Termos e Definições - S

SAD - Stand Alone DUMP:
SAD é um programa executado através do HMC que captura informações gerais de OUTPUTS de todo o sistema (Memória, Task, Spool, etc), essas informações são gravadas em disco com o intuito de análise.

System Management Facilities (SMF), a standard feature of MVS, consists of system routines and optional user-written routines that collect, format and record system and job-related information. An installation can use this information to evaluate system workload, configuration and paging activity.

Definição no VM
O SPOOL é uma área temporária em disco que é composta dos arquivos de Reader, Printer e Punch.

SAA (Systems Application Architecture)
IBM's name for the architecture once intended to unify its disparate computer architectures.

SDLC (Synchronous Data Link Control)
An IBM-defined protocol used for serial (by bit) information transfer over a data communications channel. Concerned with the lower two layers of the Open Systems Interconnection (OSI) model (the physical and data link layers), SDLC was part of IBM's Systems Network Architecture (SNA) attack on the diverse link controls, access methods and terminal types that existed in the pre-SNA era. See SNA and OSI.

SNA (Systems Network Architecture)
An IBM-developed network architecture, with layers similar to those of the Open Systems Interconnection (OSI) network reference model (see OSI). The layers isolate applications from system network services, enabling users to write applications independent of the lower networking layers.

SSA (Serial Storage Architecture)
An IBM architecture for disk subsystems. For most purposes, it is a single-source, proprietary interface, especially useful for users who have standardized on RS/6000 systems with applications that require very high data rates that are not particularly cache-friendly.

SVA (Shared Virtual Array)
A direct-access storage device (DASD) product introduced by Storage Technology (StorageTek) in 1999. SVA is based on the same technology as the RAMAC Virtual Array, an IBM-branded storage system for which StorageTek served as the original equipment manufacturer.

A system complex of closely coupled processors in an IBM clustered-computing system. See Parallel Sysplex.

The family of IBM mainframe-class computers that preceded the System/390. See System/390.

IBM's processor family announced in September 1990, which replaced the System/370 family. System/390 (S/390) family included the ES/9000 mainframes. IBM re-branded and upgraded its S/390 mainframe-class computers as the "zSeries" in 2000. See zSeries

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