Process Portal B Historian trending slowly and only a few days of data retreivable
For the past few months the trends have been updating slowly and now there is no data shown past about 3-5 days, was able to trend up to 30 days and more before in some cases. Rebooting the historian server did nothing to help. The Server has been in service for about 6 years and has redundant raid drives.
C drive used space 113GB and free space 22.3GB
D drive used space 90.5 GB and free space 188 GB