Dell External OEMR XL R210II Technical Guide - Page 71

Methodology for Memory Protection and Clearing

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Dell Table 36. Methodology for Memory Protection and Clearing Planar System BIOS SPI Flash LOM Configuration Data iDRAC6 Controller ROM iDRAC6 controller RAM How is this memory write protected? How is the memory cleared? Software write protected No explicitly protected but special applications are needed to communicate through the LOMs to reprogram this ROM protected permanently by hardware Not possible with any utilities or applications and system is not functional if corrupted/removed. Not user clearable Not clearable n/a iDRAC reset System CPLD (non-volatile) System CPLD (volatile) iDRAC6 Express Internal Flash System RAM TPM ID EEPROM (Plug in module only) Requires special system specific utility Not possible with any utilities or applications and system is not functional if corrupted/removed. Not accessible Not clearable Writes are proxied through a temporary iDRAC scratchpad RAM and not directly made from an OS or OS application Not user clearable OS control Reboot or power down system HW read only Not clearable, read only 71 PowerEdge R210 Technical Guide

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Dell
71
PowerEdge R210 Technical Guide
Table 36.
Methodology for Memory Protection and Clearing
How is this
memory
write
protected?
How is the memory cleared?
Planar
System BIOS SPI
Flash
Software
write
protected
Not possible with any utilities or applications and system
is not functional if corrupted/removed.
LOM
Configuration
Data
No explicitly
protected but
special
applications
are needed to
communicate
through the
LOMs to
reprogram
this ROM
Not user clearable
iDRAC6
Controller ROM
protected
permanently
by hardware
Not clearable
iDRAC6
controller RAM
n/a
iDRAC reset
System CPLD
(non-volatile)
Requires
special system
specific utility
Not possible with any utilities or applications and system
is not functional if corrupted/removed.
System CPLD
(volatile)
Not accessible
Not clearable
iDRAC6 Express
Internal Flash
Writes are
proxied
through a
temporary
iDRAC
scratchpad
RAM and not
directly made
from an OS or
OS application
Not user clearable
System RAM
OS control
Reboot or power down system
TPM ID EEPROM
(Plug in module
only)
HW read only
Not clearable, read only