HP AA979A - StorageWorks SAN Switch 2/8V, Administrator'S Manual, Page: 301 / 465

Fabric OS 5.3.0 administrator guide 313
8. Enter the
configure
command to edit the fabric parameters for the segmented switch.
Refer to the Fabric OS Command Reference Manual for more detailed information.
9. Enable the switch by entering the
switchEnable
command.
Alternatively, you can reconcile fabric parameters by entering the
configUpload
command for each
switch.
To download a correct configuration
You can restore a segmented fabric by downloading a previously saved correct backup configuration to the
switch. Downloading in this manner reconciles any discrepancy in the fabric parameters and allows the
segmented switch to rejoin the main fabric. For details on uploading and downloading configurations,
refer to ” Maintaining configurations ” on page 147.
To reconcile a domain ID conflict
If a domain ID conflict appears, the conflict is only reported at the point where the two fabrics are
physically connected. However, there might be several conflicting domain IDs, which will appear as soon
as the initial conflict is resolved.
Typically, the fabric automatically resolves domain conflicts during fabric merges or builds unless Insistent
Domain ID (IDID) is configured. If IDID is enabled, switches that cannot be programmed with a unique
domain ID are segmented out. Check each switch that has IDID configured and make sure their domain
IDs are unique within the configuration.
Repeat this procedure until all domain ID conflicts are resolved:
1. Enter the
fabricShow
command on a switch from one of the fabrics.
2. In a separate telnet window, enter the
fabricShow
command on a switch from the second fabric.
3. Compare the
fabricShow
output from the two fabrics. Note the number of domain ID conflicts; there
might be several duplicate domain IDs that will need to be changed. Determine which switches have
domain overlap and change the domain IDs for each of those switches.
4. Chose the fabric on which to change the duplicate domain ID; connect to the conflicting switch in that
fabric.
5. Enter the
switchDisable
command.
6. Enter the
switchEnable
command.
This will enable the joining switch to obtain a new domain ID as part of the process of coming online.
The fabric principal switch will allocate the next available domain ID to the new switch during this
process.
7. Repeat step 4 through step 6 if additional switches have conflicting domain IDs.
Correcting zoning setup issues
The types of zone configuration discrepancies that can cause segmentation are listed in Table 66 .
Table 66 Types of zone discrepancies
Conflict Cause Description
Configuration
mismatch
Occurs when zoning is enabled in both fabrics and the zone
configurations that are enabled are different in each fabric.
Type mismatch Occurs when the name of a zone object in one fabric is also used for a
different type of zone object in the other fabric. A zone object is any device
in a zone.
Content mismatch Occurs when the definition in one fabric is different from the definition of a
zone object with the same name in the other fabric.