Glossary

PowerHA SystemMirror

PowerHA

IBM's OS-integrated high availability and disaster recovery clustering software for IBM i and AIX.

PowerHA licenses start around $4,495 with SMB implementation typically running $5,000-$20,000 and enterprise implementations $50,000 or more. IBM also offers metered, hourly-billed capacity for temporary or burst DR needs.

Related Terms

HA

High Availability, keeping a second system continuously synchronized so it can take over production workload within seconds to minutes of a failure.

DR

Disaster Recovery, the plan and infrastructure for restoring operations at a different site after a major outage.

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