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