The StorageGRID alarm system is a legacy system used to identify trouble spots that sometimes occur during normal operation. Alarms can be triggered if attributes meet certain conditions or exceed configured thresholds.
Alarm severity levels
Alarms are organized into a hierarchy of five severity levels from Normal (no alarm or notification) to Critical. The two service state notifications indicate when a node becomes disconnected from the grid.
| Icon | Node state | Alarm severity | Meaning |
|---|---|---|---|
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Connected | Normal | The node is functioning normally. It is connected to the grid and there are no alarms. |
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Connected | Notice | The node is connected to the grid, but an unusual condition exists that does not affect normal operations. |
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Connected | Minor | The node is connected to the grid, but an abnormal condition exists that could affect operation in the future. You should investigate to prevent escalation. |
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Connected | Major | The node is connected to the grid, but an abnormal condition exists that currently affects operation. This requires prompt attention to prevent escalation. |
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Connected | Critical | The node is connected to the grid, but an abnormal condition exists that has stopped normal operations. You should address the issue immediately. |
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Disconnected | Administratively Down | The node is not connected to the grid for an expected reason. For example, the node, or services on the node, has been gracefully shut down, the node is rebooting, or the software is being upgraded. |
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Disconnected | Unknown | The node is not connected to the grid. This situation requires immediate attentionFor example, the network connection between nodes has been lost or the power is down. This is the most severe condition. Note: You might see transient blue nodes during managed shutdown operations. You can ignore these alarms.
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Alarm classes
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Default alarms are the alarms provided with each StorageGRID system. Each default alarm tracks the value of a specific attribute. For example, the AMQS (Audit Messages Queued) Default alarm tracks the count of messages in the audit message queue at any given time. This alarm is triggered at different severities when the number of queued messages reaches certain threshold values.
Default alarms cannot be modified. However, you can disable Default alarms or override them by defining Global Custom alarms.
- Global Custom alarms monitor the status of all services of a given type in the StorageGRID system. You can create a Global Custom alarm to override a Default alarm system-wide. You can also create a new Global Custom alarm that will monitor status system-wide. This can be useful for monitoring any customized conditions of your StorageGRID system.