Business continuity and continuous application availability are among the top requirements for many organizations. Advances in virtualization, storage, and networking have made enhanced business continuity possible. Information technology solutions can now manage both planned and unplanned outages, and provide the flexibility and cost efficiencies that are available from cloud-computing models.

This IBM® Redpaper™ publication describes the following products and topics:

• IBM Spectrum™ Virtualize, which is the software that is at the core of the IBM SAN Volume Controller

• IBM Spectrum Scale, which was previously known as IBM General Parallel File System (GPFS™) or IBM Elastic Storage™

• IBM Spectrum Virtualize (SAN Volume Controller component) and IBM Spectrum Scale, which are together in an Enhanced Stretched Cluster (ESC)

• An example implementation

• Test results

• Preferred practices when using IBM Spectrum Virtualize and IBM Spectrum Scale together in an Enhanced Stretched Cluster

Introduction

IBM Spectrum Virtualize

SAN Volume Controller Enhanced Stretched Cluster solution

IBM Spectrum Scale

SAN Volume Controller Enhanced Stretched Cluster and IBM Spectrum Scale

Test scenarios and preferred practices