slac national accelerator laboratory controls department
TRANSCRIPT
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.