Record Management Services

Record Management Services

Record Management Services (abbreviated RMS) are procedures in the VMS, RSTS/E, RT-11 and high-end RSX-11 operating systems that programs may call to process files and records within files. VMS RMS is an integral part of the system software; its procedures run in executive mode. (RMS was not integrated into RT-11 and RSTS/E, but was available as a "layered product".)

RMS supports four record access methods:
* Sequential Access
* Relative Record Number Access
* Record File Address Access
* Indexed Access

RMS supports four record formats:
* Fixed length
* Variable length
* Variable record length with fixed-length control blocks
* Stream files (records separated by termination characters)
** STREAM: Records terminated by CRLF
** STREAM_CR: Records terminated by CR
** STREAM_LF: Records terminated by LF

External links

* [http://h71000.www7.hp.com/doc/731FINAL/DOCUMENTATION/PDF/OVMS_731_RMS.PDF Official RMS documentation at HP]
* [http://www3.sympatico.ca/n.rieck/links/openvms_demos.html Free HP BASIC demo programs showing how to use RMS]


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