Dell SMA 200 Administration Manual page 337

4 Can the X0, X1 and X2 interface settings be amended after HA mode is set up?
Yes, the X0, X1 and X2 interface settings can be amended on the primary device and these new settings
are copied to the backup device.
5 Can the synchronization status between the devices be viewed in the Secure Mobile Access management
interface?
Yes. These can be viewed on the Active SMA/SRA in the Log > View page. The log message: "Finish
synchronizing all data," appears.
6 Is there any provision to make sure that the backup device is working correctly?
Yes. There are many messages on the Log > View page regarding Active and Idle device transitions.
You can check the High Availability page for the device status; one should be ACTIVE and the other is
IDLE, as indicated in the image that follows:
If the LAN and WAN monitoring IP addresses are configured in the Network Monitoring Address section,
the status of those interfaces is displayed.
You can also check the Network > Interfaces page for the X3 interface status, this should be "HA Link-
Connected."
7 Are firmware and settings synchronized to the Idle unit?
Yes, both firmware and settings are synchronized between Active and Idle nodes. The Synchronize
Firmware button allows you to synchronize firmware from the Active to the Idle unit. When settings are
changed, clicking Accept synchronizes settings.
8 Does the HA configuration for SMA/SRA appliances differ from the HA configuration of Dell SonicWALL
firewall devices?
Yes. HA configuration on a firewall is very different. Along with other items, firewall HA is also available
in Active/Active state and can be assigned a virtual IP address. HA with SMA/SRA appliances is currently
available only in Active/Passive mode.
9 How are settings applied to the Idle device?
Settings from the Active device are copied over to the Idle device as soon as HA configuration is
complete. You can check the success of this in the active device logs.
10 What happens to the backup device settings?
The backup device settings are deleted and replaced with the primary device settings. If you wish to
keep any settings from the backup device, it is recommended that you download a backup of the settings
before switching to HA.
11 How do I view the status of the Backup unit?
Enter the management IP address of the idle unit into the High Availability > Settings > Management
Settings For Idle Unit > Management Address text-field, then click Accept. Navigate to the High
Availability Status and view the status in the Backup Status field. If the management IP address of the
idle unit is not entered, the Backup Status displays as "Not Available."
12 Can I deploy an HA pair behind a proxy?
No, SMA/SRA appliances in an HA pair cannot be deployed behind a proxy. They communicate with the
backend servers directly to download signatures and so on.
Dell SonicWALL Secure Mobile Access 8.5
Administration Guide
337