Q-Logic 59022-03 D manual Merging Fabrics and Zoning, Zone Merge Failure Recovery

3 – Managing Fabrics	￿
Zoning a Fabric

3.4.4

Merging Fabrics and Zoning

If you join two fabrics, the active zone sets from the two fabrics attempt to merge. The fabrics may consist of a single switch or many switches already connected together. The switches in the two fabrics attempt to create a new active zone set containing the union of each fabric’s active zone set. The propagation of zoning information only affects the active zone set, not the configured zone sets, unless the Merge Mode is set to "Brocade Proprietary". Refer to ”Merge Mode” on page 3-14.

3.4.4.1

Zone Merge Failure

If a zone merge is unsuccessful, the inter-switch links between the fabrics will isolate due to a zone merge failure, which will generate an alarm log entry. The reason for the E_Port isolation can also be determined by viewing the port information. Refer to ”Port Information Data Window” on page 4-5and the ”Show Command” on page A-39(Port keyword).

A zone merge will fail under the following conditions:

■The Merge Mode in the two fabrics is different. All switches in the combined fabric must have the same merge mode.

■The two active zone sets have member zones with identical names that differ in content or type. For example, consider Fabric A and Fabric B each with a zone in its active zone set named “ZS1”. Fabric A "ZS1" contains a member specified by Domain ID 1 and Port 1; Fabric B “ZS1” contains a member specified by Domain ID 1 and Port 2. In this case, the merge will fail and the inter-switch links between the fabrics will isolate.

3.4.4.2

Zone Merge Failure Recovery

When a zone merge failure occurs, the conflict that caused the failure must be resolved. If the failure was due to differing Merge Modes, change the Merge Mode on the switches in one of the fabrics to match the other fabric. Refer to ”Using the Zoning Config Window” on page 3-15for information about changing the Merge Mode. To permit the fabrics to join, reset the ports that were isolated. Refer to ”Resetting a Port” on page 5-13.

1.You can correct a failure due to a zone conflict by deactivating one of the active zone sets or editing the conflicting zones so that their membership is the same. You can deactivate the active zone set on one switch if the active zone set on the other switch accurately defines your zoning needs. If not, you must edit the zone memberships, and reactivate the zone sets. Refer to ”Managing Zones” on page 3-22for information about adding and removing zone members. To permit the fabrics to join, reset the ports that were isolated. Refer to ”Resetting a Port” on page 5-13.

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