text: Title: Influxdb IO kills SD card for 3-4 months.
  Body: I already killed 3 SD cards for 1 year period. 
  
  ### Versions:
  
  Mycodo Version: 7.9.1
  Python Version: 3.7.3 (default, Apr 3 2019, 05:39:12) [GCC 8.2.0]
  Database Version: 8f9bf3fe5ec2
   - Raspberry Pi Version: [3B]
   - Raspbian OS Version: [Buster Lite]
  
  ### Reproducibility
  ![image](https://user-images.githubusercontent.com/805783/68040432-fa0f0500-fcd6-11e9-8bfc-057781a62a8a.png)
  
  I there some way to reduce SD card Usage?
  