November 2024

Replacing batteries Eaton 5PX – 5PX2200RT & 5PXEBM48RT

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NOTE: the images in this blog post were broken. As of 2024-12-01 1600 UTC, they are fixed. Sorry about that. Two useful links for future me: https://caniuse.com/?search=HEIC https://urlscan.io/result/31b29ced-bf41-415c-994e-df6ec532cb29/ The time arrived this morning. The batteries were charged up. I had most of the day to myself. It was time to replace the batteries. Elapsed time […]

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Optimizing UPS power use when the power goes out

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This post is mostly for myself. I’m just putting my Sunday morning thoughts down for later review and consideration. When Selecting replacements batteries for my Eaton 5PX UPS (5PX2200RT & 5PXEBM48RT), I began to think about: when the power goes off, why can’t I keep using my laptop? Usually, I still have an Internet connection:

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Selecting replacements batteries for my Eaton 5PX UPS (5PX2200RT & 5PXEBM48RT)

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Both nut and Nagios are telling me: replace my batteries. Fair enough. The UPS (5PX2200RT) and the external battery pack (5PXEBM48RT) were installed and configured with nut four years and two months ago. It’s time. Usually, I buy compatible third party batteries. Looking at video and images, I’m seeing these units use batteries in a

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Loading up an old copy of a PostgreSQL database, zfs snapshots, and sanoid snapshot management

Leave a Comment / FreeBSD, Open Source, PostgreSQL, sanoid, snapshots, ZFS / By /

Sometimes you want to go back to a known good state. And you want to do it quickly, without waiting around. In my case, that’s going to be a zfs snapshot. Today I am preparing to test some code changes so that FreshPorts properly creates a new category. See these recent blog posts for details:

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dma: could not pick up queue file

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see https://lists.freebsd.org/archives/freebsd-questions/2024-October/005877.html for the full archive. A while back, I changed my FreeBSD jails from using postfix to using dma. I like postfix, but I don’t want to maintain the app in so many locations. dma is less work. I wrote a short blog post about configuring dma and also blogged about replacing postfix with

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