Alerts
To ensure the continuous availability of the HCP repository, a strict majority of the HCP storage nodes must be running and healthy. For example, a six-node system requires at least four running nodes. If this condition is not true, namespaces cannot accept write requests, including requests to store new data or change object metadata.
At any given time, the unused HCP storage space must be sufficient to allow the creation of new objects and to ensure proper behavior in the event that a node fails.
The top section of the Overview page serves as an early warning system for violations of these requirements. It also reports system configuration issues and provides other system status information, such as notification that the system is rebalancing metadata. When the system is functioning normally, this section indicates that no problems exist.
The information in this section is represented by three categories of alert icons:
Hardware Status
Alerts in this category identify nodes that are reporting problems relating to drives, network interface cards (NICs), HCP S Series Node tiering, and other internal components.
System Status
Alerts in this category report on storage usage and indicate systemwide conditions such as a high rate of page swapping.
Object Integrity
Alerts in this category report on the state of object data and metadata. They also identify situations in which the protection or Content Verification service is fixing errors or has found errors it cannot fix.
The background color in an alert icon indicates the status of the relevant component:
- A green background indicates that the component is within normal operating parameters.
- An orange background indicates that the component is disabled or needs attention in some way. The text that accompanies icons with an orange background appears automatically below the icon area. This text may contain links to Console pages that you can use to view more information about the problem and, in some cases, change one or more specific configuration settings in order to resolve the problem. For example, the text may contain a network name that’s a link to the page on which you can view and change the IP configuration settings for that network.
- A red background indicates that the component is malfunctioning. The text that accompanies icons with a red background appears automatically below the icon area. This text may contain links to more information about the problem and, in some cases, change one or more specific configuration settings in order to resolve the problem. For example, the text may contain a node number that’s a link to more detailed information about a problem with the hardware on that node.
If the entire HCP system is read-only because of metadata unavailability, a message about the situation appears at the top of every System Management Console page. While the system is read-only, configuration changes and changes to namespace content are not allowed. Additionally, statistics that describe repository content might be inaccurate.
If the message says that the system has limited functionality and the situation persists, contact your HCP support center for help.