data set organization การใช้

• Access method depends on the given data set organization.
• A "'Relative Record Data Set "'( RRDS ) is a type of data set organization used by the VSAM computer data storage system.
• Data sets are not unstructured streams of bytes, but rather are organized in various logical record and block structures determined by the DSORG ( data set organization ), RECFM ( record format ), and other parameters.
• While each of these data set organizations have alternatives, each has a distinct set of advantages, whether in the area of performance, space saving ( through hardware-assisted data compression ), or scalability ( by allowing an individual data set to exceed 4 GiB ).