Field Notes

Short write-ups on networking, storage and small home-lab experiments.

Measuring latency without fooling yourself

Handshake time and request time are different numbers. A quick look at why the first one is usually flattering.

Cheap redundancy for a two-disk box

Notes on mirrored volumes, scrub schedules and what to monitor.

Why MTU matters on tunnels

Small packets work, large ones silently disappear. How to find the real path size.