Virtual Storage Access Method (VSAM) is an IBM direct-access storage device (DASD) file storage access method, first used in the OS/VS1, OS/VS2 Release...
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ISAM (redirect from Indexed Sequential Access Method)
store. ISAM was replaced at IBM with a methodology called VSAM (virtual storage access method). Still later, IBM developed SQL/DS and then Db2 which IBM promotes...
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(LIOCS) sequential access method (SAM) direct access method (DAM) indexed sequential access method (ISAM) virtual storage access method (VSAM) Physical IOCS...
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sequential access method BPAM - Basic partitioned access method ISAM - Indexed sequential access method VSAM - Virtual storage access method, introduced...
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comparable with the Virtual Storage Access Method (VSAM), which was at that time a new and supposedly converged access method for disk storage. Originally, VTAM...
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granularity or access granularity. One common method to address these limits is to use multiple levels of virtualization. In several storage systems deployed...
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IBM computer operating systems Alternate index, for an IBM Virtual Storage Access Method key-sequenced data set Athens Internet Exchange, a European...
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applications to access different types of concrete file systems in a uniform way Storage hypervisor: the software that manages storage virtualization and combines...
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File system (redirect from File storage)
serves as a storage device for a file system. File systems such as tmpfs can store files in virtual memory. A virtual file system provides access to files...
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VSAM—Virtual Storage-Access Method VSAT—Very Small Aperture Terminal VT—Video Terminal VTL—Virtual Tape Library VTAM—Virtual Telecommunications Access Method VRAM—Video...
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least one direct access storage device. Although OS/360 itself was discontinued, successor operating systems, including the virtual storage MVS and the 64-bit...
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Support programs for OS/360 and successors (redirect from Access Method Services)
systems) for their data sets: IDCAMS ("Access Method Services") generates and modifies Virtual Storage Access Method (VSAM) and Non-VSAM datasets. IDCAMS...
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Disk image (redirect from Virtual disc emulator)
This method uses a PXE server to boot an operating system over a computer network that contains the necessary components to image or restore storage media...
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Entry-sequenced data set (category Computer storage stubs)
is a type of data set used by IBM's VSAM computer data storage system.: 5 Records are accessed based on their sequential order, that is, the order in...
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leak Virtual memory Memory protection Page address register Stable storage Static random-access memory (SRAM) Cloud storage Hybrid cloud storage Data...
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VM Virtual Storage Access Method (VSAM) – for IBM's z/OS and z/VSE mainframe operating systems Shared-disk file systems (also called shared-storage file...
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several notable caveats. Access to physical system resources (such as the network access, display, keyboard, and disk storage) is generally managed at...
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Extract, transform, load (section Virtual ETL)
System or other data structures such as Virtual Storage Access Method (VSAM) or Indexed Sequential Access Method (ISAM), or even formats fetched from outside...
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Linear data set (category Computer storage stubs)
[original research?] Data In Virtual (DIV) and Window services provide an alternative method to direct use of VSAM to access an LDS with a CI size of 4096...
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the UNIX System Services system log (syslogd) Entry-sequenced Virtual Storage Access Method (VSAM) cluster z/OS system log (SYSLOG) IBM Tivoli NetView for...
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client device that is used to access it. Desktop virtualization can be used in conjunction with application virtualization and user profile management systems...
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A storage area network (SAN) or storage network is a computer network which provides access to consolidated, block-level data storage. SANs are primarily...
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and TSO Native Files (AP111) APL2 Data File Processor (AP121) Virtual storage access method (VSAM) Files (AP123) Full Screen Display Manager (AP124) IBM...
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manage catalogs and other system information. Access Method Services - Process Virtual Storage Access Method (VSAM) and non-VSAM data sets. OS JCL is undeniably...
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Memory management (redirect from Dynamic storage)
size of the virtual address space beyond the available amount of RAM using paging or swapping to secondary storage. The quality of the virtual memory manager...
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the structure of an RMS file. Primarily BDAM BSAM ISAM QSAM Virtual Storage Access Method (VSAM) Primarily DOS/360 and successors through z/VSE OS/360...
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Non-volatile memory (redirect from Non-volatile storage)
data storage devices (e.g. disk storage, hard disk drives, optical discs, floppy disks, and magnetic tape), and early computer storage methods such as...
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Network-attached storage (NAS) is a file-level computer data storage server connected to a computer network providing data access to a heterogeneous group...
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random-access memory (RAM), or sent as compressed to auxiliary storage such as a hard disk drive (HDD) or solid-state drive (SSD). In both cases the virtual...
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Memory protection (redirect from Storage protection)
overall memory capacity. On some systems, a request for virtual storage may allocate a block of virtual addresses for which no page frames have been assigned...
18 KB (2,268 words) - 16:46, 24 January 2025