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 (optional).

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 criteria is good or badaspect is one of: Good / Waring / Error.
• Metrics are based on the Alerts feature subsystem of DPOD. :
  • The user can define which alerts are part of
  the system health
  • 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:In addition, there
  • 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] 
• • Device Availability Metric - This is an internal metric
  named
  • based on "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
  • 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.

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