Glossary

active.

A component that is performing work or is waiting to perform work.

active/active.

An architecture for high availability where all components are active and can assume extra work if another component fails.

active/passive.

An architecture for high availability where one or more components are idle, waiting to take over for another that fails.

actuator.

A mechanism in disk drives that rotates and moves disk arms across disk platters.

aggregation.

The combination of storage address spaces, making a larger space from multiple smaller storage address spaces.

allocation.

A file system process that selects the storage blocks to use in creating or updating a file.

appliance.

A special-purpose server or device that is easy to install and use. ...

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