Btrfsissä

Btrfs is a copy-on-write (COW) file system developed by Oracle Corporation. It was first released in October 2007, with the goal of creating a file system that was more efficient and reliable than traditional file systems such as ext3.

Btrfs has a number of features that make it a popular choice among Linux users, including support for snapshots, check sums, and a robust journaling system. It also supports a number of advanced features, including automatic block accounting and level 2 caching. Additionally, Btrfs includes several advanced features such as iologing and persistence of metadata across reboots.

One of the key components of Btrfs is its use of a disk volume to encode RAID structures on a per-disk basis. This allows for flexible disk configurations, including RAID 0, RAID 1, and RAID 10 configurations. Btrfs also supports online disk addition, removal, and marking of disks as "new" or "blacklisted".

Btrfs has been active in the development community, and is widely regarded as a leading candidate to replace older file systems such as ext3. Due to its redundancy features, however, it may not be the best choice for use on root filesystems. Nevertheless, it is a reliable and efficient file system that is worth considering for users who require a high level of data integrity.

Btrfs has undergone several point releases and changes, with new features and enhancements being added regularly. Efforts to integrate Btrfs with the Linux kernel have also been made, with the goal of making it a standard component of future Linux distributions. Overall, Btrfs is a well-regarded file system that offers a number of benefits to users and administrators alike.