Merge conflicts, Splitting a fabric, Merge conflicts splitting a fabric – HP StorageWorks 2.64 Core Switch User Manual

Page 39

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Zoning Concepts

39

Zoning Version 3.1.x/4.1.x User Guide

Merge Conflicts

When a merge conflict is present, a merge will not take place and the ISL will
segment. Below is a list of possible reasons for merge conflicts.

Use the

switchshow

command to obtain additional information about possible

merge conflicts, as many non-zone related configuration parameters may cause
conflicts

If the fabrics have different zone configuration data, the two sets of zone
configuration data are merged if possible. If the zones cannot merge, the
interswitch link (ISL) will be segmented. A merge is not possible if any of the
following exist:

Note:

If the order of zoneset members between two switches are not listed in the same

order, the configuration is considered a mismatch, resulting in the switches being

segmented in the fabric. For example:

cfg1 = z1; z2

is different from

cfg1 = z2;

z1,

even though members of the configuration are the same. If zoneset members

between two switches have the same name defined in the configuration, make sure

zoneset members listed are in the same order.

Splitting a Fabric

If the connections between two fabrics are no longer available, the fabric will
segment into two separate fabrics. Each new fabric will retain the same zone
configuration.

If the connections between two fabrics are replaced and no changes have been
made to the zone configuration in either of the two fabrics, then the two fabrics are
guaranteed to merge back into one single fabric. If any changes that cause a
conflict have been made to either zone configuration, then the fabrics may
segment.

Configuration
mismatch

Zoning is enabled in both fabrics, and the zone
configurations that are enabled are different in each
fabric.

Type mismatch

The name of a zone object in one fabric is used for a
different type of a zone object in the other fabric.

Content mismatch

The definition of a zone object in one fabric is
different from the definition of zone object with the
same name in the other fabric.

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