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LS Module
The LS Module (Loop Resiliency and SES Module) provides monitoring
and control for the Altos S700 Series. The module reports status and
receives control information over the Enclosure Services Interface (ESI)
port of any of the fourteen disk drives installed in the enclosure. The LS
Module also provides loop resiliency for the Fibre Channel loop (in the
form of Port Bypass Circuits).
The Altos S700 Series contains one LS Module
second optional LS Module is available to provide active/passive fail-
over for the enclosure services communication, and to provide a
second Fibre Channel Loop. Only one LS Module communicates (using
ESI communication) with the host system at any one time, but both LS
modules will continuously monitor the system. If the active LS Module
fails, then the ESI communication with the host system will be taken
over by the passive LS Module.
LS Module Features
•
Monitoring/Control for 2 Power Supplies and 2 ACMs
•
Reports status and receives control information via the FC loop
•
Microcontroller for data processing, control and communications
•
Volatile and non-volatile memory for the microcontroller
•
Temperature sensor
•
Audible alarm with manual and software disable
•
FC link monitoring and status information
•
Firmware download capability
•
Reporting of PSU, LS module, I/O module, and backplane serial
number and revision
•
I/O module and backplane type reporting
•
Control of 6 front LEDs for enclosure and module status
•
I/O option slot status monitoring
1
For RAID configurations, there must be two LS modules installed.
Chapter 5 System Monitoring
1
as standard. However, a
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