IBM TotalStorage 2109 M12, User Manual

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related fibre-channel feature standards. Each operating environment requires that a
fibre-channel host bus adapter (HBA) be available with a standards-compliant driver
for proper interface to the fabric.
Fabric OS consists of a set of embedded applications running on top of an
embedded real-time Linux operating system kernel. These applications include the
following:
v
Name server
v Alias server
v
Simple Network Management Protocol (SNMP) agent
v Several tasks to manage the following:
– Address assignment
– Routing
– Link initialization
– Fabric initialization
– Link shutdown
– Switch shutdown
– User interface
Fabric OS features
The Fabric OS supports the following features and functions:
v An optional software feature, ISL Trunking, allows up to four ISLs between the
same pair of switches to be grouped and to act as a single, high-speed “pipe” or
trunk with a capacity of up to 8 Gbps. In-order delivery of frames is guaranteed
and ISLs can be added to or removed from the trunking group seamlessly
without causing rerouting. For more information, see Brocade ISL Trunking User’s
Guide.
v
Advanced Zoning augments the Zoning capabilities brought forward from the
3534 1RU switch with the ability for hardware to enforce zoning by WWN. This
new feature maintains the superior security of hardware-enforced zoning
configurations, even if one or more hosts get moved to attach through different
switch ports. The same frame filtering technology that enables hardware-enforced
WWN zoning can be used in subsequent releases to enable hardware
enforcement of zoning by protocol or down to the LUN level. For more
information, see Brocade Advance Zoning User’s Guide.
v
The optional Performance Monitoring software feature improves on the ability of
the basic Fabric OS to monitor performance on switch ports. Fabric OS by itself
can report gross traffic loads, port utilization, and error counts on each port.
Performance Monitoring applies frame filtering technology to measure these
quantities for separate data streams (or routes) that make up the traffic on each
port, breaking the statistics out by source ID (SID), destination ID (DID), or
SID/DID pair. Thus you can find out not only what is happening on each port, but
also the source of the activity. For more information, see Brocade Advanced
Performance Monitoring User’s Guide.
v
Each blade assembly includes port status and port speed indicators,
auto-negotiation between 1 Gbps and 2 Gbps per port with the ability to override
auto-negotiation. One or two functional switches can occupy a single M12 or M14
chassis.
v The blowers and power supply modules can be hot-added without service
interruption.
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IBM TotalStorage SAN Switch: 2109 Model M12 and Model M14 User’s Guide