About: Hierarchical File System (IBM MVS)

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IBM's Hierarchical File System (HFS) is a POSIX-style file system that IBM introduced on Feb 9, 1993 in MVS/ESA System Product Version 4 Release 3 OpenEdition with DFSMS/MVS Version 1 Release 2 for 3090 mainframes. On April 6, 1994, IBM introduced MVS/ESA System Product (MVS/ESA SP) Version 5 Release 1, which included MVS OpenEdition (MVS-OE), and hence HFS, as a standard component. IBM continued providing HFS through z/OS 2.4 for z System mainframes. IBM dropped HFS in z/OS 2.5.

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  • IBM's Hierarchical File System (HFS) is a POSIX-style file system that IBM introduced on Feb 9, 1993 in MVS/ESA System Product Version 4 Release 3 OpenEdition with DFSMS/MVS Version 1 Release 2 for 3090 mainframes. On April 6, 1994, IBM introduced MVS/ESA System Product (MVS/ESA SP) Version 5 Release 1, which included MVS OpenEdition (MVS-OE), and hence HFS, as a standard component. IBM continued providing HFS through z/OS 2.4 for z System mainframes. IBM functionally stabilized HFS starting with z/OS 1.7. The z/OS File System (zFS) is the higher performance successor to HFS, and IBM recommends migration from HFS to zFS. z/OS includes a tool, BPXWH2Z, to convert HFS to zFS. IBM dropped HFS in z/OS 2.5. (en)
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  • z/OS Hierarchical File System (en)
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  • 1993 (xsd:integer)
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  • DFSMS/MVS Version 1.2 for MVS/ESA (en)
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  • HFS (en)
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  • included in all releases of z/OS and OS/390; included in MVS/ESA V5R1 and higher, optional for V4R3 (en)
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  • IBM's Hierarchical File System (HFS) is a POSIX-style file system that IBM introduced on Feb 9, 1993 in MVS/ESA System Product Version 4 Release 3 OpenEdition with DFSMS/MVS Version 1 Release 2 for 3090 mainframes. On April 6, 1994, IBM introduced MVS/ESA System Product (MVS/ESA SP) Version 5 Release 1, which included MVS OpenEdition (MVS-OE), and hence HFS, as a standard component. IBM continued providing HFS through z/OS 2.4 for z System mainframes. IBM dropped HFS in z/OS 2.5. (en)
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  • Hierarchical File System (IBM MVS) (en)
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