Cloudflare1d ago
How we reduced core unit boot time from hours to minutes
Cloudflare engineers tackled a critical issue of prolonged core unit boot times, which affected nearly 2,000 Gen12 units, after a routine firmware update caused some servers to take four hours to reboot instead of minutes. They identified the problem as a firmware quirk that led to a linear search through every network boot interface, wasting minutes due to timeout responses. To resolve this, they restructured the boot automation workflow to declare the correct network boot interface upfront, eliminating the guesswork and reducing total boot time from four hours to minutes.
NetworkingSecurity
1 min