Dell PowerEdge R715 Technical Manual

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DellPowerEdge R715 Technical Guide 60Server BMC (Baseboard ManagementController) also known as “iDRAC Express”boot block flashDetailsSize: 2 MBType: [e.g., Flash PROM, EEPROM]: Serial FlashCan user programs or operating system writedata to it during normal operation?NoDoes it retain data when powered off? YesPurpose? [e.g., boot code] iDRAC boot loader and configuration (i.e. MACaddress), Lifecycle log.How is data input to this memory? Data pre-programmed or update using Dellutility which is a DOS or Windows or Linuxbased executable containing firmware file andloaderHow is this memory write protected? Software write protectedRemarks Bad contents yield the iDRAC inoperable and isunrecoverable in the customer environment.Note the lifecycle log is automatically updatedby the iDRAC as various system component FW,HW and SW versions are changed.This flash resides on I/O boardServer BMC (Baseboard ManagementController) also known as “iDRAC Express”Internal FlashDetailsSize: 1 GBType: [e.g., Flash PROM, EEPROM]: NAND FlashCan user programs or operating system writedata to it during normal operation?NoDoes it retain data when powered off? YesPurpose? [e.g., boot code] iDRAC Operating System plus Managed SystemServices Repository (i.e. Unified ServerConfigurator, OS drivers, diagnostics, rollbackversions of various programmables)How is data input to this memory? iDRAC OS: Loading flash memory requires avendor provided firmware file and loaderprogram which is executed by booting up thesystem from a floppy or OS based executablecontaining the firmware file and the loader.System loaded without a good iDRAC firmwareimage yields a non-functional iDRAC. ManagedServices Repository: Various partitions areloaded via vendor provided firmware file andloader program just like iDRAC OS.How is this memory write protected? Software write protectedRemarks This flash resides on I/O board