HP A7533A - Brocade 4Gb SAN Switch Base, Administrator'S Manual

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Fabric OS 6.2 administrator guide 251
cannot specify a mode option or specify a zone object as an argument with the
-f
option. This mode
flag should be used after the zone has been validated.
For more details about the
zone
,
cfgShow
,
cfgEnable
, and
cfgSave
commands, see the Fabric OS
Command Reference .
Default zoning mode
The default zoning mode controls device access if zoning is not implemented or if there is no effective zone
configuration. The default zoning mode has two options:
• All Access. All devices within the fabric can communicate with all other devices.
• No Access. Devices in the fabric cannot access any other device in the fabric.
The default zone mode applies to the entire fabric, regardless of switch model.
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 connected to thousands of devices, the default zone mode should be
set to No Access. If the default zone mode is All Access and the effective configuration is disabled, the
large number of requests to the switches might result in a queue full scenario.
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
1. Connect to the switch and log in as admin.
2. Enter the
cfgActvShow
command to view the current zone configuration.
3. Enter the
defZone
command with one of the following options:
defzone --noaccess
defzone --allaccess
This command initiates a transaction (if one is not already in progress).
4. Enter either the
cfgSave
,
cfgEnable
, or
cfgDisable
command to commit the change and
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.
Viewing the current default zone access mode
1. Connect to the switch and log in as admin.
2. Enter the
defZone
--
show
command.
NOTE: If you performed a firmware download of an older release, the current default zone access
state will appear as it did prior to the download. For example, if the default zoning mode was No
Access before the download, it will remain as No Access afterward.
See the Fabric OS Command Reference for additional information on the
defZone
command.