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%3cdiv style%3d%22float%3a left%3b line-height%3a 14px%3bfont-family%3a Verdana%3b font-size%3a 10pt%3b%22%3e%3cp%3ePurging JAMS history should be completely automated. When JAMS is initially installed%2c a job named JAMS_PURGE is created which is scheduled to run every Sunday. This job purges the JAMS History and then does a CONVERT/RECLAIM on the HIST.DAT file to reclaim space from the deleted records.%3c/p%3e%3cp%3eYou should verify that the JAMS_PURGE job is successfully running.%3c/p%3e%3cp%3eIf JAMS_PURGE is running%2c it could be that you%27re keeping more history than you want. You can adjust the default values for the parameters to JAMS_PURGE to change the amount of history you keep.%3c/p%3e%3cp%3eIt could also be that the HIST.DAT file grew so large because of an unusual event and the file is mostly free space. The JAMS_PURGE job won%27t shrink the physical size of the file. To shrink the file while preserving the history%2c do this%3a%3c/p%3e%3cp%3e%3cfont face%3d%22Courier New%22%3e%24 MCR JAMS_EXE%3aJAMS_MASTER STOP SCHEDULE/NORESTART%3cspan style%3d%22font-size%3a 4pt%3b%22%3e%3cp%3e%3c/p%3e%3c/span%3e%24 SET DEFAULT JAMS_DATA%3a%3cspan style%3d%22font-size%3a 4pt%3b%22%3e%3cp%3e%3c/p%3e%3c/span%3e%24 ANALYZE/RMS/FDL/OUTPUT%3dHISTOPT.FDL HIST.DAT%3cspan style%3d%22font-size%3a 4pt%3b%22%3e%3cp%3e%3c/p%3e%3c/span%3e%24 EDIT/FDL/NOINTERACTIVE/ANALYSIS%3dHISTOPT.FDL HISTOPT.FDL%3cspan style%3d%22font-size%3a 4pt%3b%22%3e%3cp%3e%3c/p%3e%3c/span%3e%24 CONVERT/FDL%3dHISTOPT.FDL/STATS/NOSORT HIST.DAT HIST.DAT%3cspan style%3d%22font-size%3a 4pt%3b%22%3e%3cp%3e%3c/p%3e%3c/span%3e%24 PURGE HIST.DAT%3cspan style%3d%22font-size%3a 4pt%3b%22%3e%3cp%3e%3c/p%3e%3c/span%3e%24 MCR JAMS_EXE%3aJAMS_MASTER START SCHEDULE%3c/font%3e%3c/p%3e%3cp%3eNote that this make take a LONG time.%3c/p%3e%3cp%3eIf you don%27t really care about the history and you just want to quickly shrink the file%2c do this%3a%3c/p%3e%3cp%3e%3cfont face%3d%22Courier New%22%3e%24 MCR JAMS_EXE%3aJAMS_MASTER STOP SCHEDULE/NORESTART%3cspan style%3d%22font-size%3a 4pt%3b%22%3e%3cp%3e%3c/p%3e%3c/span%3e%24 SET DEFAULT JAMS_DATA%3a%3cspan style%3d%22font-size%3a 4pt%3b%22%3e%3cp%3e%3c/p%3e%3c/span%3e%24 DELETE HIST.DAT%3b*%3cspan style%3d%22font-size%3a 4pt%3b%22%3e%3cp%3e%3c/p%3e%3c/span%3e%24 CREATE/FDL%3dHIST.FDL HIST.DAT%3cspan style%3d%22font-size%3a 4pt%3b%22%3e%3cp%3e%3c/p%3e%3c/span%3e%24 MCR JAMS_EXE%3aJAMS_MASTER START SCHEDULE%3c/font%3e%3c/p%3e%3cp%3eThis is quick but%2c %3cspan style%3d%22font-weight%3a bold%3b%22%3eIT WILL DELETE ALL OF YOUR HISTORY%3c/span%3e.%3cspan style%3d%22font-size%3a 4pt%3b%22%3e%3cp%3e%3c/p%3e%3c/span%3e%3c/p%3e%3cspan style%3d%22font-size%3a 4pt%3b%22%3e%3cp%3e%3c/p%3e%3c/span%3e%3cspan style%3d%22font-size%3a 4pt%3b%22%3e%3cp%3e%3c/p%3e%3c/span%3eMVP Systems - Support%3cbr /%3ehttp%3a//www.jamssupport.com/KnowledgebaseArticle50002.aspx%3c/div%3e
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