Dell PowerEdge R910 - Page 58

Dell
Dell PowerEdge R910 Technical Guide 58
Dell Internal Dual SD Module (IDSM) microcontroller flash (if present)
Size:
256 KB
Type [Flash PROM, EEPROM]:
EEPROM
Can user programs or operating system write
data to it during normal operation?
No
Does it retain data when powered off?
Yes
Purpose? [boot code]
Store firmware for IDSM functionality
How is data input to this memory?
Loading flash memory requires a vendor-
provided firmware file and loader program.
IDSDM module loaded with arbitrary data in
firmware memory would not operate.
How is this memory write protected?
Software write protected
Remarks
IDSM is an option
Dell Internal Dual SD Module (IDSM) write journal flash (if present)
Size:
8 MB
Type [Flash PROM, EEPROM]:
EEPROM
Can user programs or operating system write
data to it during normal operation?
No
Does it retain data when powered off?
Yes
Purpose? [boot code]
Store write journal for shutdown recovery
How is data input to this memory?
IDSM microcontroller writes to and read from
these memory via SPI interface during
operation.
How is this memory write protected?
Software write protected
Remarks
IDSM is an option
SD card(s) (if present) for IDSM (one or two SD cards depending on the redundancy mode
ordered with it)
Size:
Multiple (1GB, 2GB, 8GB)
Type [Flash PROM, EEPROM]:
Secure Digital NAND Flash
Can user programs or operating system write
data to it during normal operation?
No
Does it retain data when powered off?
Yes
Purpose? [boot code]
Normal usage is embedded Hypervisor OS but
not limited
How is data input to this memory?
Factory load, OS run time usage and OS updates
and configuration changes.
How is this memory write protected?
Media-write protection or software-write
protected
Remarks
IDSM is an option
vFlash for iDRAC Enterprise
Size:
Multiple
Type [Flash PROM, EEPROM]:
Secure Digital NAND Flash