# colocation

Published articles for colocation.

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## What N, N+1, 2N, and 2(N+1) Mean in a Data Center

DevFeed: [What N, N+1, 2N, and 2(N+1) Mean in a Data Center](<https://devfeed.tech/articles/what-n-n-1-2n-and-2-n-1-mean-in-a-data-center-40160.md>)

Original publisher: [Read original article](<https://blog.j2sw.com/netops/data-center-redundancy-n-n1-2n/>)

Author: j2sw

Published: 2026-08-27T13:59:08Z

Content type: tutorial

Language: en

Sources: [Justin Wilson (j2sw)](<https://devfeed.tech/sources/justin-wilson-j2sw.md>)

Topics: [datacenter](<https://devfeed.tech/topics/datacenter.md>), [data](<https://devfeed.tech/topics/data.md>)

Tags: [2n-redundancy](<https://devfeed.tech/tags/2n-redundancy.md>), [capacity](<https://devfeed.tech/tags/capacity.md>), [colocation](<https://devfeed.tech/tags/colocation.md>), [components](<https://devfeed.tech/tags/components.md>), [cooling](<https://devfeed.tech/tags/cooling.md>), [data-center](<https://devfeed.tech/tags/data-center.md>), [data-center-power](<https://devfeed.tech/tags/data-center-power.md>), [equipment](<https://devfeed.tech/tags/equipment.md>), [internet-architecture](<https://devfeed.tech/tags/internet-architecture.md>), [maintenance](<https://devfeed.tech/tags/maintenance.md>), [n-plus-1-redundancy](<https://devfeed.tech/tags/n-plus-1-redundancy.md>), [network-operations](<https://devfeed.tech/tags/network-operations.md>), [power-distribution](<https://devfeed.tech/tags/power-distribution.md>), [system](<https://devfeed.tech/tags/system.md>), [ups](<https://devfeed.tech/tags/ups.md>)

### AI overview

This article explains what data center redundancy ratings N, N+1, N+2, 2N, and 2(N+1) indicate about component capacity, failures, maintenance, cooling, and alternate paths.

### Source excerpt

Have you ever looked at a data center marketing slick and wondered what N, N+1, 2N, and 2(N+1) actually mean? The main thing they tell you is how many components can fail before the system drops below the capacity needed to support the load. When I evaluate a data center, I want to know what ... Read more The post What N, N+1, 2N, and 2(N+1) Mean in a Data Center appeared first on Justin Wilson (j2sw).

## What makes a good data center?

DevFeed: [What makes a good data center?](<https://devfeed.tech/articles/what-makes-a-good-data-center-40197.md>)

Original publisher: [Read original article](<https://blog.j2sw.com/technology/what-makes-a-good-data-center/>)

Author: j2sw

Published: 2026-06-22T11:25:00Z

Content type: opinion

Language: en

Sources: [Justin Wilson (j2sw)](<https://devfeed.tech/sources/justin-wilson-j2sw.md>)

Topics: [datacenter](<https://devfeed.tech/topics/datacenter.md>), [Monitoring](<https://devfeed.tech/topics/monitoring.md>), [IXP](<https://devfeed.tech/topics/ixp.md>)

Tags: [colocation](<https://devfeed.tech/tags/colocation.md>), [cooling](<https://devfeed.tech/tags/cooling.md>), [data-center](<https://devfeed.tech/tags/data-center.md>), [dc](<https://devfeed.tech/tags/dc.md>), [infrastructure](<https://devfeed.tech/tags/infrastructure.md>), [ixp](<https://devfeed.tech/tags/ixp.md>), [monitoring](<https://devfeed.tech/tags/monitoring.md>), [network-operations](<https://devfeed.tech/tags/network-operations.md>), [power](<https://devfeed.tech/tags/power.md>), [remote](<https://devfeed.tech/tags/remote.md>), [technology-industry-commentary](<https://devfeed.tech/tags/technology-industry-commentary.md>)

### AI overview

The article presents a personal, surface-level framework for evaluating data centers, focusing on power redundancy, cooling and temperature monitoring, carrier diversity, interconnection neutrality, and physically diverse carrier routes.

### Source excerpt

A good data center is not about lobby photos or vendor language. It is about clean power, working cooling, clear cable paths, useful remote hands, and gear that can be repaired without fighting the building. The post What makes a good data center? appeared first on Justin Wilson (j2sw).