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Dell Poweredge el Руководство
Item
FRU
1-Wire EEPROM
SPD
SBR
SPI Flash
Flash
ONFI Backup Flash
SDRAM
H310, H310M PERCs
NVSRAM
FRU
1-Wire EEPROM
SBR
Flash
PCIe SSD Extension Card
Switch Configuration
EEPROM
IDSDM
SPI Flash
MCU
Purpose? (e.g. boot code)
Card manufacturing information
Holds default controller
properties/settings
Memory configuration data
Bootloader
FPGA configuration data
Card firmware
Holds cache data during power loss
Cache for HDD I/O
Configuration data
Card manufacturing information
Holds default controller
properties/settings
Bootloader
Card firmware
Configuration for PLX PCIe switch,
setting registers
Exclusively used by the controller
Firmware
How is data input to this memory?
Programmed at ICT during production.
ROC writes data to this memory
Pre-programmed before assembly
Pre-programmed before assembly
Pre-programmed before assembly. Can
be updated using Dell/LSI tools
Pre-programmed before assembly. Can
be updated using Dell/LSI tools
FPGA backs up DDR data to this
device in case of a power failure
ROC writes to this memory - using it as
cache for data IO to HDDs
ROC writes configuration data to
NVSRAM
Programmed at ICT during production
ROC writes data to this memory
Pre-programmed before assembly
Pre-programmed before assembly. Can
be updated using Dell/LSI tools
The EEPROM image is pre-loaded at
factory before assembly. Once
assembled on the card, data can be
entered via PLX Device Editor or PLX
EEP DOS based tool.
SPI interface via iDRAC
USB interface via PCH