The
IO
Module
and
Fault
indicators
provide
status
as
described
below.
Figure 12. IO Module Indicators
Item Name
Icon
Description
1
Power
indicator
•
Green
(steady):
Module
OK.
•
Green
(flashing):
Vital
product
data
(VPD)
fault.
•
Off
:
Module
fault.
2
IO
Module
fault
indicator
Amber
:
IO
module
error.
3
Console
—
Factory
use
only.
4
Lane
LEDs
—
•
Solid
Green
:
Connected,
No
activity.
•
Flashing
:
Activity.
5
SAS
port
A
(in)
Connects
to
other
enclosures.
6
SAS
port
B
(out)
Connects
to
other
enclosures.
7
SAS
Port
C
The
C
‐
port
always
connects
to
the
controller.
2
1
4
3
5
6
7
