Using the Geographic LVM in AIX 5L

The Geographic Logical Volume Manager (GLVM) is a new AIX 5L™ software-based technology for real time geographic data mirroring over standard TCP/IP networks. GLVM can help protect your business from a disaster by mirroring your mission-critical data to a remote disaster recovery site. If a disaster, such as a fire or flood, were to destroy the data at your production site, you would already have an up-to-date copy of the data at your disaster recovery site.

GLVM builds upon the AIX 5L Logical Volume Manager (LVM) to allow you to create a mirror copy of data at a geographically distant location. Because of its tight integration with LVM, users who are already familiar with LVM should find GLVM very easy to learn. You configure geographically distant disks as remote physical volumes and then combine those remote physical volumes with local physical volumes to form geographically mirrored volume groups. These are managed by LVM very much like ordinary volume groups.

GLVM was originally made available as part of the XD (Extended Distance) feature of HACMP™ for AIX 5L Version 5.2. The HACMP documentation refers to this technology as HACMP/XD for GLVM. The AIX 5L GLVM technology provides the same geographic data mirroring functionality as HACMP/XD for GLVM, only without the automated monitoring and recovery which is provided by HACMP. This technology is intended for users who need real time geographic data mirroring but do not require HACMP to automatically detect a disaster and move mission-critical applications to the disaster recovery site.

Formal user documentation for GLVM is provided with the HACMP product. The HACMP/XD for Geographic LVM: Planning and Administration Guide is available online at the following HACMP documentation page:

This book provides complete planning, installation, configuration and usage information for GLVM in an HACMP/XD environment. Using standalone GLVM in AIX 5L, apart from HACMP, is not covered in the above book. While many of the planning, configuration and usage steps are the same as for GLVM with HACMP/XD, there are a number of standalone procedures that are not covered in this book. This white paper provides some additional information you may find useful to manage a standalone GLVM configuration without HACMP.

Contact an IBM Sales Specialist

Browse Power Systems

Next generation applications for big data and analytics and cognitive computing are providing unprecedented insights into opportunities, threats and efficiencies. IBM Power Systems is at the forefront of delivering solutions to gain faster insights from analyzing both structured information and unstructured big data. With the secure, flexible and open platform of IBM Power Systems plus solutions and software, organizations can outpace their competitors by delivering faster services, providing differentiated offerings and turning operational cost into investment opportunity.

To draw insights and make better decisions, businesses rely on the secure, flexible and open platform of IBM Power Systems. Built with the first processor designed for big data workloads, the design of Power Systems combines the computing power, memory bandwidth and I/O in ways that are easier to consume and manage, building on strong resiliency, availability and security.

IBM Power Systems deliver flexibility and choice of operating systems to enable your business to support the next generation applications for big data and analytics and cognitive computing that are transforming how organizations work today. Whether running 1, 2, or all 3 - coupled with PowerVM, they maximize the benefit of Power Systems in your business.

Transform your business with Systems Software that enables virtualization, high availability, flexibility, security and compliance on Power Systems™. IBM’s integrated approach to developing Systems and Systems Software together delivers optimized results with Power Systems.

As an open innovation platform, Power Systems is optimized for big data and analytics performance and to deliver scale-out economics and security for the cloud. IBM and IBM Business Partner solutions exploit key capabilities in IBM Power Systems.

Over the last five years thousands of clients have migrated to IBM Power Systems for choice and flexibility. Learn how Power Systems has helped them revolutionize the way IT is developed and delivered, optimize for big data and analytics, and support private, public and hybrid offerings for scale-out or scale-up implementations all while improving business performance, reducing risk, and establishing a platform for growth.

Full text white paper