IBM SAN32M1, Installation And Service Manual

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351 Chapter 4: Repair information
4. At the navigation control panel, select Set Online State from the
Maintenance menu. If the switch is online, the Set Online State
dialog box displays, indicating the state is ONLINE
.
5. Click Set Offline. A Warning dialog box displays, indicating the
switch is to be set offline.
6. Click OK. As the switch goes offline, inspect the Element Manager
application. The State field of the Status table displays OFFLINE.
Block and unblock ports
This section describes procedures to block or unblock the switch
ports. When a port is blocked, the port is automatically set offline.
When a port is unblocked, the port is automatically set online.
NOTE: When a port is blocked, the operation of an attached Fibre Channel
device is disrupted. Do not block a port unless directed to do so by a
procedural step or the next level of support.
Block a port
To block a port:
1. Notify the customer the port is to be blocked. Ensure the
customer’s system administrator quiesces Fibre Channel frame
traffic through the port.
2. At the EFC Server, open the EFC Manager application. The
Product View displays.
3. Select the icon representing the switch with the port to be
blocked. The Hardware View for the selected switch displays.
4. Move the pointer over the port and right-click the mouse to open
a list of menus.
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