HP 8/24 Fabric OS Administrator's Guide v6.4.0 (53-1001763-01, June 2010) - Page 302
Fabric OS Command Reference, Both fabrics have identical zones and configurations enabled
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11 Zoning configuration management The database is the zone configuration database. (This is the data displayed as the "defined configuration" in the cfgShow command.) It is stored in nonvolatile memory by the cfgSave command. This database is a replicated database, which means that all switches in the fabric will have a copy of this database. When a change is made to the defined configuration, the switch where the changes were made must close its transaction for the change to be propagated throughout the fabric. If you have implemented default zoning you must set the switch you are adding into the fabric to the same default zone mode setting as the rest of the fabric to avoid segmentation. • Merging rules Observe these rules when merging zones: - Local and adjacent configurations: If the local and adjacent zone database configurations are the same, they will remain unchanged after the merge. - Effective configurations: If there is an effective configuration between two switches, the effective zone configurations must match. - Zone object naming: If a zoning object has the same name in both the local and adjacent defined configurations, the object types and member lists must match. When comparing member lists, the content and order of the members are important. - Objects in adjacent configurations: If a zoning object appears in an adjacent defined configuration, but not in the local defined configuration, the zoning object is added to the local defined configuration. The modified zone database must fit in the nonvolatile memory area allotted for the zone database. - Local configuration modification: If a local defined configuration is modified because of a merge, the new zone database is propagated to other the switches within the merge request. • Merging two fabrics Both fabrics have identical zones and configurations enabled, including the default zone mode. The two fabrics will join to make one larger fabric with the same zone configuration across the newly created fabric. If the two fabrics have different zoning configurations, they will not be merged. If the two fabrics cannot join, the ISL between the switches will segment. • Merge conflicts When a merge conflict is present, a merge will not take place and the ISL will segment. Use the switchShow or errDump commands to obtain additional information about possible merge conflicts, because many non-zone related configuration parameters can cause conflicts. See the Fabric OS Command Reference for detailed information about these commands. If the fabrics have different zone configuration data, the system attempts to merge the two sets of zone configuration data. If the zones cannot merge, the ISL will be segmented. 262 Fabric OS Administrator's Guide 53-1001763-01