dattobd | kernel module for taking block

dattobd is a C library typically used in Ansible applications. dattobd has no bugs, it has no vulnerabilities, it has a Strong Copyleft License and it has low support. You can download it from GitHub.

The Datto Block Driver (dattobd) solves the above problems and brings functionality similar to VSS on Windows to a broad range of Linux kernels. Dattobd is an open source Linux kernel module for point-in-time live snapshotting. Dattobd can be loaded onto a running Linux machine (without a reboot) and creates a COW file on the original volume representing any block device at the instant the snapshot is taken. After the first snapshot, the driver tracks incremental changes to the block device and therefore can be used to efficiently update existing backups by copying only the blocks that have changed. Dattobd is a true live-snapshotting system that will leave your root volume running and available, without requiring a reboot. Dattobd is designed to run on any linux device from small test virtual machines to live production servers with minimal impact on I/O or CPU performance. Since the driver works at the block layer, it supports most common filesystems including ext 2,3 and 4 and xfs (although filesystems with their own block device management systems such as ZFS and BTRFS can not be supported). All COW data is tracked in a file on the source block device itself, eliminating the need to have a spare volume in order to snapshot.