Key-sequenced Data Set. One of the data set organizations supported by VSAM. The data is organized by the collating sequence of the key field.

Keyed Sequential Data Set - This is a type of VSAM (Virtual Sequential Access Method) data set. Records are in collating sequence by a key field and alternate indexes are allowed.

VSAM Key-Sequenced Data Set (KSDS), a keyed access file. The KSDS supports a primary index and optional alternate indexes. It supports the use of unique keys and, optionally, nonunique keys. Return to start of Glossary

KSDS, known onair as Jazz 88.3 is a San Diego, California radio station that plays a Jazz format and is owned by San Diego City College, although their antenna is located near their partner college, http://www.sdmesa.sdccd.cc.ca.us Mesa College, located north of San Diego. According to http://www.fcc.gov/fcc-bin/fmq?list=0&facid=58818 the FCC's information on KSDS-FM, Jazz 88.3 is undergoing a construction permit to increase their ERP to 22,000 watts, over the original ERP of 830 watts.