This post discusses power supply ‘holdup’, and how it can impact network or server hardware uptime. The holdup time or ‘output holdup time’ is the length of time that a given power supply can maintain output power to the switch or server after it’s input power supply has been cut. The dependent host will shut down if the power supply isn’t restored to the PSU before the hold-up time expires. I like to think of holdup time as a power buffer.
Engineers are often unstuck by poor planning and get hit with large financial penalties as a result. Projects can become mired in delays and complications due to unforeseen costs and expenses. There are some unavoidable bumps in the road, but most could be foreseen and eliminated in advance. I want to share a few tips based on some experiences I’ve had over the years. Continue reading
Why talk about network power connectors?
Here at Network Sherpa base camp, we’re all about removing confusion and saving time. I’ve always had a bit of difficulty differentiating between the connector types, PDU’s, inlets outlets and country specific power cords. In this post I share my learnings.
In the video below I focus on the commonly used low power IEC 320 series C13/14 connectors. If you want further detail or more info about other connectors, then check out NetworkingNerds’s great post on this topic.