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Beginner
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Uncorrectable Memory Error & Patrol Scrub

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I am looking for articles/papers/documentation that relates to Uncorrectable Memory Errors on Xeon based server platforms. Specific interest area is Patrol Scrub.

Can enabling Patrol Scub lead to reporting of Uncorrectable Errors that would not otherwise occur if Patrol Scrub is disabled? What are the risks associated with disabling Patrol Scrub?


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Community Manager
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Re: Uncorrectable Memory Error & Patrol Scrub

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Hello edurai,

 

 

Memory Demand and Patrol Scrubbing: Demand scrubbing is the ability to write corrected data back to the memory once a correctable error is detected on a read transaction. Patrol scrubbing proactively searches the system memory, repairing correctable errors. It prevents accumulation of single-bit errors. Thus, there are risks at disabling it.

 

 

You could get more information at https://software.intel.com/sites/default/files/managed/b3/d1/MCA_Recovery_Validation_Guide.pdf https://software.intel.com/sites/default/files/managed/b3/d1/MCA_Recovery_Validation_Guide.pdf

 

 

Please post your question to the ‎https://software.intel.com/en-us/forum Intel®Developer Zone Forums.

 

 

 

Additional valuable information is available at https://software.intel.com/en-us/articles/intel-xeon-processor-e7-880048002800-v2-product-family-bas... https://software.intel.com/en-us/articles/intel-xeon-processor-e7-880048002800-v2-product-family-bas...

 

 

If you have any more questions, please let me know.

 

 

Best regards,

 

Caesar B_Intel

 

 

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Community Manager
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Re: Uncorrectable Memory Error & Patrol Scrub

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Hello edurai,

 

 

I will do some research and send you any documentation I find related to the topic as soon as possible. Thank you.

 

 

Best regards,

 

 

Franklin S.

 

Intel Technical Support.

 

Highlighted
Community Manager
164 Views

Re: Uncorrectable Memory Error & Patrol Scrub

Jump to solution

Hello edurai,

 

 

Memory Demand and Patrol Scrubbing: Demand scrubbing is the ability to write corrected data back to the memory once a correctable error is detected on a read transaction. Patrol scrubbing proactively searches the system memory, repairing correctable errors. It prevents accumulation of single-bit errors. Thus, there are risks at disabling it.

 

 

You could get more information at https://software.intel.com/sites/default/files/managed/b3/d1/MCA_Recovery_Validation_Guide.pdf https://software.intel.com/sites/default/files/managed/b3/d1/MCA_Recovery_Validation_Guide.pdf

 

 

Please post your question to the ‎https://software.intel.com/en-us/forum Intel®Developer Zone Forums.

 

 

 

Additional valuable information is available at https://software.intel.com/en-us/articles/intel-xeon-processor-e7-880048002800-v2-product-family-bas... https://software.intel.com/en-us/articles/intel-xeon-processor-e7-880048002800-v2-product-family-bas...

 

 

If you have any more questions, please let me know.

 

 

Best regards,

 

Caesar B_Intel

 

 

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