Frequently Asked Question

To upgrade appliances configured in High Availability to a higher patch, you must meet the basic

upgrade prerequisites and go to the page Centralized Management of both appliances to make

sure that the High Availability configuration is properly set:

• One appliance must be the Master and have the Status OK

• The other appliance must be the Hot Standby and have the Status

• Both appliances must share the same HA UID.

• Both appliances must share the same version.

• There should be little to no Time drift between them.

Managed (remote).

• The page Centralized Management of the Master and the Hot Standby appliances must display

the same information

Below are the sample image.

Once you validated the Master and Hot Standby servers

Now check the storage of each of Servers by running the command on the cli
make sure that there is available space for firmware
# df -h /data1/exports

Upgrading appliances in High Availability must be performed from the Master appliance.
Until version 8.x, during the upgrade process:
1. The Hot Standby appliance was upgraded first. As upgrades stop and restart appliances, up
grading the Master first ensured that the appliances did not switch role and that the Master
appliance database was still available during the upgrade.

2. The Master appliance was upgraded once the Hot Standby upgrade was complete. Once the
Hot Standby was upgraded, the Master appliance could be stopped and restarted and no
switch was performed.

Since version 8.x, during the upgrade process:
1. The Master appliance is upgraded first. As the upgrade requires to stop and restart the
appliance, which would switch the appliances role, the automatic re-enrollment is ignored. In
addition, the Hot Standby appliance replication is stopped while its upgrade is scheduled.

2. The Hot Standby appliance is upgraded once the Master upgrade is complete. Once the
Master is upgraded, the Hot Standby appliance can be stopped and restarted for the upgrade.

This process ensures that the appliances do not switch roles and that the Hot Standby database
is available even during the upgrade. Note that: Once the appliances are upgraded, the page Services configuration might display different statuses as any service that was stopped is started when SOLIDserver reboots. Only disabled services are not started after an upgrade.