Blog
Written by the engineers on the job.
Field notes, post-mortems and configuration guides. No product announcements, no reposted vendor marketing.
Camera placement: the four shots every site needs
4 September 2026
A surveillance system is judged on one afternoon — the day something happens and somebody asks for the footage. Most systems fail that day because of where the cameras point, not what they cost.
Read more about Camera placement: the four shots every site needsRAID is not a backup, and the day that becomes obvious
6 August 2026
RAID protects against one specific failure: a disk dying. It offers nothing at all against the four things that actually destroy data.
Read more about RAID is not a backup, and the day that becomes obviousSizing a UPS for a small server room
4 August 2026
Load, runtime and the mistake almost everybody makes with the number on the label. A UPS that is too small does not fail gracefully — it fails at the exact moment it was bought for.
Read more about Sizing a UPS for a small server roomReading a switch's error counters before anybody complains
24 July 2026
A link that is failing does not go down. It goes slow, intermittently, in a way that gets blamed on the application for months.
Read more about Reading a switch's error counters before anybody complainsThree, two, one — and what it actually costs
11 July 2026
The rule is quoted everywhere and implemented almost nowhere, because the second half is inconvenient and the third half costs money.
Read more about Three, two, one — and what it actually costsCable management is a maintenance decision, not a tidiness one
27 June 2026
A tidy rack looks like pride in the work. What it actually buys is the difference between a five-minute change and an outage.
Read more about Cable management is a maintenance decision, not a tidiness oneWhat an AMC should actually cover
12 June 2026
Most maintenance contracts are priced on response time and silent on the things that decide whether you ever need to invoke them.
Read more about What an AMC should actually coverPoE budgets: why the eighth camera fails
29 May 2026
Seven cameras work. The eighth is identical and does not. Nothing is faulty — the arithmetic ran out.
Read more about PoE budgets: why the eighth camera fails
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