Storage & Networking — LinSys Software
LinSys Software’s storage and networking practice covered Linux block layer, filesystems, network stack, and protocol-level engineering. This was core systems work — the layers of the operating system that determine how data moves through storage and across the network — and required deep familiarity with the Linux kernel internals.
Storage engineering work
- Block layer customization — request scheduling, queueing, multi-device handling
- Filesystem work — performance tuning of ext3/ext4, integration of specialized filesystems for embedded use, custom on-disk format development
- Storage driver development — SCSI/SAS/iSCSI initiators, custom block devices, RAID stack work
- Filesystem integrity tooling — LinSys’s CheckFS product (see CheckFS overview) emerged from this practice
Networking engineering work
- Network driver development — Ethernet, wireless, and specialized interconnect drivers
- Network stack customization — protocol-level changes, TCP/IP tuning, network namespace work
- Protocol implementation — implementing custom or specialized network protocols in the kernel and userspace
- Performance optimization — packet processing throughput, latency reduction, NUMA-aware networking
Why this work was specialized
Storage and networking sit at the intersection of three demanding domains: kernel programming (where the rules are stricter than userspace), hardware proximity (where you have to understand how the silicon behaves), and performance sensitivity (where small inefficiencies become large user-visible problems at scale). LinSys engineers contributed to both proprietary client products and upstream Linux work in these areas.
Modern equivalents
This work continues today, with evolution: NVMe replaced SATA/SAS for high-performance storage, io_uring rewrote async I/O semantics, eBPF transformed networking via XDP/TC, and DPDK pushed packet processing into userspace for ultra-high-throughput use cases. The fundamental engineering discipline — careful kernel programming, hardware-aware optimization, rigorous measurement — is unchanged.
Related services
Storage and networking engagements often combined with Performance Engineering for tuning work and Embedded Systems for hardware-adjacent driver development.
From the archive
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