Reference Guide

Item
Purpose? (e.g. boot code)
How is data input to this memory?
Flash memory
Firmware
Common Flash memory Interface (CFI)
BP FRU image
FRU
I2C interface via iDRAC
Expander FRU image
FRU
I2C interface via iDRAC
H730, H830, H730p PERCs
NVSRAM
Configuration data
ROC writes configuration data to
NVSRAM
FRU
Card manufacturing information
Programmed at ICT during production.
1-Wire EEPROM
Holds default controller
properties/settings
ROC writes data to this memory
SPD
Memory configuration data
Pre-programmed before assembly
SBR
Bootloader
Pre-programmed before assembly
Flash
Card firmware
Pre-programmed before assembly. Can
be updated using Dell/LSI tools
ONFI Backup Flash
Holds cache data during power loss
FPGA backs up DDR data to this device
in case of a power failure
SDRAM
Cache for HDD I/O
ROC writes to this memory - using it as
cache for data IO to HDDs
H330, H330M PERCs
NVSRAM
Configuration data
ROC writes configuration data to
NVSRAM
FRU
Card manufacturing information
Programmed at ICT during production
1-Wire EEPROM
Holds default controller
properties/settings
ROC writes data to this memory
SBR
Bootloader
Pre-programmed before assembly
Flash
Card firmware
Pre-programmed before assembly. Can
be updated using Dell/LSI tools
IDSDM
SPI Flash
Exclusively used by the controller
SPI interface via iDRAC
MCU
Firmware
USB3.0 interface via PCH
Left Ear
SPI Flash
For field maintenance. Have License,
Service Tag and system information.
SPI interface via iDRAC