EonStor U16U Installation and Hardware Reference Manual
3-2
Subsystem Monitoring Overview
3.2. Subsystem Monitoring Overview
The ES subsystem is equipped with a variety of self-monitoring features that help to keep
subsystem managers informed of the subsystem operational status. These monitoring
features provide vital feedback that helps users maintain the operational integrity of the
subsystem. Prompt response to warnings and subsystem component failure notifications
will improve the overall operation of the subsystem and help to ensure the longevity of
the ES RAID subsystem.
Self-monitoring features include:-
♦
Management Firmware (FW)
– The ES RAID subsystem controller comes with
pre-installed FW (version 3.31 or above). The FW can be accessed using either the
LCD panel or a PC hyper-terminal. The ES subsystem can be connected to a PC
hyper-terminal through the RS-232C serial port. Device status information can be
obtained from the FW. The FW has been fully described in the
Generic User's
Manual
that came with the subsystem. Please refer to this manual for further
details.
♦
RAIDWatch
– RAIDWatch is a fully integrated Java based Graphics User Interface
(GUI) (that came with the subsystem) and can be used to monitor the subsystem
remotely. The powerful
Notification Process Center
(NPC) sub-module can be
used to keep user’s informed over a variety of communication devices like FAX,
pager, e-mail etc. The installation and operation of RAIDWatch has been fully
described in the
RAIDWatch User’s Manual
. Please refer to this manual for
further details.
♦
LEDs
– Device status indicating LEDs are placed on all the ES active components.
These LEDs are used to inform users of the integrity of a given component or of a
given SCSI-320 link. A user should familiarize themselves with the different LEDs
that are present on the subsystem and be aware of their functions.
♦
Audible Alarm
– An audible alarm is present on the subsystem controller board and
will be triggered if any of a number of threatening events occur. These events
usually jeopardize the functional and operational integrity of the controller board
and must be heeded at all times. Events such as a breaching of the temperature
threshold will trigger the alarm and if an onsite subsystem manager is present, the
manager should, using either the LCD panel or the PC hyper-terminal, determine
the cause of the alarm and take the appropriate corrective measures.
♦
I
2
C –
The I
2
C bus is used to monitor the operational integrity of the Cooling FAN
modules and the PSU modules of an external JBOD.
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 the
