Rackable Systems OmniStor 4900F Series, User Manual, Page: 23 / 196

Chapter 1 - Getting Started
SES Controller Card
9
SES Controller Card
WARNING:
The SES Controller card is NOT HOT SWAPPABLE. You must POWER
DOWN the enclosure prior to removing or inserting this card.
The SES Controller card provides the built-in environmental and system status monitoring.
It also houses the switches for setting the drive spin up options. This card is installed at the
rear of the enclosure in the lowest slot below the two Disk I/O cards.
The SES processors continuously monitor the enclosure for temperature status, fan status,
power supply status, and FC loop status. The processors are responsible for reporting
environmental and system status to the front bezel LEDs/audible alarms, SES Monitoring
software (VT-100), and external monitoring software such as StorView.
SES Controller Card
At power up, the SES processors will read the switch settings and execute a self-test. The
cards’ firmware also contains software functions for enclosure monitoring and
management. This firmware is flash upgradeable using the SES RS-232 Service port
located on the card face plate. Refer to “Uploading SES Controller Card Firmware” on
page 125 for more details.
The SES protocol uses the drives installed in slots 1 and 7 to maintain its communication
link. You must install drives in both of these slots to ensure fault tolerance for the SES
communications link.