Concurrently Maintainable describes infrastructure in which any single capacity component or distribution path can be removed for planned maintenance or replacement without disrupting the IT load. It requires redundant components and independent distribution paths so that servicing one element leaves the load supported by another. It is the defining requirement of Uptime Institute Tier III.
Category: Resilience & Availability · Subcategory: Redundancy Topologies · Part of the AIDC Technical Terminology reference.