Appendix. Troubleshooting and additional resources
In this section you can find troubleshooting tips and a list of additional resources for the N3220 filer.
Troubleshooting tips
Use these instructions if your N3220 system does not boot when you power it on.
Follow these troubleshooting tips in the order shown here.
1.
Look for a description on the console. Follow the instructions, if provided, on the console.
2.
Check all cables and connections, making sure that they are secure.
3.
Ensure that power is supplied and is reaching your system from the power source.
4.
Check the power supplies on your system and attached storage expansion units. If the LEDs on a
power supply are not illuminated, remove the power supply and reinstall it, making sure that it
connects with the backplane.
5.
Verify disk compatibility and check the disk shelf IDs for your storage expansion units:
v
For Fibre Channel storage expansion units:
Within each loop, the storage expansion unit with disk shelf ID 1 must be directly connected to
your system. All other storage expansion units within each loop must have unique IDs (between 2
and 7) and must be placed in consecutive order.
v
For SAS storage expansion units:
All storage expansion units must have unique shelf IDs between 00 and 98.
For more information about shelf ID requirements, see the
Hardware and Service Guide
for your N
series IBM N series storage expansion unit.
6.
Ensure that the storage expansion unit speeds are set correctly:
v
EXN1000, set to 2 Gb
v
EXN4000, set to 4 Gb
Note:
SAS storage expansion units do not have speed switches.
7.
Turn off your system and storage expansion units, and then turn on the storage expansion units.
Check the
Platform Monitoring Guide
for your N series storage expansion units for information about
LED responses.
8.
Use the system-level diagnostics to check the disks. For more information, see the
IBM System Storage
N series System-Level Diagnostics Guide
.
9.
If your system does not boot successfully, it might not have the boot image downloaded on the boot
device. Call IBM Service and Support at 1-800-IBM-SERV (1-800-426-7378).
Additional resources
Here you can find sources for additional information about the N3220 filer.
© Copyright IBM Corp. 2013
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