Today I upgraded the DAQ for the new Mechanical Room (MR) vacuum controls upgrade. The current active raw minute trend files were copied on h1tw1, the channel names were changed in the H0EDCU_VE.ini file (there are no FMCS channels on this system) and the DAQ was restarted.
Later I renamed all the archive raw minutre trend files on both h1fw0 and h1fw1 and verified using dataviewer and one channel from MX and MR that trends back 300 days could be obtained.