TSM means "Time Series Machine". A time series is a set of measurements taken at various times.
/series/[stream]/measure/[timestamp]/[value] /series/[stream]/browse /series/[stream]/graph?args /series/[stream]/values/last?args /series/[stream]/values/csv /machine/streams/list /machine/streams/browse /series/test:stream1/measure/2007-06-13+16:30:00/123.45 : store "123.45" as the June 13th, 4:30pm measurement of the series test:series1 /series/test:stream1/graph : time-series image of of test:stream1 series /series/test1:stream1/browse : HTML interface to the test:stream1 series /series/test1:stream1/values/last?n=1 : fetch last measurement in test:stream1 series as HTML page /series/test1:stream1/values/last : fetch all measurements in test:stream1 series as HTML page /series/test1:stream1/csv : fetch all measurements in test:stream1 series stream as CSV /machine/streams/browse : browse all streams via HTML interface