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High Availability
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SonicOS 5.8.1 Administrator Guide
instead of HA. When the HA interfaces are not connected or the link is down, the field
displays the status in the form X5 No Link. When High Availability is not enabled, the field
displays Disabled.
• Found Backup - Indicates Yes if the Primary appliance has detected the Backup
appliance, and No if there is no HA link or if the Backup is rebooting. This field is labeled
Found Primary when viewed on the Backup appliance, and indicates Yes if the Backup
appliance has detected the Primary appliance, and No if there is no HA link or if the Primary
is rebooting.
• Settings Synchronized - Indicates if the settings are synchronized between the two
appliances. This includes all settings that are part of the system preferences, for example,
NAT policies, routes, user accounts. Possible values are Yes or No.
• Primary Stateful HA Licensed - Indicates if the Primary appliance has a stateful HA
license. Possible values are Yes or No.
• Backup Stateful HA Licensed - Indicates if the Backup appliance has a stateful HA
license. Possible values are Yes or No. Note that the Stateful HA license is shared with the
Primary, but that you must access mysonicwall.com while logged into the LAN
management IP address of the Backup unit in order to synchronize with the SonicWALL
licensing server.
• Stateful HA Synchronized - Indicates if the Idle appliance is synchronized with the initial
state of the Active appliance (TCP sessions, VPN tunnels) when they discover each other. The
possible values are Yes and No. No could mean that the stateful synchronization process for
the initial state is in progress. Note that No is also displayed if Stateful HA is not enabled or
licensed on either of the units.
• Primary State - Indicates the current state of the Primary appliance as a member of an HA
Pair. The Primary State field is displayed on both the Primary and the Backup appliances.
The possible values are:
–
ACTIVE – Indicates that the Primary unit is handling all the network traffic except
management/monitoring/licensing traffic destined to the IDLE unit.
–
IDLE – Indicates that the Primary unit is passive and is ready to take over on a failover.
–
ELECTION – Indicates that the Primary and Backup units are negotiating which should
be the ACTIVE unit.
–
SYNC – Indicates that the Primary unit is synchronizing settings or firmware to the
Backup.
–
ERROR – Indicates that the Primary unit has reached an error condition.
–
REBOOT – Indicates that the Primary unit is rebooting.
–
NONE – When viewed on the Primary unit, NONE indicates that HA is not enabled on
the Primary. When viewed on the Backup unit, NONE indicates that the Backup unit is
not receiving heartbeats from the Primary unit.
• Backup State - Indicates the current state of the Backup appliance as a member of an HA
Pair. The Backup State field is displayed on both the Primary and the Backup appliances.
The possible values are:
–
ACTIVE – Indicates that the Backup unit is handling all the network traffic except
management/monitoring/licensing traffic destined to the IDLE unit.
–
IDLE – Indicates that the Backup unit is passive and is ready to take over on a failover.
–
ELECTION – Indicates that the Backup and Primary units are negotiating which should
be the ACTIVE unit.
–
SYNC – Indicates that the Backup unit is synchronizing settings or firmware to the
Primary.