IBM TotalStorage NAS 300 User Reference page 115

Table 12. Alacritech 1000x1 Single-Port Server and Storage Accelerated adapter troubleshooting chart (continued)
Alacritech 1000x1
Single-Port Server and
Storage Accelerated
adapter problem
Event log reports "The
Alacritech 100 or 1000
Series Server Adapter
service failed to start due to
the following error: The
system cannot find the file
specified."
There is no connectivity with
other computers on the
network.
Pinging does not work.
TCP connections can be
established to other systems
on the same subnet, but
connections cannot be
established to systems on
the other side of a router.
IPSEC does not function
through the Alacritech
1000x1 Single-Port Server
and Storage Accelerated
adapter interface.
Suggested action
Update the drivers with the drivers found at: www.ibm.com/storage/support
v Make sure that the cables are attached securely at both RJ-45 connections
(adapter and switch) and that the network cable is functional.
v Check the LEDs on the adapter. These LEDs help indicate if there are problems
with the adapter, switch, or cable.
If you have a Alacritech 1000x1 Single-Port Server and Storage Accelerated adapter
and an adapter from another manufacturer installed on your system, and your network
is configured such that the route from your system to the remote system is different
than the route from the remote system back to your system (a routing loop), then it
might not be possible to establish a TCP connection. To solve this problem, perform
one of the following solutions:
v Replace the existing adapter with an Alacritech 100 or 1000 Series Server Adapter,
or
v Reconfigure the network to eliminate the routing loop, or
v Disable TCP/IP Offload on the interfaces associated with the routing loop by
completing this procedure:
Note: Disabling SLI TCP/IP Offload will disable the performance benefits of the
Alacritech 1000x1 Single-Port Server and Storage Accelerated adapter on that
interface. Complete these steps only when required.
1. From the start menu, open the Network & Dial-up Connections folder located in
the Settings menu.
2. Double-click the LAN connection of the interface you want to disable TCP
Offload.
3. Click the Properties button. Clear the box labeled Alacritech TCP Fast-path
driver. Click OK.
4. Restart the engine.
In order to use IPSEC with the Alacritech 1000x1 Single-Port Server and Storage
Accelerated adapter, disable SLIC TCP/IP Offload on the interface through which you
want to establish the IPSEC connection. To disable the SLIC TCP/IP Offload, complete
these steps:
1. From the start menu, open the Network & Dial-up Connections folder located in
the Settings menu.
2. Double-click the LAN connection of the interface you want to disable TCP Offload.
3. Click the Properties button. Clear the box labeled Alacritech TCP Fast-path driver.
Click OK.
4. Restart the engine.
Chapter 8. Troubleshooting
101