blog.richardmcdougall.com

What happens when toddler curiosity meets ZFS?

It’s always entertaining and revealing to look at performance statistics in the frequency domain. Since most performance anomalies are driven by some regular external event, you can often learn about what might be causing repetitive performance or response time patterns. Here’s an interesting graph of the traffic to solarisinternals.com:

The traffic to the site is amazingly circadian — no surprise there.

So what caused the obvious dip on October 29? Here’s my confession — the youngest member of the mcdougallplex administrator team entered the server room, and couldn’t resist the big bright green light on the 5TB ZFS server Needless to say, the physical security perimeter has been increased…