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MOTCLE	ABBREVIATION	DESCRIPTION
DFSMS	Data Facility Storage Management Subsystem	An operating environment that helps automate and centralize the management of storage. To manage storage, the storage management subsystem (SMS) provides the storage administrator with control over data class, storage class, management class, storage group, and automatic class selection (ACS) routine definitions
DFSMS		Data Facility Storage Management Subsystem
DFSMS		Data Facility Storage Management Subsystem. An element of z/OS and also available for z/VM, as DFSMS/VM. But it began life February 15, 1988, as an IBM term for its then-new approach to data management the notion that you will no longer need armies of systems programmers and data administrators to look after your data ? you simply tell the system about the storage, backup, performance and other requirements of the data, and the system does the rest for you. Then some bright boy in IBM mainframe software management realized that the company could save a bundle of money by packaging related software together, thereby avoiding the need to test every possible combination of supported version/release of each product together. He named his guinea pig DFSMS/MVS and it was announced May 19, 1992. It combined and replaced MVS/DFP, DFHSM, DFDSS and TLCS, as they had been previously known, renaming them DFSMSdfp, DFSMShsm, DFSMSdss and DFSMSrmm. The bundling concept worked so well that it was tri
DFSMS/MVS		An IBM licensed program that provides the complementary functions of DFSMSdfp, DFSMSdss, DFSMShsm, and DFSMSrmm, which, together with the Resource Access Control Facility (RACF), provide a system-managed, administrator-controlled, storage environment. Functions of DFSMS/MVS are included in z/OS
SMS		System Managed Storage. The philosophy of letting the computer system manage the storage of data rather than having it done by a human data administrator. The key benefit is that it provides device transparency ? i.e., it removes the need for the data user to know where or how the data is stored. IBM promised SMS for years but delivered little more than promises until DFSMS, which was a good deal more solid than earlier vagaries. Today, it is almost universally used in z/OS environments and some software will not work without it.

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dernière mise à jour le 19-04-2011 21-58-15 et contrôle validité url fait le 20-12-2009

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