The System Health dashboard provides an overview of all devices health state based on user-defined metrics.

The dashboard is composed of multiple cards, each representing the health of a device, divided into device groups (optional).

In addition, the dashboard displays the DPOD health state.

Metrics

The health of each device is based on several user-defined metrics.
A metric is basically a criteria and a set of thresholds that define whether the state of that criteria is good or bad.
Metrics are based on the Alerts feature of DPOD. The user can define which alerts are part of the system health.
The following System Health metrics are defined by default:
- Devices CPU Metric
- Devices Memory Metric
- Devices Load Metric
- Devices Fan Metric
- Devices Temperature Metric
- Devices Voltage Metric
- Devices Space Encrypted Metric
- Devices Space Temp Metric
- Devices Space Internal Metric
- System Errors Metric
The user can define whether a metric is part of the system health by selecting the "System Health Metric" option
- The user may edit the metric setting from [Manage → Alert → Setup Alerts → Edit Alert]
In addition, there is an internal metric named "Device Availability" which is not editable, the purpose of this metric is to sample the device availability.

Assumptions:

The existing alerts infrastructure (with additional few more fields) will provide all data and logic to decide if a sample should be alerted and if it considers an error or warning or good.
The alerts mechanism will be the only source of current and future metrics. New fields: Is alert used as health metric, warning threshold, damage points
Any health metric must be based on a detailed investigation screen

Metric:

Device Health Settings:

For each device, the user can define whether the device is displayed in the System Health dashboard, Damage Points Threshold, Total Warnings Threshold
For each device, the user can set thresholds and damage points per health metric. - see device health settings

Device Group Settings:

For each device, the user can define the device group and the display order - see device group settings

System Parameters (DB) - default values for:

A single device card - includes:
- Health states of the past hour divided to 5 parts, last X minutes and 4 parts of 15 minutes:

Icon	description	last X minutes(System Parameter)	4 parts of 15 minutes
	Good	If no Errors or Warnings found in metric samples	If no Errors or Warnings found in metric samples
	Warning	If warning exists	If warning exists
	Error	If error exists If no errors found but some warning exists then If total damage points for all metrics is bigger than the damage points for a device to sustain. If total of warning is bigger than number of warning found for a device	If error exists If no errors found but some warning exists then If total damage points for all metrics is bigger than the damage points for a device to sustain. If total of warning is bigger than number of warning found for a device
	No metrics samples	-	If no metric samples found If all "Device Availability" metric samples are Error
+ background color of card is red	Critical	If no metric samples found If all "Device Availability" metric samples are Error If the "Device Availability" metric last sample is Error	-

Device Health Dashboard (drill-down)
- A series of charts to display metric values per device - each metric with its own chart over time
  - Each chart is of "Scatter" type, divided to 4 parts (each part represents 15 minutes)
  - Each point in the graph should display the right color (green for Good, red for Error etc.) and display the value in the tooltip of the point
  - All points should overlap a little so the display is compact and looks like a thick line built of points:
  - Clicking on a metric graph will dispatch the user to further investigation in one of the product existing analytics dashboards