IBM 86595RY Hardware Maintenance Manual - Page 49

Failover for redundant Ethernet, Configuring Failover on OS/2

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Failover for redundant Ethernet The Netfinity 5000 has an integrated Ethernet controller. The IBM Netfinity 10/100 Fault Tolerant Adapter is an optional redundant network interface card (NIC adapter) that you can install in the server. If you install this NIC adapter and connect it to the same logical segment as the primary Ethernet controller, you can configure the server to support a failover function. You can configure either the integrated Ethernet controller or the NIC adapter as the primary Ethernet controller. In failover mode, if the primary Ethernet controller detects a link failure, all Ethernet traffic associated with it is switched to the redundant (secondary) controller. This switching occurs without any user intervention. Applications with active sessions do not experience any data loss. When the primary link is restored to an operational state, the Ethernet traffic automatically switches back to the primary Ethernet controller. Notes 1. Only one controller in the redundant pair is active at any given time. For example, if the primary Ethernet controller is active, then the secondary Ethernet controller cannot be used for any other network operation. 2. The operating system determines the maximum number of IBM Netfinity 10/100 Fault Tolerant Adapters that you can install in the server. See the documentation that comes with the adapter for more information. The failover feature currently is supported by OS/2, Windows NT, and IntraNetWare. The setup required for each operating system follows. Configuring Failover on OS/2 1. Install the redundant NIC adapter according to the instructions provided with the adapter and in "Installing or removing adapters" on page 57. 2. Use the ServerGuide CDs to install the AMD PCNet Ethernet Family adapter device driver. 3. Using the MPTS utility program, select the driver from the list and select the Edit button. Note Only one driver instance needs to be loaded for each redundant pair of Ethernet controllers. 4. Change the PermaNet Server Feature keyword to TRUE and specify the Primary and Standby slots that contain the redundant pair. Refer to "System board illustration" on page 142 for the locations and slot Netfinity 5000 - Type 8659 41

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Failover for redundant Ethernet
The Netfinity 5000 has an integrated Ethernet controller.
The IBM Netfinity 10/100 Fault Tolerant Adapter is an
optional redundant network interface card (NIC adapter)
that you can install in the server.
If you install this NIC
adapter and connect it to the same logical segment as the
primary Ethernet controller, you can configure the server to
support a
failover
function.
You can configure either the
integrated Ethernet controller or the NIC adapter as the
primary Ethernet controller.
In failover mode, if the primary
Ethernet controller detects a link failure, all Ethernet traffic
associated with it is switched to the redundant (secondary)
controller.
This switching occurs without any user
intervention.
Applications with active sessions do not
experience any data loss.
When the primary link is
restored to an operational state, the Ethernet traffic
automatically switches back to the primary Ethernet
controller.
Notes
1.
Only one controller in the redundant pair is active
at any given time.
For example, if the primary
Ethernet controller is active, then the secondary
Ethernet controller cannot be used for any other
network operation.
2.
The operating system determines the maximum
number of IBM Netfinity 10/100 Fault Tolerant
Adapters that you can install in the server.
See
the documentation that comes with the adapter
for more information.
The failover feature currently is supported by OS/2,
Windows NT, and IntraNetWare.
The setup required for
each operating system follows.
Configuring Failover on OS/2
1.
Install the redundant NIC adapter according to the
instructions provided with the adapter and in
“Installing or removing adapters” on page
57.
2.
Use the ServerGuide CDs to install the AMD PCNet
Ethernet Family adapter device driver.
3.
Using the MPTS utility program, select the driver from
the list and select the
Edit
button.
Note
Only one driver instance needs to be loaded for
each redundant pair of Ethernet controllers.
4.
Change the PermaNet Server Feature keyword to
TRUE
and specify the Primary and Standby slots that
contain the redundant pair.
Refer to “System board
illustration” on page
142 for the locations and slot
Netfinity 5000 - Type 8659
41