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Status Of HA Hosts

 

You can review the status of the primary and secondary host in your high-availability (HA) cluster.

The following table describes the status of each host that is displayed in the System and License Management window:

Table 1: HA Status Descriptions

Status

Description

Active

Specifies that the host is the active system and that all services are running normally. The primary or secondary HA host can display the active status.

Note: If the secondary HA host displays the active status, the primary HA host failed.

Standby

Specifies that the host is acting as the standby system. In the standby state, no services are running but data is synchronized if disk replication is enabled. If the primary or secondary HA host fails, the standby system automatically becomes the active system.

Failed

Specifies that the primary or secondary host failed.

If the primary HA host displays Failed, the secondary HA host assumes the responsibilities of the primary HA host and displays the Active status.

If the secondary HA host displays Failed, the primary HA host remains active, but is not protected by HA.

A system in a failed state must be manually repaired or replaced, and then restored. If the network fails, you might need access to the physical appliance.

Synchronizing

Specifies that data is synchronizing between hosts.

Note: This status is displayed only when disk replication is enabled.

Online

Specifies that the host is online.

Offline

Specifies that an administrator manually set the HA host offline. Offline mode indicates a state that is typically used to complete appliance maintenance.

When an appliance indicates a status of offline:

Data replication is functioning between the active and offline HA hosts.

Services that process events, flows, offenses, and heartbeat ping tests are stopped for the offline HA host.

Failover cannot occur until the administrator sets the HA host online.

Restoring

Specifies that the host is restoring. For more information, see Verifying the Status Of Primary and Secondary Hosts.

Needs License

Specifies that a license key is required for the HA cluster. In this state, no processes are running.

For more information about applying a license key, see your Administration Guide.

Setting Offline

Specifies that an administrator is changing the status of an HA host to offline.

Setting Online

Specifies that an administrator is changing the status of an HA host to online

Needs Upgrade

Specifies that the secondary HA host requires a software upgrade.

When the Needs Upgrade status is displayed, the primary remains active, but is not protected against failover. Disk replication of events and flows continues between the primary and the secondary HA hosts.

Upgrading

Specifies that the secondary HA host is being upgraded by the primary HA host.

If the secondary HA host displays the Upgrading status, the primary HA host remains active, but is not protected by HA. Heartbeat monitoring and disk replication, if enabled, continue to function.

After DSMs or protocols are installed and deployed on a Console, the Console replicates the DSM and protocol updates to its managed hosts. When primary and secondary HA hosts are synchronized, the DSM and protocols updates are installed on the secondary HA host.

Only a secondary HA host can display an Upgrading status.