Dell PowerEdge R750xa EMC PMem 200 Series Users Guide - Page 31
Crypto erase, Sanitize, System BIOS Settings, Persistent Memory, Intel Persistent, Memory
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● Sanitize Both erase methods can be executed using BIOS setup options. User can choose to perform an erase on all or a subset of installed PMems. Crypto erase The Crypto Erase function erases the App-direct Region Key (PM-RK) forcing the system to reboot. Cryptographic erase option can be accessed by going to: System BIOS Settings > Persistent Memory > Intel Persistent Memory > DIMM Configuration Figure 14. Crypto erase NOTE: It is not recommended to erase part of PMems installed on the system when App-direct interleaved region is configured. This operation renders all the data on the interleave set invalid. Sanitize PMem Sanitization is a long operation which runs on all the selected persistent memories in parallel. This process does a cryptographic erase first and writes zeros to all accessible persistent media regions on the PMem. Also, it destroys any existing memory goal contents. The region of the PMem where the goal is configured will be empty and on the next boot the memory will default to 100% Memory Mode. If the system does not have the proper ratio of RDIMM or LRDIMM memory to PMem, it is expected on the following boot for an error to occur indicating that the ratio is not optimized. Sanitize option can be accessed by going to: System BIOS Settings > Persistent Memory PMem security 31
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