IBM SAN42B-R, Инструкция по установке, обслуживанию и эксплуатации

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Chapter 1. Overview of the SAN42B-R switch
The IBM System Storage SAN42B-R switch is intended as a platform for Fibre
Channel over IP (FCIP). This enables transmission of Fibre Channel data over long
distances by way of IP networks by wrapping Fibre Channel frames in IP packets.
Each end of the FCIP communication path must be a compatible FCIP device. The
switch can operate independently or in a fabric containing multiple extension
switches.
SAN42B-R software features
The SAN42B-R provides the following software features.
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Multiple logical FCIP tunnels with maximum tunnel bandwidth up to 20 Gbps
allow for scalable connectivity between sites. Note that the SAN42B-R does not
support FCIP connectivity with any other products including the SAN06B-R and
the FX8-24 blade.
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FCIP Trunking feature allows multiple IP source and destination address pairs
(defined as FCIP circuits) via multiple 1/10 GbE or 40 GbE interfaces to provide
high bandwidth FCIP tunnel and lossless failover resiliency. In addition, each
FCIP circuit supports four QoS classes (Class-F, High, Medium and Low
Priority), each as a TCP connection.
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ARL feature meets minimum bandwidth guarantee for each tunnel while
making the full utilization of the available network bandwidth without adverse
throughput performance impact at high traffic load.
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Hardware-based compression delivers the ability to maximize throughput over
lower bandwidth links in the wide area network, optimizing the cost efficiencies
of FCIP. The SAN42B-R compresses FC frames before they are encapsulated into
FCIP packets.
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Key protocol features are enabled in the FCIP implementation to optimize
performance of Extension over IP networks, including FX8-24 and WAN
Optimized TCP (WO-TCP), 9K jumbo frame and end-to-end Path MTU auto
discovery.
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Hardware-based IPsec supports mix of secure and non secure tunnels on the
same Ethernet port, jumbo frames, and VLAN tagged connections. The IPsec
function is capable of supporting both IPv4 and IPv6.
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FastWrite, Open Systems Tape Pipelining and Advanced Accelerator for FICON
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mitigate the latency effect of a long distance FCIP distance connection over IP
WAN.
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FCIP HCL (Hot Code Load) provides In-service firmware upgrade for
supporting 24/7 nonstop business operations.
v Built-in WAN link tester generates traffic over an IP connection to test for
maximum throughput, congestion, loss percentage, out of order deliver, latency,
and other network conditions. It helps determine the health of a WAN link
before deploying it for use.
v
Fabric Vision advanced monitoring provides the following functions:
– Policy based monitoring monitors FCIP connectivity and WAN anomalies
using multi-layer metrics.
– Flow monitoring reports IOPS and data rate of individual I/O flows of
inter-DC replication and tape backup operations.
© Copyright IBM Corp. 2014
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