Dell PowerStore 1200T EMC PowerStore Power Down and Reboot Procedures Guide - Page 5

1 Introduction Use the procedures in this document to power off or reboot your PowerStore appliances, nodes, or cluster gracefully. As part of a robust disaster recovery plan, it is recommended that you print and follow this procedure to test the planned shutdown and restart procedures. Topics: • Power control procedure considerations • Power control procedures preview Power control procedure considerations Note the following before you get started: ● Powering off a node, appliance, or cluster can take several minutes to complete. ● In a true emergency power off situation, turn the cabinet power switches to the off position to immediately remove power from the all cabinet components. ● Working with hardware may cause electrostatic discharge that could damage your hardware. Before working with any hardware, take precautions around handling replaceable units. See Safety precautions for handling replaceable units on page 20. ● If you are relocating or replacing hardware, to help identify associated enclosures when you are ready to cable and power on: ○ Ensure that you make a note of the cabling between enclosures and the appliances. If you used cable labels at the time of initial installation, reconnecting the cables is easier. ○ Ensure that you also record the Dell service tag numbers of all enclosures in your cluster. ● A PowerStore X model appliance consists of two ESXi host nodes (node A and node B), running VMware ESXi version 7.0.3, and a controller VM on each that runs the PowerStore operating environment. Powering off a PowerStore X model node or cluster requires operations in the associated VMware vCenter server. See the VMware documentation for more information about the vCenter server commands. ● Nodes in the appliance power on into the same mode they were in before the appliance was powered off. If a node powers on in service mode: 1. Log in to the appliance from an SSH client. 2. Run the svc_rescue_state clear command to clear the boot mode. 3. Run the svc_node reboot command. ○ For a PowerStore T model node, this command reboots the node itself. ○ For a PowerStore X model node, only the PowerStore controller VM gets rebooted. Once rebooted, the node returns to normal mode. NOTE: The svc_node service script, with reboot and shutdown arguments, is typically used in the context of rebooting or powering off a PowerStore T model node. Use the VMware vCenter server commands to reboot or power off a PowerStore X model node. In PowerStore X model nodes, running the svc_node service script with reboot or shutdown arguments only affects the PowerStore controller VM. Unless specifically directed by your service provider, for PowerStore X model appliances, use the svc_node service script only for the following purposes: ○ Go out of service mode (reboot argument). ○ Power on the node (power_on argument). For more information about the service scripts, see the PowerStore Service Scripts Guide. ● If both nodes in an appliance reboot in service mode, always return Node A to normal mode first to avoid management software conflicts. After Node A is operating normally, you can return Node B to normal mode. Introduction 5