Setting The Default Zoning Mode - HP SN3000B Administrator's Manual

Typically, when you disable the zoning configuration in a large fabric with thousands of devices, the
name server indicates to all hosts that they can communicate with each other. In fact, each host
can receive an enormous list of PIDs, and ultimately cause other hosts to run out of memory or
crash. To ensure that all devices in a fabric do not see each other during a configuration disable
operation, set the default zoning mode to No Access.
NOTE
For switches in large fabrics, the default zone mode should be set to No Access. You cannot disable
the effective configuration if the default zone mode is All Access and you have more than 120
devices in the fabric.
Admin Domain considerations: If you want to use Admin Domains, you must set the default zoning
mode to No Access prior to setting up the Admin Domains. You cannot change the default zoning
mode to All Access if user-specified Admin Domains are present in the fabric.

Setting the default zoning mode

NOTE
You should not change the default zone mode from No Access to All Access if there is no effective
zone configuration and more than 120 devices are connected to the fabric.
1. Connect to the switch and log in using an account with admin permissions.
2. Enter the cfgActvShow command to view the current zone configuration.
3. Enter the defZone command with one of the following options:
4. Enter either the cfgSave, cfgEnable, or cfgDisable command to commit the change and
Example
Fabric OS Administrator's Guide
53-1002446-01
defzone --noaccess
defzone --allaccess
This command initiates a transaction (if one is not already in progress).
distribute it to the fabric. The change will not be committed and distributed across the fabric if
you do not enter one of these commands.
switch:admin> defzone --noaccess
You are about to set the Default Zone access mode to No Access
Do you want to set the Default Zone access mode to No Access ? (yes, y, no, n):
[no] y
switch:admin> cfgsave
You are about to save the Defined zoning configuration. This
action will only save the changes on Defined configuration.
Any changes made on the Effective configuration will not
take effect until it is re-enabled. Until the Effective
configuration is re-enabled, merging new switches into the
fabric is not recommended and may cause unpredictable
results with the potential of mismatched Effective Zoning
configurations.
Do you want to save Defined zoning configuration only?
Updating flash ...
Default zoning mode
(yes, y, no, n): [no] y
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