Capacity monitoring

Content Platform for Cloud Scale Administration Guide

Version
2.6.x
File Size
1945 KB
Audience
anonymous
Part Number
MK-HCPCS008-10

You can monitor estimated available system-wide or per-storage component capacity.

The Storage page, in the Object Storage Management application, displays the total, used, and estimated available (free) capacity for HCP S Series Node storage components configured in the system, as well as the changes in the past week. If all the storage components are HCP S Series nodes, the page displays the total, used, and estimated available capacity of the entire system. You can set capacity threshold alarms that visually indicate, and can also send an alert message or email notification, if the capacity of an HCP S Series Node storage component, or the system as a whole, reaches a threshold. This page provides a single monitoring point for the entire HCP for cloud scale system, and the information displayed helps you with capacity planning.

Screenshot of capacity monitoring information displayed for storage components: cards for system total capacity, used capacity, and free capacity; a bar showing used versus free capacity for each HCP S Series Node storage component, with the bar over the warning threshold and displayed in red; and a graph of the number of active objects during thepast two hours.

The Metadata Gateway service periodically gathers storage component capacity metrics. If the used capacity for a single HCP S Series Node storage component or the entire system of HCP S Series Node storage components rises above a specified level, the system displays an alert. You can configure the alert threshold.

The calculation of used capacity includes:

  • HCP S Series Node storage components configured for capacity monitoring
  • Storage components set to read-only status
  • Storage components that are inactive

The calculation of available system capacity does not include:

  • HCP S Series Node storage components not configured for capacity monitoring
  • Storage components other than HCP S Series Node storage components
  • Storage components set to read-only status
  • Storage components that are inactive
Note: Metrics for capacity usage are for Metadata Gateway instances only, so adding used capacity to estimated available capacity will not equal the total capacity on the system. Also, multiple services are running on a system instance, and all sharing the disk capacity. Therefore, the available capacity for the Metadata Gateway service on one node can be consumed by a different service running on the same node.

Using capacity information, you can be alerted and take action if a storage component is reaching capacity. You can determine if the system can support an increase in stored data (for example, as expected from a new customer). You can understand the balance of usage and capacity across storage components. You can plan for the orderly addition of additional capacity.