HP StorageWorks 1606 Brocade Web Tools Administrator's Guide v6.3.0 (53-100134 - Page 168
Basic Zones, Traffic Isolation zones, LSAN zone requirements, TABLE 14 - extension san switch specifications
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9 Zoning overview Basic Zones Basic zoning enables you to partition a storage area network (SAN) into logical groups of devices that can access each other. For example, you can partition a SAN into two zones, winzone and unixzone, so that the Windows servers and storage do not interact with UNIX servers and storage. Zones can be configured dynamically. They can vary in size, depending on the number of fabric-connected devices, and devices can belong to more than one zone. Because zone members can access only other members of the same zone, a device not included in a zone is not available to members of that zone. Traffic Isolation zones A traffic isolation zone (TI zone) is a special zone that creates a dedicated path for a specific traffic flow. TI zones are primarily for shaping and controlling traffic rather than partitioning access to storage. LSAN zone requirements An LSAN enables device connectivity between fabrics connected in Fibre Channel Routing (FCR) configurations without forcing you to merge fabrics. Extension switches like the 7500 provide multiple mechanisms to manage interfabric device connectivity. Zones that contain hosts and targets that are shared between the two fabrics need to be explicitly coordinated. To share devices between any two fabrics, you must create an LSAN zone in both fabrics considering the following: • The name of an LSAN begins with the prefix LSAN_. The prefix is not case sensitive. • Members must be identified by their port WWN because port IDs are not necessarily unique across fabrics. QoS zone requirements A QoS zone is a special zone that assigns a Quality of Service (QoS) level for traffic flow between a given host or target pair. The members of a QoS zone are WWNs of the host or target pairs. QoS zones can contain only WWN members. A QoS zone has a special prefix, to differentiate it from a regular zone. The formats and meaning of the QoS zone name prefix are shown in Table 14 (the names are not case dependent). TABLE 14 QoS zone name prefixes QoS name prefix Priority Bandwidth assignment QosH_ QosM_ QosL_ High Medium Low Five virtual circuits, 60% of available bandwidth Four virtual circuits, 40% of available bandwidth Two virtual circuits, 10% of available bandwidth 136 Web Tools Administrator's Guide 53-1001343-01