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, optionally divided into device groups.

In addition, the dashboard displays the DPOD health state based on Internal Health Alerts.

Metrics

• The health of each device is based on several user-defined metrics. For example, the CPU of the device.
• A metric is basically a criteria and a set of thresholds that together define whether the state of the device in that aspect is one of: Good / Waring / Error.
• Metrics are based on the Alerts subsystem of DPOD:
  • The user can define which alerts are part of the System Health by selecting the "System Health Metric" option under [Manage → Alert → Setup Alerts →  Edit Alert].
  • Each alert can be used as a simple alert, as a System Health metric, or both. Using an alert both for alerting and as a System Health metric is recommended, since it makes sure the System Health dashboard will precisely reflect the sent alerts.
• 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
  • Device Availability Metric - This is an internal metric based on "Device Resources Monitoring" option selected at the device level, that checks whether the device is available or not.

Prerequisites:

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:

• "System Health Dashboard Sample Time Range (min.)" - default to 5 minutes.

Device Card:

• 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	-

• Clicking a device card should direct to the device health dashboard

• 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