Record Management Services (RMS) are procedures in the VMS, RSTS/E, RT-11 and RSX-11M operating systems that programs may call to process files and records within files. [1] [2] Its file formats and procedures are similar to of those in some IBM access methods [a] for several of its mainframe computer operating systems [b] and by other vendors for file and record management. VMS RMS is an integral part of the system software; its procedures run in executive mode. [3] (RMS was not initially integrated into RT-11 and RSTS/E, but was available as an added charge "layered product". It was later added to RSTS/E and was a part of its standard documentation set.)
RMS supports four record access methods:
RMS supports four record formats:
Digital provided the File Definition Language (FDL) which could be used to define the structure of an RMS file. [4]
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