Power Systems Memory Deduplication Power Systems Memory Deduplication

Power Systems Memory Deduplication

Publisher Description

This IBM® Redpaper™ publication introduces IBM PowerVM® Active Memory™ Deduplication on IBM Power Systems™ based on IBM POWER7® processor technology.

Active Memory Deduplication is a virtualization technology through which memory pages with identical contents can be deduplicated in physical memory. This deduplication frees up physical memory positions so that more data can be held in memory at once.

Memory deduplication is intended to work in a shared memory environment. Deduplication works with Active Memory Sharing, a technology through which multiple partitions on a system can share a pool of physical memory. Sharing this pool sometimes creates an overcommitment of this physical memory. Active Memory Deduplication increases the performance of Active Memory Sharing because the savings can be used to lower memory overcommitment levels. Reduction of memory in use can also create room to increase the memory footprint of the logical partitions (LPARs).

This paper describes the advantages of Active Memory Deduplication and requirements for its use and implementation in your Power Systems. This paper also helps you set up Active Memory Deduplication on your Power System for use with IBM AIX®, IBM i, and Linux. It includes guidance for tuning parameters of Active Memory Deduplication and for troubleshooting issues.

This paper targets architects and consultants who need to understand how Active Memory Deduplication technology works to design performing solutions. The paper also targets technical specialists in charge of setting up and managing Active Memory Deduplication.

GENRE
Computers & Internet
RELEASED
2012
February 20
LANGUAGE
EN
English
LENGTH
98
Pages
PUBLISHER
IBM Redbooks
SELLER
International Business Machines Corp
SIZE
1.9
MB
IBM PowerVM Virtualization Active Memory Sharing IBM PowerVM Virtualization Active Memory Sharing
2011
IBM Power Systems Performance Guide: Implementing and Optimizing IBM Power Systems Performance Guide: Implementing and Optimizing
2013
IBM z/OS V2R2: Performance IBM z/OS V2R2: Performance
2015
Best Practices for DB2 on AIX 6.1 for POWER Systems Best Practices for DB2 on AIX 6.1 for POWER Systems
2015
Programming Persistent Memory Programming Persistent Memory
2020
Subsystem and Transaction Monitoring and Tuning with DB2 11 for z/OS Subsystem and Transaction Monitoring and Tuning with DB2 11 for z/OS
2022
TCP/IP Tutorial and Technical Overview TCP/IP Tutorial and Technical Overview
2006
Advanced Networking Concepts Applied Using Linux on IBM System z Advanced Networking Concepts Applied Using Linux on IBM System z
2012
IPv6 Introduction and Configuration IPv6 Introduction and Configuration
2012
Network Intrusion Prevention Design Guide: Using IBM Security Network IPS Network Intrusion Prevention Design Guide: Using IBM Security Network IPS
2011
IT Security Compliance Management Design Guide with IBM Tivoli Security Information and Event Manager IT Security Compliance Management Design Guide with IBM Tivoli Security Information and Event Manager
2010
IBM/Cisco Multiprotocol Routing: An Introduction and Implementation IBM/Cisco Multiprotocol Routing: An Introduction and Implementation
2009