IBM MDS 9509 - Manual (Page 2)

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.