Secondary member
The stack will not have a standby member by default. A secondary member can be configured from available members and it will be assigned the role of stack standby.
Member number 1 can never be configured as a secondary member.
When configured as secondary, a stack member that is already present in the stack will reboot and rejoin the stack as the standby.
A provisioned member can be configured as a secondary member. When the member joins the stack, it will boot up in the standby role, without any further reboot.
If a secondary member is already configured and physically present in the stack, removing the secondary will cause the secondary member to reboot and join as a member.
Refer to
vsf secondary-member for information about configuring a secondary member.
To change secondary configuration, first unconfigure the secondary, wait for the device to join as a member, and then configure a new secondary