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  • Technology

Bringing Linux back to the Server BIOS with LinuxBoot

The NERF and Heads projects bring Linux back to the cloud servers’ boot ROMs by replacing nearly all of the vendor firmware with a reproducible built Linux runtime that acts as a fast, flexible, and measured boot loader.

  • Technology

Archival Storage at Two Sigma

The author presents CelFS, Two Sigma’s geo-distributed file system. Although CelFS has scaled to serve tens of petabytes of data, it uses physical partitioning to provide quality of service guarantees, it has a high replication overhead, and cannot take advantage of outsourced cold storage The talk further describes our response to these limitations in Jaks, a new storage system to reduce the TCO of CelFS and serve as the backend for other systems at Two Sigma.

  • Technology

Introduction to Head-to-Head Development, Part 1

Two Sigma’s development model consists of a unique blend of industry practices that combine to form a system that creates and implicit level of quality in all of the code we write. Here’s how we do it.