IBM PowerVC adds some features, to the bare, OpenStack code, to make it easy, for IBM power administrators. One such value addition is the presence, of PowerVCs on CLI commands. In this section let's explore a subset, of the PowerVC commands, which may come in handy, while managing, the running services. First of all IBM PowerVC, can only run, on Red Hat Enterprise, Linux. This makes, everything we've learned, about managing Linux services, in the previous course, very relevant. Remember all those system, CTL commands, you can use them to start, stop, and restart services in the IBM PowerVC system. The PowerPC, Services command, can control all, IBM PowerVC services. This includes, OpenStack services as well. You can run it, without mentioning a service, and it knows ,how to control all services, in proper order. Some examples of PowerVCs services, are ego, which stands, for enterprise grid orchestrator. It's used for scheduling, ras, reliability, availability, and serviceability, which is used for, logging ttv, or time, to value, which is used to validate, the IBM, PowerVC environment, and ensure, or prerequisites are met, for setting up IBM PowerVC. Some examples of, OpenStack services are Nova, a computer service, that's responsible, for all powerVM hypervisor communication, as cinder, a volume block service, that includes creating, deleting, attaching, and detaching volumes. Glance and image service that includes creating, deleting, and updating images, or snapshots. Neutron, a networking, service that includes, creating, editing, and deleting, user-defined, networks. We've mentioned a few times, Keystone, and identity service, that is used for, authentication, including token-based, and use it service authorization. Start, and stop services, are not supportive, of Keystone. To say start, and stop, the glance service, you will use the PowerVC services, glance, stop, and PowerVC services glands, start commands. You can also check, the status, of openstack services, using the status attribute, of the powerVC Services Command. Example is shown here to, view all the active services. Let's say, you can't figure out, why the graphical user interface, is unreachable. You could just replace, this command, with inactive, and finds, any inactive services. If the HTTPD, service is inactive, it could explain the unreachable going. You could just start, the service again, and try accessing, the graphical, interface again. That's just a simple example, of how this command, can come in handy. That's it for commands. Just a quick lecture there. Next up, we'll look at backup and restore.
