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As the FSF (Free Software Foundation) claimed that there was a legal incompatibility between the CDDL and the GPL in 2005, Sun's implementation of the ZFS file system couldn't be used as a basis for the development of a module in the Linux kernel, couldn't be merged into the mainline Linux kernel, and Linux distributions generally did not include it as a precompiled kernel module.
ZFS (previously Zettabyte File System) is a file system with volume management capabilities. It began as part of the Sun Microsystems Solaris operating system in 2001. Large parts of Solaris, including ZFS, were published under an open source license as OpenSolaris for around 5 years from 2005 before being placed under a closed source license when Oracle Corporation acquired Sun in 2009–2010.
TrueNAS (formerly FreeNAS) is a family of network-attached storage (NAS) products produced by iXsystems, incorporating both open-source and commercial software. Based on the OpenZFS file system, TrueNAS runs on FreeBSD as well as Linux and is available under the BSD License.
The hope was due to Stratis configuration daemon being in userland, it would more quickly reach maturity versus the years of kernel level development of file systems ZFS and Btrfs. [ 2 ] [ 3 ] It is built upon enterprise-tested components LVM and XFS with over a decade of enterprise deployments and the lessons learned from System Storage ...
The Linux kernel has included Zstandard since November 2017 (version 4.14) as a compression method for the btrfs and squashfs filesystems. [16] [17] [18]In 2017, Allan Jude integrated Zstandard into the FreeBSD kernel, [19] and it was subsequently integrated as a compressor option for core dumps (both user programs and kernel panics).
Open source implementation called OpenBFS is used by the Haiku operating system. Byte File System (BFS) - file system used by z/VM for Unix applications; Btrfs – is a copy-on-write file system for Linux announced by Oracle in 2007 and published under the GNU General Public License (GPL). CFS – The Cluster File System from Veritas, a ...
However, the ZFS-Linux port of Lustre will be running ZFS's DMU (Data Management Unit) in userspace. [12] MinFS: MinFS is a fuse driver for Amazon S3 compatible object storage server. MinFS [13] lets you mount a remote bucket (from a S3 compatible object store), as if it were a local directory.
MDTs and OSTs currently use either an enhanced version of ext4 called ldiskfs, or ZFS/DMU for back-end data storage to store files/objects [85] using the open source ZFS-on-Linux port. [86] The client mounts the Lustre filesystem locally with a VFS driver for the Linux kernel that connects the client to the server(s).