Use this information to solve intermittent connectivity
problems.
Single compute node cannot connect intermittently
Complete the following steps until the problem is solved.
- Make sure that the network cables are correctly connected in the
switch module ports and the switch module is correctly seated.
- Update the NIC device driver, or the storage device controller
device driver.
- See the documentation for the I/O module for resolving connectivity
issues.
Two or more compute nodes cannot connect intermittently
Complete the following steps until the problem is solved.
- Using the diagnostic tools that are provided by the device manufacturer,
test the I/O module that the devices are connected to.
- Attempt to connect one compute node to the network first, and
connect other compute nodes, one by one, to try to isolate the problem.
- Update the I/O module firmware, if necessary.
Note: Restarting
the compute node and running POST diagnostics on the I/O module might
also help isolate the problem; however, this might have other ramifications
to the network.