Riverstone Networks RS 2100 Spezifikationen PDF herunterladen (Seite 19)

Fibre Channel Over IP

19Continuous Access and Data Replication Manager SAN Extensions Reference Guide

■ Increase your link bandwidth while normalization is taking place.

■ Determine what data must absolutely be available in a short time after a

disaster, and put that data into a copy set. This applies not only to

HSG80-based storage arrays, but also with the EVA family of storage arrays.

Back up all other data using other non-realtime backup methods.

Currently most IP networks do not manage bandwidth to each individual

connection. As traffic increases due to other demands on the network, bandwidth

can be taken from the replication application. The following techniques can be

used to minimize this effect:

■ Create virtual private networks (VPNs) with Quality of Service (QoS) through

your local routers for the replication circuit.

■ Create separate physical networks.

■ Guarantee the bandwidth using a third-party router/QoS vendor.

Distance has a dramatic effect on the amount of work that can be done across a

link. Therefore, site planning should include the following best practices:

■ Use the shortest possible distance between remote sites.

■ Minimize the number of copy sets used.

■ Design a plan to add additional copy sets that will not impact normal data

traffic.

■ Consider additional controller pairs to effectively use available bandwidth.

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Riverstone Networks RS 2100 Spezifikationen Seite 19