HP StorageWorks XPath OS 7.4.X Administrator Guide (AA-RVHDD-TE, February 2006)

48 Using the FC-FC Routing Service
Figure 6 Proxy topology
LSANs and zoning
An LSAN is defined by a zone in an edge fabric. You can define and manage LSANs using HP Advanced
Zoning or HP Fabric Manager.
Zones are locally defined. Names and memberships, with the exception of hosts and targets exported from
one fabric to another, do not need to be coordinated between the edge fabrics. For example, in Figure 5
on page 47, when the zones for Edge SAN 1 are defined, you do not need to consider the zones in Edge
SAN 2, and vice versa.
The exception is hosts and targets that are shared between the two fabrics. Although an LSAN zone is
managed using the same tools as any other zone on the edge fabric, two characteristics distinguish an
LSAN zone from a conventional zone:
• A required name convention. The name of an LSAN zone begins with LSAN_. This is case insensitive;
for example, lsan_ is equivalent to LSAN_, Lsan_, and so on.
• Members must be identified by their port WWN, because PIDs are not necessarily unique across
fabrics.
Because zoning is enforced by all involved edge fabrics, any communication from one edge fabric to
another must be allowed by the zoning setup on both edge fabrics. If the SANs are under separate
administrative control, the separate administrators maintain access control.
You can perform LSAN zoning for both HP and for McDATA fabrics using HP LSAN zoning.
The following example procedure illustrates how LSAN zones control the devices that can communicate
with one another. The example shows the creation of two LSAN zones (called lsan_zone_fabric1 and
lsan_zone_fabric2), which involve the following devices:
• Switch1 and the host are in fabric1.
• Switch2 and targets A and B are in fabric2.
• Switch1 is connected to the MP Router using an EX_Port.
• Switch2 is connected to the MP Router using another EX_Port.
• Host is at WWN 10:00:00:00:c9:2b:6a:2c (connected to switch1).
• Target A is at WWN 22:00:00:20:37:c3:11:71 (connected to switch2).
• Target B is at WWN 22:00:00:20:37:c3:1a:8a (connected to switch2).
Fabric 2
Target
Proxy
Target
Proxy
Host
Host
Fabric 1
Multiprotocol
Router
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