About This Book

As organizations rely more and more on computer applications, it is vital to make databases as available and reliable as possible. This guide explains the many mechanisms that Caché provides to maintain a highly available and reliable system. It describes strategies for recovering quickly from system failures while maintaining the integrity of your data.

There are mechanisms available to maintain high availability, including mirroring, shadowing and various recommended failover strategies involving Caché ECP (Enterprise Cache Protocol) and clustering. The networking capabilities of Caché can be customized to allow cluster failover.

The following topics are addressed:

• System Failover Strategies

• ECP and High Availability

• Mirroring

This guide also contains the following platform-specific appendixes:

• Using Red Hat Enterprise Linux HA with Caché

• Using Pacemaker-based Red Hat Enterprise Linux HA with Caché

  Note:

  The first Red Hat Enterprise Linux HA appendix is for use with RHEL versions prior to release 7; the Pacemaker-based appendix is for use with RHEL 7.

• Using IBM PowerHA SystemMirror with Caché

• Using HP ServiceGuard with Caché

• Using Veritas Cluster Server for Linux with Caché

• Using Windows Clusters with Caché

For detailed information, see the Table of Contents.

For general information, see Using InterSystems Documentation.