Owner's Manual

Intel Offline Test clears the gateway entry from /proc/net/route table. If NIC Communication test is run after this, the
test may result in failure.
Connecting or removing USB or CD/DVD devices from Red Hat Enterprise Linux systems, while the enumeration is in
progress, may cause the system to hang.
Resolution: Wait for enumeration to complete, before connection or removing USB or CD/DVD devices from Red Hat
Enterprise Linux systems.
If tapeware is installed, Dell Online Diagnostics may fail to start.
Resolution: Delete the softlink entry /lib/libstdc++-libc6.2-2.so.3 and restart Dell Online Diagnostics. If there are still
issues, contact the Tapeware support team for help.
ICH7R IDE controllers are not supported. Running tests on this controller or the devices connected to it may cause
unexpected behavior.
When you run a SCSI Communication test on a channel that has an LTO3 tape drive connected to it and perform a
backup simultaneously using tar commands, the backup operation may fail.
Resolution: Ensure that backup or restore operations are not in progress before running the SCSI Communication
test.
When the Yosemite backup software is installed on a system that has a tape changer, SCSI Communication tests
and tape tests may fail.
Resolution: Ensure that the Yosemite backup software service is stopped before running these tests.
The Tape Self Test writes to and advances the tape media during execution. Manual erase operations using the
Linux command mt -f/dev/stX erase, if executed immediately after the Tape Self Test execution, will fail with
an I/O error.
Resolution: Avoid this error condition by always rewinding the tape media after running the Tape Self Test.
When a non-root user uses su to become a superuser (root), some tests may not work in the CLI, when the pediags
command is run.
Resolution: Users should use su - to become a super user to run the pediags command.
On SUSE Enterprise Server 10, with ArpArmor enabled and when you run network diagnostics on a console, warning
messages display indicating a violation of policy.
Multiple USB devices, when connected to a deep hierarchy of bus powered USB Hubs, cause the Linux USB device
driver
sub-system to become unresponsive. This prevents Dell Online Diagnostics from launching in the GUI mode.
Resolution: Follow the steps below if faced with this issue:
1. Disconnect the top-level hub connected to the system.
2. Connect external power supply (if supported) to this hub.
3. Disconnect all the devices from the hub.
4. Reconnect the hub to the server.
5. Reconnect the devices on server ports (if available) and to other higher level hub ports having external power
supply, if required.
If the SCIM RPM is installed, keyboard navigation may not function correctly while selecting the Selection Options.
POST Result test will not be available on systems running on Linux operating systems and having an IDE Virtual CD
Drive with ide-cd driver module.
Resolution: Refer to the PSQN No. F25CF0642DD7B211E030030ABD6273EA .
The onboard SATA disks diagnostic tests are not supported. In the Dell Online Diagnostics GUI, the controller and
the tests are disabled and the message Diagnostic tests are not supported on the device displays in the
Configuration tab. On VMWare, running the pediags idedevdiag --show command does not enumerate the
SATA disks.