Oracle VM Agent Architecture | Oracle Audio Technologies E10898-02

D

Oracle VM Agent Architecture

This Appendix contains more detailed information on the architecture and deployment options for the Oracle VM Agent. It contains:

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Oracle VM Agent Architecture

Oracle VM Agent Deployment

D.1 Oracle VM Agent Architecture

Oracle VM Agent is installed with Oracle VM Server. Oracle VM Manager manages the virtual machines running on Oracle VM Server through the Oracle VM Agent. Three types of agents are implemented:

■Server Pool Master: This acts as the contact point to the outside world of Oracle VM Server and dispatches to other Oracle VM Agents. It also provides virtual machine host load-balance, and local persistency of Oracle VM Server information.

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Utility Server: This mainly focuses on creating, removing, migrating, and so on of I/O intensive operations.

Virtual Machine Server: The virtual machine server. This is the daemon for Oracle VM Server virtual machines. Virtual Machine Server can start and stop virtual guests. It also collects performance data for the host and guest operating systems. Acts as a hypervisor for domUs.

Figure D–1 Oracle VM Agent

Oracle VM Agent Architecture D-1

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Oracle Audio Technologies E10898-02 manual Oracle VM Agent Architecture

Contents

February E10898-02Page Contents Command-Line Tools Oracle VM Server Configuration File Page Preface Accessibility of Code Examples in Documentation TTY Access to Oracle Support Services Command Syntax Conventions Page Introduction to Virtualization What is Virtualization?Why Virtualize? Xen Technology Xen TechnologyOracle VM Oracle VM Architecture shows the components of Oracle VM Oracle VM 4Oracle VM Server User’s Guide Oracle VM Server Oracle VM Server Hypervisor HypervisorDomains, Guests and Virtual Machines Creating Virtual Machines Management DomainDomains Hardware Virtualization Vs. Paravirtualization Managing Oracle VM Server Repositories Configuring Oracle VM ServerConfiguring Oracle VM Server Oracle VM Agent Oracle VM Agent Command-Line ToolConfiguring Oracle VM Agent Xmlrpc Configuring Oracle VM Agent Deploying Oracle VM Agent Starting Oracle VM AgentStopping Oracle VM Agent Monitoring Oracle VM Agent Remotely Starting a Guest with the Oracle VM Agent API Testing the Oracle VM Agent Connection Deleting a Guest with the Oracle VM Agent Oracle VM Agent UtilitiesRemotely Stopping a Guest with the Oracle VM Agent API Monitoring a Guest with the Oracle VM Agent 6Oracle VM Server User’s Guide Supported Guest Operating Systems Creating a Guest -bit Hypervisor Supported Guest Operating Systems Supported Guest Operating Systems Enabling Registration of Guests with Oracle VM Manager Creating a Guest Using a TemplateCreating a Guest Using a Template Mounting an ISO Creating a Guest Using virt-install Creating a Guest Using virt-install Press Enter Following question is displayed Would you like to enable graphics support yes or no? Creating a Paravirtualized Guest Manually Creating a Paravirtualized Guest ManuallyCreating the Root File System Populating the Root File System Configuring the Guest Creating a Hardware Virtualized Guest Manually Creating a Hardware Virtualized Guest Manually Edit /mnt/etc/sysconfig/network-scripts/ifcfg-eth0 Use VNCViewer to display the guest If you see this error message Restart the guest, using the xm command-line tool Installing Paravirtual Drivers Installing Paravirtual Drivers 16Oracle VM Server User’s Guide Domain Lifecycle Domain Monitoring and AdministrationUsing the xm Command-Line Interface Viewing Host Information Using the xm Command-Line InterfaceMonitoring Domains Using the xm Command-Line Interface 4Oracle VM Server User’s Guide Creating a Shared Virtual Disk for Live Migration Creating a Shared Virtual Disk Using OCFS2 on iSCSIDomain Live Migration Delete entries that you do not want to use, for example Creating a Shared Virtual Disk for Live Migration Creating a Shared Virtual Disk Using OCFS2 on SAN Adding a Shared Virtual Disk Using NFS Migrating a Domain Migrating a Domain 6Oracle VM Server User’s Guide Repository Mount Options Repository Configuration FileManaging Oracle VM Server Repositories Oracle VM Server Repositories Oracle VM Server Repositories Adding a RepositoryRemoving a Repository Command-Line Tools Restart ConfigureStart Stop UUUID --uuid=UUID HelpNname --name=name RRAM --ram=RAM Sdl Bvalue --bridge=valueVnc Vncport=port Arch=arch Os-variant=variantNoapic Xargs --extra-args=args ParavirtLlocation --location=location Vif-type=type Help --long option Console domain-idDestroy domain-id Dmesg --clear Migrate domain-id host -l --live -r=MB --resource=MB =file --defconfig=fileList --long --label domain-id Log Shutdown -a -w domain-id Restore statefile Unpause domain-id Top Oracle VM Server Configuration File Logfile location Oracle VM Server Configuration FileLoglevel Critical or Fatal Error Warn or Warning Info Debug Xend-unix-xmlrpc-server yes no Xend-http-server yes noXend-unix-server yes no Xend-tcp-xmlrpc-server yes no Xend-relocation-address IPAddress Xend-port portXend-relocation-port port Xend-address IPAddress External-migration-tool tool Enable-dump yes noDom0-min-mem memory Dom0-cpus CPUs 6Oracle VM Server User’s Guide Configuration File Example Guest Configuration Files Configuration File Example Oracle VM Agent Architecture Oracle VM Agent Architecture Oracle VM Agent Deployment Oracle VM Agent Deployment Oracle VM Agent Architecture D-3 4Oracle VM Server User’s Guide Oracle VM Server Directories TroubleshootingDebugging Tools Using Dhcp Using DhcpGuest Console Access Oracle VM Server Command-Line Tools Guest Console Access Hardware Virtualized Guest Console Not Displayed Cannot Display Graphical Installer When Creating GuestsCannot Display Graphical Installer When Creating Guests Mouse Pointer Tracking Problems Setting the Guest’s ClockWallclock Time Skew Problems Mouse Pointer Tracking Problems Hardware Virtualized Guest Killed Hardware Virtualized Guest Windows InstallationHardware Virtualized Guest Killed Hardware Virtualized Guest Devices Not Working as Expected CD-ROM Image Not Found Firewall Blocks NFS AccessAttaching to a Console with the Grub Boot Loader TAP Disks with Paravirtualized Guests 8Oracle VM Server User’s Guide Glossary Paravirtualized machine Oracle VM AgentOracle VM Server Oracle VM Manager Virtual Machine VM Utility ServerVif Virtual disk Glossary-4 Index-1 Index Index-2