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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.
The classic case for ZFS is the spin triplet, i.e., the S=1 spin system. In the presence of a magnetic field, the levels with different values of magnetic spin quantum number (M S =0,±1) are separated and the Zeeman splitting dictates their separation. In the absence of magnetic field, the 3 levels of the triplet are isoenergetic to the first ...
Oracle ZFS is Oracle's proprietary implementation of the ZFS file system and logical volume manager for Oracle Solaris. ZFS is a registered trademark belonging to Oracle. ZFS is a registered trademark belonging to Oracle.
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.
The following tables compare general and technical information for a number of file systems. General information ... zFS: IBM: 2001 z/OS (backported to OS/390 ...
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).
z/OS File System (zFS) (official name: z/OS® Distributed File Service zSeries® File System) is a POSIX-style hierarchical file system for IBM's z/OS operating system for z System mainframes, a successor to that operating system's HFS. [1]
ZFS: Yes Yes Yes Yes Yes Yes Yes A file system with integrated volume management illumos: ZFS: Yes Yes Yes Yes Yes Yes Yes A file system with integrated volume management Veritas [e] Cross-OS Veritas Volume Manager (VxVM) Yes Yes Yes Yes Yes Yes Refers to LVs as volumes, to VGs as disk groups; has variably-sized PEs called subdisks and LEs ...