Powering On The Nas Gateway 300 When Clustering Is Active; Diagnostic Tools Overview - IBM TotalStorage NAS 300 User Reference

3. With all clustered resources in the online state, on the node that you want to
4. On the second node, in Cluster Administrator, wait for all resources to failover to
5. When all resources are in the online state, and the first node has shut down, on
6. You can power off any network hubs or switches that are used exclusively by
7. You can also power off any uninterruptible power supplies (UPS) that regulate

Powering on the NAS Gateway 300 when clustering is active

1. Power on any UPS that you powered off in the powering off procedure, and
2. Power on any network hubs or switches that you powered off in the powering off
3. Power on the node that you shut down last in the powering off procedure.
4. After the node comes up, start Cluster Administrator on that node and make
5. If no problems exist and all clustered resources are online, power on the node

Diagnostic tools overview

The following tools are available to help you identify and resolve hardware-related
problems:
v Light-path diagnostics
v Diagnostic programs and error messages
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NAS Gateway 300 User's Reference
shut down first (the first node), go to Start → Shut Down and select Shut down
from the drop-down menu. Click OK.
that node and return to the online state.
the second node go to Start → Shutdown and select Shut down from the
drop-down menu. Click OK.
the NAS Gateway 300. If they are used by other network attached devices, do
not power these off.
power for the NAS Gateway 300, provided that no other equipment that you
want to keep powered on is plugged into the same UPS.
allow it to return to normal operation.
procedure.
sure that all resources are in an online state or shortly return to that state.
that you shut down first in the powering off procedure. Each resource for which
that node is the preferred owner will fail back to that node and return to an
online state.
If a problem does exist, see the appropriate section of this chapter or
Appendix D, "Symptom-to-part index" on page 123 for more information on
identifying and resolving problems.
LEDs help you identify problems with NAS Gateway 300 components. These
LEDs are part of the light-path diagnostics that are built into your NAS Gateway
300. By following the path of lights, you can quickly identify the type of system
error that occurred. See "Identifying problems using LEDs" on page 89 for more
information.
The diagnostic programs are stored in upgradable read-only memory (ROM) on
the system board. These programs are the primary method of testing the major
components of your NAS Gateway 300. See "Diagnostic programs" on page 93
for more information.
Note: You must connect a keyboard, mouse, and monitor to your appliance in
order to see error messages. If the engine does not recognize the monitor,
keyboard, and mouse, reboot the engine while they are connected. If a
Remote Supervisor Adapter is used for system management, the logs can