IBM System Storage N3300, Инструкции по установке и настройке

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Troubleshooting tips
9
If your storage system does not boot when you power it on, follow these troubleshooting tips
in the given order.
1. Look for a description of the problem 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 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 expansion unit compatibility and check the disk shelf IDs.
6. Ensure that the expansion unit speeds are set correctly:
EXN1000, set to 2 Gb
EXN2000, set to 2 Gb
EXN4000, set to 4Gb or 2 Gb, as necessary
EXN2000s and EXN4000s mixed in the same loop, set to 2 Gb
7. Check disk ownership:
a. Make sure there are disks assigned to the system. Enter
b. Verify that there is storage attached to the system. Enter
c. Verify that changes were made. Enter
8. Turn off your system and expansion units, and then turn on the expansion units. Check the
quick reference card that came with the EXN units for information about LED responses.
9. Use the onboard diagnostics to check the disks.
To check SAS disks:
a. Turn on your system and press Ctrl-C. Enter at the firmware (LOADER)
prompt.
b. Enter
in the Diagnostic Monitor program.
c. Enter to select the SAS test menu.
d. Enter to scan and show disks on the selected SAS. This displays the number of
SAS disks.
e. Enter
to show the attached SAS devices.
f. Exit the Diagnostic Monitor by entering at the prompt. Enter the command to
return to LOADER. Start Data ONTAP by entering at the prompt.
To check Fibre Channel disks:
a. Enter in the Diagnostic Monitor program
b. Enter to select the Onboard FC-AL test menu.
c. Enter at the prompt to show attached FC-AL devices.
d. Exit the Diagnostic Monitor by entering at the prompt. Enter the command to
return to LOADER. Start Data ONTAP by entering at the prompt.
10. If your system does not boot successfully, it might not have the boot image downloaded
on the CompactFlash card. Call IBM Service and Support at 1-800-IBM-SERV (1-800-426-
7378).
!
!
!
!
disk show
disk show -v
disk show - v
boot_diags
mb
6
42
72
99 exit
autoboot
mb
5
72
99 exit
autoboot
.
.
.
20