RDX QuickStation 4, Руководство по эксплуатации продукта

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Port Configuration Options
The RDX QuikStation 4 has two Gigabit Ethernet ports to provide failover protection
and high availability network connectivity. In network environments, it is a common
practice to configure two or more external ports as a single, logical, bonded port using
an industry standard feature called Link Aggregation, also known as port bonding or
port trunking.
Bonded Network Configuration
The behavior of the logically-bonded ports depends upon the mode. For the RDX
QuikStation 4, you can configure port bonding for active backup/failover, adaptive
load balancing, or dynamic link aggregation.
The following table describes the port bonding modes that are available in the RDX
QuikStation 4.
Table 4-2 Port bonding options
Port bonding mode
Description
Active-backup (failover) The Active-backup or failover mode is the default
configuration for the RDX QuikStation 4. This mode
uses one port (adapter) and is limited by that port’s
throughput. It will only switch to the other port if the
active port fails.
Adaptive load balancing
(balance-alb) Adaptive Load Balancing provides load balancing of
transmit and receive traffic. It also provides automatic
failover if one cable fails. This option works with any
switch and is best used in a multi-disk environment that
has multiple iSCSI host connections. This mode can
provide a maximum performance for multiple iSCSI
sessions from the different IP addresses. You might
consider using this option if you have configured your
RDX QuikStation 4 as four RDX drives, and you are
using most or all of the four iSCSI disk targets.
Dynamic link aggregation
(802.3ad) Creates aggregation groups that share the same speed
and duplex settings. Utilizes all slave network
interfaces in the active aggregator group according to
the IEEE 802.3ad specification.
Requires 802.3ad support in Ethernet switch and host
computer (iSCSI initiator). This mode shall be utilized
as point-to-point between RDX QS 4 and the initiator
host.This mode can provide a maximum performance
for a multiple iSCSI sessions from the same IP address.
If the network is not configured properly, using this port
bonding mode can disrupt the entire network.