Each Supervisor-2 Module provides the necessary crossbar bandwidth to deliver full system performance in the Cisco MDS 9509 director with up to seven Fibre Channel switching mod- ules. Loss or removal of a single cross- bar module has no impact on system performance.
Connectivity, compatibility and traffic
management
The Cisco MDS 9509 for IBM System Storage requires a minimum of one switching module and allows a maxi- mum of seven. These modules are available in configurations of 4 Gbps (12, 24 and 48-port) and 8 Gbps
(24 and 48-port), enabling the Cisco MDS 9509 to support 12 to 336 Fibre Channel ports per chassis. Optionally, a 4-port 10 Gbps Fibre Channel module is available for high-performance Inter- Switch Link (ISL) connections over metro optical networks.
Switching modules are hot-swappable with small form-factor pluggable (SFP) optic transceivers and LC interface support. The PortChannel capability enables users to aggregate up to
16 physical Inter-Switch Links into a single logical bundle, providing opti- mized bandwidth utilization across all links.
12-, 24- and 48-port 4 Gbps switching
modules: Configuring the switch for the
application environment
The 12-port 4 Gbps Fibre Channel
Switching Module delivers high performance for the most demanding storage networking applications. Autosensing 1, 2 and 4 Gbps ports deliver up to 96 Gbps of continuous aggregate bandwidth, which provides up to 8 Gbps throughput per port (full duplex). The 12-port switching module is well suited for attaching highest-performance 4 Gbps enabled servers and storage subsystems as well as to connect to other switches using 4 Gbps ISL connections.
The 24-port 4 Gbps Fibre Channel
Switching Module handles high- performance storage networking applications. Twenty-four autosensing 1, 2 and 4 Gbps ports deliver sustained bandwidth to meet the performance requirements of enterprise-class storage and servers. Port bandwidth reservation enables 1, 2 or 4 Gbps switching bandwidth to be dedicated to a port, including highest-performance ISL ports. The 24-port switching module is well suited for attaching
high-performance servers and storage subsystems as well as to connect to other switches using ISL connections.
The 48-port 4 Gbps Fibre Channel
Switching Module offers an optimal balance of performance and port den- sity. Forty-eight autosensing 1, 2 and
4 Gbps ports deliver sustained band- width to meet a wide range of perform- ance requirements for a mixture of SMB and enterprise-class storage and servers. Port bandwidth reservation enables 1, 2 or 4 Gbps switching band- width to be flexibly dedicated to ports to meet a wide range of application requirements. This module provides a low-cost means of attaching lower- performance servers and storage subsystems to the high-performance crossbar switch fabric without requiring ISLs.
24-, 48- and 4/44-port 8 Gbps switching
modules: Configuring the switch for fast
link speeds
The 24-port 8 Gbps Fibre Channel
Switching Module provides uncom- promising performance of up to
96 Gbps of continuous aggregate bandwidth, providing up to 16 Gbps throughput per port (full duplex). This module is best suited for connection to 4 and 8 Gbps high-performance stor- age devices and for ISL connectivity.
