Powering Off When Clustering Is Active; Emergency Shutdown - IBM TotalStorage 300 Service Manual

Powering off when clustering is active

1. Make note of the order in which you shut down the nodes.
2. On the node you want to shut down last (the second node), click Cluster
3. With all clustered resources in the online state, on the node you want to shut
4. On the second node, in Cluster Administrator, wait for all resources to fail over
5. Once all resources are in the online state, and the first node has shut down, on
6. Once both nodes have shut down, power off each 5191 RAID Storage
7. Power off all 5192 Network Attached Storage Storage Units and 3534 Managed
8. You may power down any network hubs or switches that are used exclusively
9. You may also power off any Uninterruptible Power Supplies (UPS) that regulate

Emergency Shutdown

This section contains instructions for emergency circumstances.
If you are turning on the IBM NAS 300 after an emergency shutdown or power
outage, refer to "Restoring power after an emergency".
Performing an emergency shutdown
Attention:
conditions, or other hazardous circumstances. If a power outage or emergency
situation occurs, always turn off all power switches on all computing equipment.
This will help safeguard your equipment from potential damage due to electrical
surges when power is restored. If the IBM NAS 300 loses power unexpectedly, it
might be due to a hardware failure in the power system.
Use this procedure to shut down during an emergency.
1. If you have time, stop all activity and check the LEDs (front and back). Make
2. Turn off all power supply switches; then, unplug both external power cords from
Restoring power after an emergency
Use this procedure to restart the IBM NAS 300 if you turned off the power supply
switches during an emergency shut down, or if a power failure or a power outage
occurred.
You shut the nodes down one at a time, and in the powering on procedure you
start the nodes in the opposite order in which you powered them off.
Administration, located in IBM NAS Admin, in the Cluster Tools folder. If
prompted for a cluster name, enter the name of the cluster, and then click
Open. Make sure that all resources are in the online state.
down first (the first node), go to Start, Shut Down and select Shut down from
the drop down menu. Click OK.
to 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.
Controller by pressing the two power switches located on the rear of the unit.
Hubs.
by the Model 325. If they are used by other network attached devices, do not
power these off.
power for the Model 325, provided that no other equipment that you wish to
keep powered on is plugged into the same UPS.
Emergency situations might include fire, flood, extreme weather
note of any Fault LEDs that are lit so you can correct the problem when you
turn on the power again.
the IBM NAS 300.
Chapter 3. Troubleshooting
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