HP 1606 Brocade Fabric OS Administrator's Guide v6.3.0 (53-1001336-01, July 20 - Page 265
Zone types, TABLE 46
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Zoning overview 11 JBOD Loop 2 Server2 Blue zone Server1 Fibre Channel Fabric Hub Loop 1 RAID Server3 Red zone FIGURE 26 Zoning example Green zone To list the commands associated with zoning, use the zoneHelp command. For detailed information on the zoning commands used in the procedures, see the Fabric OS Command Reference or the online man page for each command. Zone types Table 46 summarizes the types of zoning available. TABLE 46 Zone type Types of zoning Description Storage-based Host-based Fabric-based Storage units typically implement LUN-based zoning, also called LUN masking. LUN-based zoning limits access to the LUNs on the storage port to the specific WWN of the server HBA. It is needed in most SANs. It functions during the probe portion of SCSI initialization. The server probes the storage port for a list of available LUNs and their properties. The storage system compares the WWN of the requesting HBA to the defined zone list, and returns the LUNs assigned to the WWN. Other LUNs on the storage port are not made available to the server. Host-based zoning can implement WWN or LUN masking. Fabric switches implement fabric-based zoning, in which the zone members are identified by WWN or port location in the fabric. Fabric-based zoning is also called name server-based or soft zoning. When a device queries the fabric name server, the name server determines the zones in which the device belongs. The server returns information on all members of the zones in the fabric to the device. Devices in the zone are identified by node WWN, port WWN, or domain,port of the switch to which the device is connected. The primary approaches to fabric-based zoning are summarized in Table 47. Table 47 on page 224 lists the various approaches you can take when implementing zoning in a fabric. Fabric OS Administrator's Guide 223 53-1001336-01
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