Definition of Terms


Definition: Data Center Automation (DCA)

Consists of the processes and procedures implemented in a data center environment for the purpose of automating day-to-day activities. These automated activities consist of the following:

Additional Information

Definition: Business Continuity (BC)

Consists of the activities performed on a daily basis to ensure the business operates normally today, tomorrow, and beyond. Business continuity is sometimes confused with disaster recovery, but they are separate entities. Disaster recovery is a small subset of business continuity. The business continuity plan may be thought of as a methodology, or as an enterprise wide mentality of conducting day-to-day business.

The components of the business continuity plan and methodology are:

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Definition: Disaster Recovery (DR)

The implementation of a project plan which describes the tasks necessary to recover critical business functions after a disaster. The recovery occurs between geographically separated data centers using one or more methods of storage replication between the data centers.

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Definition: High Availability (HA)

An automated process for minimizing business function downtime associated with planned or unplanned outages. Typically utilizes replicated hardware platforms to eliminate single points of failure. The business function fail-over normally occurs between two or more physical frames within the same data center using a single shared storage system.

Additional Information

Definition: Business Impact Analysis (BIA)

An examination of ALL business functions to determine those regarded as critical. Should be conducted as a workshop involving executive management and all departments in an organization, this is NOT an information technology activity.

Definition: Service Level Agreement (SLA)

An agreement between a business function owner and the service provider which designates the amount of time, on an annualized basis, the business function will be available. Conversely, the SLA also designates the amount of time, on an annualized basis, for which the business function will NOT be available.

This should not be regarded as allowable downtime, but rather as mandatory downtime that requires management approval to reschedule.

The SLA is associated with a business function, not with any particular machine, system, or frame.

Definition: Enterprise Wide Unique (EWU)

Refers to a parameter that has one distinct value across any or all platforms throughout the entire enterprise.

Definition: Frame

A physical computing device, which may host one or more partitions or logical systems.

Definition: Partition (LPAR)

A logical grouping of resources such as CPU, Memory, network and SAN adapters

Definition: CPU

Definition: Memory

Definition: Virtual I/O (VIO)

Definition: Live Partition Mobility (LPM)

Definition: Network Installation Manager (NIM)

Definition: Partition Load Manager (PLM)