SLAC National Accelerator Laboratory Controls

Department

IPMI is set of specifications

Monitors environmental variables (e.g. temperature, fan speed, voltage)

V 1.0: 1998 V 1.5: 2001 V 2.0: 2004

Baseboard Management Controller

Microcontroller that helps all elements communicate with one another

System Event Log (SEL)

By way of I2C I2C- Protocol with

two lines: Serial Clock Line (SCL) and Serial Data Line (SDA)

SCL Traffic Lights SDA Roads

Independent of main processor & operating system

Helps admins recover systems

Not all software are compatible with every OS, so you must check before downloading

Create system that implements IPMI for standalone electronics chassis

144 pins

12 pins for I2C (6 ports)

3 ports for transmitting/receiving data

Preserves information when power is off

I2C-compatible Ten-year data

storage

IPMI V 2.0 Directly connect

to BMC

TOP: HN-210 Serial/Modem Cable

BOTTOM: ENC28J60 Ethernet Controller

TOP: SC18IS602IPW I2C-to-SPI Bridge

BOTTOM: PCA9518 I2C Hub

Interchangeable parts Multiple chips of same component

(e.g. four chips for fan sensors)

Field-Programmable Gate Arrays

Programmable pins

More versatile than microcontrollers

U.S. Department of Energy, Office of Science, and the Science Undergraduate Laboratory Internship (SULI) program

Officemate: Susie Zheng Mentor: Ron Johnson Fellow workers: Kenneth Leung, Jeff Olsen, Andrew

Young, Dave Anderson, Dave Brown, John Dusatko, Robert Traller, Kazuko Onaga, Evgeny Medvedko, Chuck Yee, Vernon Smith, Deborah Lilly

Program Director Stephen Rock, Residence Assistant Howard Young, Program Manager SueVon Gee, and Program Administrators Vivian Lee and Elizabeth Smith.