Dell PowerEdge R910 Technical Manual page 52

Dell
Can user programs or operating system write
data to it during normal operation?
Does it retain data when powered off?
Purpose? [boot code]
How is data input to this memory?
How is this memory write protected?
Remarks
Server BMC/iDRAC Express Internal Flash
Size:
Type [Flash PROM, EEPROM]:
Can user programs or operating system write
data to it during normal operation?
Does it retain data when powered off?
Purpose? [boot code]
How is data input to this memory?
How is this memory write protected?
System Event Log (SEL) Memory and Baseboard FRU
Size:
Type [Flash PROM, EEPROM]:
Can user programs or operating system write
data to it during normal operation?
Does it retain data when powered off?
Purpose? [boot code]
How is data input to this memory?
Dell PowerEdge R910 Technical Guide
No
Yes
iDRAC boot loader and configuration (i.e. MAC
address), Lifecycle log.
Data pre-programmed or update using Dell
utility which is a DOS or Windows or Linux based
executable containing firmware file and loader
Software write protected
Bad contents yield the iDRAC inoperable and is
unrecoverable in the customer environment.
Note the lifecycle log is automatically updated
by the iDRAC as various system component FW,
HW and SW versions are changed.
1 GB
NAND Flash
No
Yes
iDRAC Operating System plus Managed System
Services Repository (i.e., Unified Server
Configurator, OS drivers, diagnostics, rollback
versions of various programmables)
iDRAC OS: Loading flash memory requires a
vendor-provided firmware file and loader
program which is executed by booting up the
system from a floppy or OS-based executable
containing the firmware file and the loader.
System loaded without a good iDRAC firmware
image yields a non-functional iDRAC.
Managed Services Repository: Various partitions
are loaded via vendor-provided firmware file
and loader program just like iDRAC OS.
Software write protected
4 KB
SERIAL EEPROM
No
Yes
Store system events from BMC and BIOS. FRU
information for board such as PPID, MAC
addresses etc.
For SEL, BMC writes to it.
For FRU, data is pre-programmed or input using
52