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Oracle® VM Manager User's Guide Release 2.1 Part Number E10901-04 |
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# 4 Managing Servers

There is at least one physical server in a server pool. You can change the parameters or functions of a server, restart it, shut it down, or delete it.

A server pool is expandable. When more virtual machines are running on the server pool and consuming more resources, you can add more Virtual Machine Servers to expand the resources for the server pool, such as the number of CPUs and the size of memory. When there are several Virtual Machine Servers, Server Pool Master chooses the Virtual Machine Server with the maximum resources available (including memory and CPU) to start and run the virtual machine.

You can also add more Utility Servers to enhance the processing ability of the server pool. When there are several Utility Servers, Server Pool Master chooses the Utility Server with the maximum CPU resources available to conduct the task.

However, you can not add more Server Pool Masters, as a server pool can have only one Server Pool Master.

Before you add servers to an existing server pool, you must:

- Identify the IP address, or host name of the computer that functions as the Utility Server or Virtual Machine Server.

- Identify the password to access Oracle VM Agent that has been installed on the computer.

This chapter describes how to manage servers. It includes the following sections:

- Adding a Server

- Viewing and Editing a Server

- Restarting a Server

- Shutting Down a Server

- Deleting a Server

## Adding a Server

To add a Utility Server, or a Virtual Machine Server to an existing server pool, perform the following:

1. On the Servers page, click Add Server. The Add Server page is displayed.

   Figure 4-1 Add Server Page

   Description of "Figure 4-1 Add Server Page"

2. Enter the Oracle VM Server parameters. For information about these parameters, refer to Creating a Server Pool. In addition to the parameters in Creating a Server Pool, you must select a server pool for the Oracle VM Server. Select the search icon in the Server Pool Name field to search for a server pool.

   After adding the server, click OK.

Note:

If you have already registered a physical Oracle VM Server in Oracle VM Manager, you cannot register it again, as this may result in host name or IP address duplication.

## Viewing and Editing a Server

To edit an existing Oracle VM Server, select the server, and click Edit.

Figure 4-2 Editing a Server

Description of "Figure 4-2 Editing a Server"

You can also click the Oracle VM Server link to view general information about the Oracle VM Server. For information about the parameters, see Creating a Server Pool.

Figure 4-3 Viewing and Editing a Server

Description of "Figure 4-3 Viewing and Editing a Server"

## Restarting a Server

You can remotely restart the physical server with Oracle VM Server installed.

To restart a server:

1. On the Servers page, select the server, and click Reboot.

2. If there are virtual machines running on the server, you are prompted to migrate them to another server. Select the virtual machine you want to migrate, and then click Migrate. For information on migrating virtual machines, see Migrating a Virtual Machine.

   If you restart the server without migrating the running virtual machines, the running virtual machines will be shut down, or be restarted, depending on whether high availability is enabled. If you have enabled high availability for both the server pool and virtual machines, the virtual machines will restart on other available servers; otherwise, they will be shut down. For more information about high availability, see Enabling High Availability (HA).

Click Refresh periodically until the server status changes from `Rebooting` to `Active`.

During the restarting process, the server may be temporarily unavailable, and all virtual machines involved are shut down.

## Shutting Down a Server

You can remotely shut down the physical server that performs as the Oracle VM Server.

To shut down a server:

1. On the Servers page, select the server, and then click Power Off.

2. If there are running machines on the server, you are prompted to migrate them to another server. Select the virtual machine you want to migrate, and then click Migrate. For information on migrating virtual machines, see Migrating a Virtual Machine.

   If you shut down the server without migrating the running virtual machines, the running virtual machines will be shut down, or be restarted, depending on whether high availability is enabled. If you have enabled high availability for both the server pool and virtual machines, the virtual machines will restart on other available servers; otherwise, they will be shut down. For more information about high availability, see Enabling High Availability (HA).

Click Refresh periodically until the server status changes from `Shutting Down` to `Unreachable`.

After you shut down the server, virtual machines based on this server cannot be used.

## Deleting a Server

To delete an Oracle VM Server, select it, and then click Delete.

If there are running machines on the server, you are prompted to migrate them to another server. Select the virtual machine you want to migrate, and then click Migrate. For information on migrating virtual machines, see Migrating a Virtual Machine.

You cannot delete a server without migrating any running virtual machines, or shutting them down.

Caution:

When you delete an Oracle VM Server, all virtual machines on the server are no longer available. Ensure that the server is no longer in use before you delete it.