Spatial Load Format. The format used to load data into spatial tables in a previous version of Spatial Data Option. Loading is now accomplished with the standard SQL*Loader.
Server log file. The host file produced by DB2SERVE (or DB2WIPSV) for subsequent processing by PerfMan Server. The host file produced by programs ISMVTS (for IBM VTS and libraries) and ISMVSM (for STK Nearline and VSM).
Super Low Frequency. Frequency band in the range of 30 - 300 Hz, corresponding to wavelength from 10,000 km to 1,000 km. SLF band overlaps audio frequencies. AC power grids also have frequencies within this range, i.e. 50 Hz and 60 Hz.