In the modern world, ZFS (z/OS file system) is a topic that has become relevant in today's society. Since its inception, ZFS (z/OS file system) has been the subject of debate, research and conflicting opinions. Over time, the importance of ZFS (z/OS file system) has increased, generating a significant impact on various aspects of daily life. In this article, we will explore in depth the different approaches and perspectives that exist around ZFS (z/OS file system), as well as its influence today. From its origins to contemporary implications, ZFS (z/OS file system) continues to be a topic of interest and reflection for a wide range of people and professionals. Through a detailed analysis, we aim to shed light on the most relevant aspects related to ZFS (z/OS file system), with the aim of enriching knowledge and encouraging informed debate about this phenomenon.
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Developer(s) | IBM |
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Full name | z/OS File System |
Introduced | 1995 with DCE DFS Local File System for MVS/ESA V5R2.2 |
Other | |
Supported operating systems | z/OS (all releases), OS/390 (all releases), MVS/ESA V5R2.2 |
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.
zFS technology was first released in 1995 as the Local File System, a lower layer of the DCE Distributed File System. It was available on MVS/ESA V5R2.2 and all OS/390 releases. DFS/LFS was provided as a part of the DCE feature, not part of the base operating system.
As a separate feature (outside the DCE feature), zFS was initially released for z/OS as PTFs (patches) for z/OS 1.2, with backports available for z/OS 1.1 and OS/390 2.10. Beginning with z/OS 1.3, zFS is included as a standard feature and is being actively developed.