Chandra noticed some strange dataviewer plots when asking for long look-back minute trends (see attached). After some investigation, I found:

• minute trend data from h1nds1 only goes back to 26 May 2017
• plotting error only occurs when asking for data beyond this date
• vertex of the squiggles is 18 Oct 2017

The problem is with h1nds1's configuration of archived raw minute trends. The most recent archive spans the dates 5/26 to 10/18. The older archives are not being accessed, which I think is a result of my reordering the archived directories in the daqdrc file. After Dan and I had moved all the minute trends to their own RAID, I noticed that raw minute trends are ordered oldest-to-most-recent which would not be efficient since most data requests are for recent (within the last year). I reordered the list to most-recent-to-oldest and now only the most-recent directory is being read. When we are able to restart the NDS, I'll reverse the order to verify this. In the mean time, minute trends before 5/26/2017 are unavailable.