(1) The permanent destination data set for IMS log records. The SLDS is usually on tape or MSS. In an IMS batch region, the SLDS is created at execution time. In an IMS online region, the SLDS is created by copying the online log data set to it by means of the Log Archive utility. See also online log data set, write-ahead data set.
(2) A data set on which IMS archives a full online log data set (OLDS). An SLDS can be on DASD or tape. The contents are used as input to the database recovery process. See also online log data set.