About the Discover Components App

The following information applies to Discover Components V16.

Do you need to install or update Discover Components? See Manage Applications for instructions about the App Store.

The Discover Components application is a fundamental component of StorNext Connect. StorNext Connect cannot work without it. The application relies on one or more name servers as a starting point to look up hostnames of clients and volumes (file systems) (it does not scan client IP addresses and ports). From there, Discover Components works to identify the topology of the StorNext environment. You use this application to discover StorNext components and assign them to StorNext environments.

Using the name server(s), Discover Components identifies the hosts of the workspace (cluster). Host is another name for the components or nodes that make up the workspace. Name servers, MDCs, and StorNext clients are all hosts.

The Discover Components application shows the following information about the hosts in the workspace.

Host name

Operating system

StorNext release

Volumes/File systems

NS

MDC

GW

Client

Why did discovery not find a host or volume?

Make sure:

Host Status

Host Status

The status of each host is displayed as one of the following icons.

Icon Description

This indicates that there are no issues and the host is operational.

This icon is displayed if any of the following occur:

This icon is displayed if any of the following occur:

  • snstatd is not correctly configured (see Error 1).
  • The name server does not match (see Error 2).
  • A service is not running (see Error 3).
  • A graphite error is occurring (see Error 4).

Rediscovery

Discovery is a point-in-time snapshot of the environment. The first discovery takes place during StorNext Connect installation. After making any changes to client systems (starting or stopping StorNext, adding clients, updating or downgrading StorNext client software, and so on), you must Rediscover. This ensures StorNext Connect recognizes clients by their current StorNext software version. Failure to do this may report the software revision that was on the client before the upgrade/downgrade. Similarly, without rediscovery after environment changes, StorNext Connect might not recognize all hosts in the StorNext Connect workspace, in which case data for those hosts will not appear in the monitoring applications.

To rediscover:

  1. Open Discover Components.
  2. Click Rediscover.
  3. Verify the name server(s) for the workspace (cluster). If needed, add or edit the name server(s).
  4. Click Discover.
  5. After discovery completes, click Continue to return to the main page of Discover Components.

Discover Components Application Concepts

Related Topics

About the Connector

Install the Connector on Clients