Overland Storage SnapServer Administrator's Manual page 50

SnapServer 7.0 Administrator's Guide
• For failover, these parts are connected to a different switch on the same subnet (in
Make Sure the Switch is Set to Autonegotiate Speed/Duplex Settings
When the server is shipped from the factory, both ports are set to autonegotiate. This
setting allows the SnapServer to base speed and duplex settings on the physical port
connection to a switch. Thus, the switch/hub to which the SnapServer is cabled must be set
to autonegotiate to initially connect to the server; otherwise, network throughput or
connectivity to the server may be seriously impacted.
To use fixed duplex settings (not applicable to gigabit), the same fixed setting must be set
on the server and switch.
Configure the Switch for Load Balancing
If you select either the Switch Trunking or Link Aggregation network bonding
configuration, be sure the switch is configured correctly for that bonding method. No switch
configuration is required for Adaptive Load Balancing (ALB).
Changing from Auto to a Fixed Link Setting
You can configure a fixed link speed and duplex setting on the Network > TCP/IP page in the
browser-based Web Management Interface. If you change this setting, you must:
1. Configure the fixed setting in the Web Management Interface first.
2. Configure the switch to the same fixed setting.
IMPORTANT: If you change the switch setting before you change the setting in the Web
Management Interface, the SnapServer may not connect to the network. The Link LED on the
SnapServer front panel will be off or amber if the server is not connected to the network.
Procedure to Create a Bond
On a SnapServer with two or more Ethernet ports, a bond can be created:
1. Click the Create Bond button.
2. On the page that opens, select a bonding mode:
a. Bond Type – Choose one of the following settings:
b. Select Ports to include in Bond – Select the ports you want to include in the
3. Click OK to close the Configuration page, then click OK again to apply the changes.
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case one switch fails).
• Load Balance (ALB) – enables all selected ports to share the network load.
• Failover – enables other selected ports to automatically take over the
connection if the primary port fails. Only one port is active at any given time.
• Switch Trunking and Link Aggregation (802.3ad) – these two options group
multiple Ethernet ports into one logical Ethernet port for high speed and fault
tolerance.
Ports not joined to a bond are configured as Standalone and have separate
interfaces (one IP address per port).
Bond from the Ports not in Bondn column and use the Add button to move them to
the Ports in Bondn column.
©2010-11 Overland Storage, Inc.
3 – Network Access
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