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Offboard Storage Requirements for HA

You can implement high-availability (HA) when the JSA /store partition is mounted to an external storage solution, such as an iSCSI.

If you implement an external storage solution, the data that is received by the primary HA host is automatically moved to the external device. It remains accessible for searching and reporting.

If a failover occurs, the /store partition on the secondary HA host is automatically mounted to the external device. On the external device, it continues to read and write to the data received by the primary HA host before the failover.

For more information about configuring shared external storage with HA, see the Juniper Secure Analytics Configuring Offboard Storage Guide.

Administrators must review the following HA requirements before you implement an offboard storage device:

  • The primary HA host must be configured to communicate with the external device. The data in the /store partition of the local disk must be moved to the external storage device.

  • The secondary HA host must be configured to communicate with the external device. In doing so, when a primary HA host fails over, the secondary HA host can detect the external storage device.

  • You must create an HA cluster only after the secondary HA host is configured to access the same external storage device.

  • If you must reconfigure your external storage device or HA cluster settings, you must remove the HA cluster between the primary and secondary HA host. For more information, see Disconnecting an HA Cluster.

  • Ensure that there is at least a 1 Gbps connection between each HA host and your external device.


During an upgrade to JSA, you must reconfigure the external storage device connections to the hosts in your HA cluster. For more information, see the Juniper Secure Configuring Offboard Storage Guide.