HP StorageWorks 1606 Brocade Fabric OS Administrator's Guide v6.3.0 (53-100133 - Page 279

Setting the default zoning mode, Viewing the current default zone access mode

Page 279 highlights

Default zoning mode 11 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. Example 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. Do you want to save Defined zoning configuration only? (yes, y, no, n): [no] y Updating flash ... 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 perform a firmware download of an older release, then 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. Fabric OS Administrator's Guide 237 53-1001336-01

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Fabric OS Administrator’s Guide
237
53-1001336-01
Default zoning mode
11
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.
Example
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.
Do you want to save Defined zoning configuration only?
(yes, y, no, n): [no]
y
Updating flash ...
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 perform a firmware download of an older release, then 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.