ublk

ublk: userspace block device driver

Rust libublk

Hardware-accelerated Linux kernel block driver and multi-tier memory cascade (ZRAM ➔ PCIe VRAM ➔ NVMe). Opportunistically leases idle GPU memory as a zero-allocation, revocable swap cache with sub-millisecond latency, zero SSD wear, and crash-safety on Linux & WSL2.

Fully Distributed Workload Scheduling and Cluster Management

Rust block device in userspace

Blkchnkr is a ublk server which creates a block device backed by an on demand allocated files.

The source for the Linux kernel used in Windows Subsystem for Linux 2 (WSL2) with CONFIG_BLK_DEV_UBLK and CONFIG_ZRAM_WRITEBACK enabled

A Golang wrapper of ubksrv library

Asynchronous IO replicator for block device

A high-performance C++23 library providing RAID0/1/10 support for Linux's userspace block (ublk) driver

Linux ublk block devices with the timing of real disks: HDD, SATA and NVMe SSD models, checked against datasheets and real drives

A Linux ublk (userspace block device) target that exposes an Azure Page Blob as a local block device

Write Linux ublk block-device targets in Ruby

Multi-tenant block I/O scheduler using Linux ublk with credit-based burst mechanism (similar to Amazon EBS gp2).

Linux module driver that supports opening block devices connected to userspace application working with the driver by using shared memory within UIO

A Rust SAN/NAS operating system for homelab hardware: DRAM write cache, log-structured consistency points, ublk block targets