Seagate NAS OS 4 U User Manual page 81

Port aggregation: Failover protection using fault tolerance
Configure fault tolerance to keep your NAS connected to the network even if one Ethernet port or cable fails.
Before following the directions below, make certain that your network switch or router supports link
.aggregation
.Connect LAN 1 and LAN 2 to the same switch or router .1
:If one LAN is listed as inactive .2
.Confirm that it is securely connected to the device and to your router
Pass the cursor to the far right of the LAN port to make the Edit pull-down menu visible. If the option is
.available, choose Enable
.With both LANs enabled, choose Link .3
.Select Fault tolerance and choose Next .4
.Check the boxes next to each LAN port and choose Next .5
Fault tolerance automatically switches to the secondary LAN if it cannot detect the primary LAN. In this .6
step, click on the pull-down menu and choose the type of fault detection for the bond: Physical (e.g. a bad
Ethernet cable or Ethernet port) or Logical (e.g. contact with another IP address). For logical fault tolerance,
enter the IP address that the NAS OS device will ping to confirm the stability of the primary LAN, as well as
the frequency of the ping. The IP address should target a separate server, a computer on the network, or
.another device that can manage the task
.Choose Next .7
You can give a unique name to the fault tolerance bond in the Name field. This type of Ethernet bonding will .8
create a unified IP address (DHCP or static). To use a static address, choose Manual in the IPv4 or IPv6
pull-down menus and complete all the fields. The IP address must be consistent with the values of your
.network
.Choose Finish .9
.The two LAN ports are listed as one on the Connections tab
:Break the fault tolerance bond
.Pass the cursor to the far right of the LAN's row to make the Edit pull-down menu visible .1
.Choose Remove link and Continue at the prompt .2
Removing the link can disable the secondary LAN interface. Pass the cursor to the far right of the disabled .3
.LAN port to make the Edit pull-down menu visible and choose Enable
Port aggregation: LAN failover for load balancing versus fault
tolerance
Both bonding and fault tolerance can save you from losing productivity should a single LAN fail (e.g. NAS port,
router port, or cable). In the event of LAN failure in a load balance bond, it can take a few minutes for the NAS
to switch to single LAN mode. Fault tolerance will make the switch instantly, allowing for uninterrupted
.communication with the NAS
Proxy tab
A proxy server is used to connect network devices to the Internet. If necessary, your NAS can be configured to
81 10/18/16 Seagate NAS OS 4