Sun Fire[TM] Servers: Memory Placement Optimization (MPO) Frequently Asked Questions (FAQ)
(Doc ID 1012194.1)
Last updated on APRIL 19, 2021
Applies to:
Sun Fire E4900 Server - Version Not Applicable and laterSun Fire E20K Server - Version Not Applicable and later
Sun Fire E25K Server - Version Not Applicable and later
Sun Fire 3800 Server - Version Not Applicable and later
Sun Fire E6900 Server - Version Not Applicable and later
All Platforms
Goal
This document provides information on some frequently asked questions about MPO (Memory Placement Optimization) on Sun Fire servers.
Questions included in this document are:
- Q1: What is MPO?
- Q2: Where can one find out more about MPO?
- Q3: How can one disable MPO?
- Q4: Why is the number of latency groups (nlgrps) larger than the number of system boards on the system?
- Q5: How do I know if MPO is enabled ?
- Q6: How do I know if non null proc LPA is enabled ?
Solution
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