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IBM functionally stabilized HFS starting with z/OS 1.7, in 2005. [6] The z/OS File System (zFS) was released as the higher performance successor to HFS in 1995, and IBM recommended migration from HFS to zFS. Following the release of zFS, z/OS releases included a tool, BPXWH2Z, to convert HFS to zFS. [7] IBM dropped the use of HFS in z/OS 2.5 ...
[5] Similarly to the mainframe version of VM/CMS, the VM/PC also created the illusion of virtual disks, but on the PC version these were maintained as PC DOS files, either on floppy or hard disk. For example, the CMS virtual disk belonging to user FRED at device address 101 was stored as the DOS file FRED.101.
An early version was called Structured Programming Facility (SPF) and introduced in SVS and MVS systems in 1974. [4] IBM chose the name because SPF was introduced about the same time as structured programming concepts. In 1979 IBM introduced a new version and a compatible product for CMS [5] under Virtual Machine Facility/370 Release 5.
As it is an assembly language, BAL uses the native instruction set of the IBM mainframe architecture on which it runs, System/360.. The successors to BAL use the native instruction sets of the IBM mainframe architectures on which they run, including System/360, System/370, System/370-XA, ESA/370, ESA/390, and z/Architecture.
CA-7 is a job scheduling / workflow automation software package sold by CA Technologies (formerly CA, Inc. and Computer Associates International, Inc.). [1] It is commonly used by banks [ 2 ] and other large enterprises with IBM mainframe IT computing platforms .
The Job Entry Subsystem (JES) is a component of IBM's MVS (MVS/370 through z/OS) mainframe operating systems that is responsible for managing batch workloads. In modern times, there are two distinct implementations of the Job Entry System called JES2 and JES3 .
The current product version is Librarian 4.4. [42] The 2022 book Modern Mainframe Development, published by O'Reilly Media, lists CA Librarian as one of the source control systems still in use by mainframe developers, along with a few others such as IBM Software Configuration and Library Manager and ChangeMan ZMF from Micro Focus. [41]
Hercules is a computer emulator allowing software written for IBM mainframe computers (System/370, System/390, and zSeries/System z) and for plug compatible mainframes (such as Amdahl machines) to run on other types of computer hardware, notably on low-cost personal computers. Development started in 1999 by Roger Bowler, a mainframe systems ...