Sometimes, it is necessary to power down all node canisters in a system. For example, you
might need to shut down the system before you do the maintenance actions in your data
center.
Before you begin
Notes:
- It is not necessary to shut down the entire system (all node canisters) when you complete
service actions.
- Service actions upon a node canister require only one node canister in the control enclosure to
be shut down. If one node canister of an I/O group is online and communicating with hosts and other
nodes, volumes that depend on resources of the I/O group can remain online.
Procedure
- Stop all host I/O to volumes on the system.
- Shut down the system by using the management GUI. Click . From the System Actions menu, select Power Off
System.
- Disconnect all four power cords to the control
enclosure.
-
When you are ready to restore power to the control enclosure, follow the appropriate procedures for your system configuration.
-
Powering on the control
enclosures