Thecus N8900 series User Manual page 122

WARNING
Setting up the Primary unit for HA. Let's use the Primary unit from our
example PMA (172.16.66.25):
i. Login in to web UI of system 172.16.66.25. Then go to "High Availability" HA
configuration page under the Storage category.
ii. Click on "Enable" radio button, then the setting page will appear.
iii. Choose the server role of the system, for this example, we will have this unit
as 'Primary Server". So "Primary Server" is checked.
The HDD capacity of HA Secondary server
must be equal or greater than the Primary
server or a warning message will appear.
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