* Deploys collectd-iostat-python
* Exposes vars to determine disk and/or iostat plugin
* Dashboard for iostat metrics and on general dashboards
* Add inodes percent usage collection with df plugin
* Graph inodes % usage in dashboards
* Separate df from disk in dashboards
* Severity in collectd.log
iostat provides 18 metrics across disks and lvm devices
collectd disk plugin provides 10 metrics across disks
Provides more IO metrics than Collectd disk plugin
Change-Id: I9de36c53ebe62de6e50edf894ca74ce34f13e362
405207faa4