The procedures in this section detail the high-level tasks required to power off an HPE Cray EX system.
To make sure that the system is healthy before power off and all the information is collected, refer to Prepare the System for Power Off.
To shut down compute nodes and User Access Nodes (UANs), refer to Shut Down and Power Off Managed Nodes.
To power off the external Lustre file system (ClusterStor), refer to Power Off the External Lustre File System.
To power off the external Spectrum Scale (GPFS) file system, refer to site procedures.
To save management switch configuration settings, refer to Save Management Network Switch Configuration Settings.
If any of the external file systems are in air-cooled cabinets shared with air-cooled compute nodes or management nodes, then the power off of the PDU circuits in these cabinets should be delayed until the external Lustre or Spectrum Scale (GPFS) file systems have been cleanly shut down.
To power off standard rack and liquid-cooled cabinet PDUs, refer to Power Off Compute Cabinets.
To power off standard racks which have only storage nodes and switches, refer to Power Off Storage Cabinets.
To shut down the management Kubernetes cluster, refer to Shut Down and Power Off the Management Kubernetes Cluster.
To power off management cabinets, refer to Power Off Management Cabinets.
Lockout Tagout Facility PowerIf facility power must be removed from a single cabinet or cabinet group for maintenance, follow proper lockout-tagout procedures for the site.