80 Bays SAS to SAS/SATA JBOD Subsystem
20
User Manual
2.5 Expander Module
The 80bay JBOD subsystem contains
Master
and
Slave Expander Modules
. The
Expander Module contains the SAS expander. It can be used to upgrade the SAS
expander firmware. It also contains the SES module (SCSI Enclosure Services).
SES is the protocol used for enclosure environmental control.
The
master
expander module monitors the following enclosure conditions:
temperature, power supply voltage, and fan speed.
The slave expander module monitors the temperature and power supply voltage
conditions. (Only for dual JBOD controller)
