[PDF] Parallels Server 5 Bare Metal

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Learning Parallels Server 5 Bare Metal Basics At the base resides server hardware. Next is the Parallels Server Bare Metal software which is installed directly on the server hardware and does not need any operating system for its functioning. Parallels Server Bare Metal includes two virtualization layers: • Hardware virtualization layer. This layer provides the necessary environment for creating and managing Parallels virtual machines. • OS virtualization layer. This layer provides the necessary environment for creating and managing Parallels Containers. For more information on both layers, see OS Virtualization Layer (p. 16) and Hardware Virtualization Layer (p. 19). Effectively uniting both virtualization technologies, Parallels Server Bare Metal provides the best value for cost conscious organizations enabling them to: • standardize server hardware platforms • effectively consolidate server resources • consolidate and support legacy OSs and applications • streamline server and application deployment, maintenance, and management • simplify software testing and development • optimize server and application availability Parallels Server Bare Metal allows you to create virtual machines and Containers and Containers and manage them using the same tools you would use on systems running Parallels Server 3.0 and Parallels Virtuozzo Containers 4.0. These tools include: • Command line interface (CLI). This tool comprises a set of Parallels command line utilities and can be used to manage virtual machines and Containers both locally and remotely. • Parallels Management Console. Parallels Management Console is a remote management tool for Parallels Server Bare Metal with a graphical user interface. This tool can be used to manage physical servers and Parallels virtual machines residing on them. 16 Note: In this version of Parallels Server Bare Metal, you cannot use Parallels Management Console to create and manage Parallels Containers. OS Virtualization Layer This section provides detailed information on the OS virtualization layer, one of the two components of Parallels Server Bare Metal, responsible for providing support for Parallels Containers.
Basics of OS Virtualization Learning Parallels Server 5 Bare Metal Basics The OS virtualization allows you to virtualize physical servers on the operating system (kernel) layer. The diagram below shows the basic architecture of OS virtualization. The OS virtualization layer ensures isolation and security of resources between different Containers. The virtualization layer makes each Container appear as a standalone server. Finally, the Container itself houses its own applications and workload. OS virtualization is streamlined for the best performance, management, and efficiency. Its main advantages are the following: • Containers perform at levels consistent with native servers. Containers have no virtualized hardware and use native hardware and software drivers making its performance unbeatable. • Each Container can seamlessly scale up to the resources of an entire physical server. • OS virtualization technology provides the highest density available from a virtualization solution. You can create and run up to 100s of Containers on a standard production physical server. • Containers use a single OS, making it extremely simple to maintain and update across Containers. Applications may also be deployed as a single instance. Parallels Containers From the point of view of applications and Container users, each Container is an independent system. This independence is provided by the Parallels Server Bare Metal OS virtualization layer. Note that only a negligible part of the CPU resources is spent on virtualization (around 1-2%). The main features of the virtualization layer implemented in Parallels Server Bare Metal are the following: • A Container looks like a normal Linux system. It has standard startup scripts; software from vendors can run inside Containers without any modifications or adjustment. • A user can change any configuration file and install additional software inside Containers. • Containers are fully isolated from each other (file system, processes, sysctl variables) and Parallels virtual machines. • Containers share dynamic libraries, which greatly saves memory. • Processes belonging to a Container are scheduled for execution on all available CPUs. Consequently, Containers are not bound to only one CPU and can use all available CPU power. 17
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Page 3 and 4: Contents Introduction .............
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Page 7 and 8: Contents Setting Up Private Network
Page 9 and 10: C HAPTER 1 Introduction This chapte
Page 11 and 12: Documentation Conventions Introduct
Page 13 and 14: Feedback Introduction If you spot a
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Page 19 and 20: Parallels Server Bare Metal Configu
Page 21 and 22: Parallels Virtual Machines Learning
Page 23 and 24: Virtual Machine Files Learning Para
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Page 29 and 30: Managing Virtual Machines and Conta
Page 31 and 32: Supported Guest Operating Systems M
Page 33 and 34: Choosing a Container ID Managing Vi
Page 35 and 36: Configuring Network Settings Managi
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Managing Virtual Machines and Conta
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C HAPTER 4 Managing Resources The m
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Managing Resources Managing CPU Sha
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Managing Resources Configuring the
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Managing Resources Configuring CPU
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Managing Resources Turning On and O
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Managing Resources Checking Quota S
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Managing Resources Moving Container
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Managing Resources Detaching Contai
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Managing Resources Configuring Netw
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Managing Resources Viewing Network
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Managing Resources Configuring Netw
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Managing Resources Configuring Prio
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Managing Resources Saved parameters
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Managing Resources This output show
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Managing Resources In this example,
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Managing Resources Configuring Lega
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Managing Resources Configuring Addi
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Managing Resources To revert to the
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Managing Resources Managing Contain
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Managing Resources Scaling Containe
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Managing Resources Applying New Con
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Managing Services and Processes Wha
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Managing Services and Processes Man
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Managing Services and Processes The
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Managing Services and Processes Cha
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C HAPTER 6 Managing Parallels Serve
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Managing Parallels Server Bare Meta
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Managing Licenses Installing the Li
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Managing Licenses Transferring the
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Managing Licenses Viewing the Licen
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Managing Licenses 202 key_number="P
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Keeping Your System Up To Date Upda
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Advanced Tasks Creating VZFS Symlin
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Advanced Tasks Capabilities Defined
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Advanced Tasks Creating Customized
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Advanced Tasks # vzmktmpl /root/cen
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Advanced Tasks 224 • %packages: a
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Advanced Tasks # rpm -ihv /root/mys
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Advanced Tasks Obtaining Server ID
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Advanced Tasks Setting Immutable an
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Advanced Tasks LowTotal: 8000 kB Lo
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Advanced Tasks Loading iptables Mod
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Advanced Tasks Creating Configurati
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Advanced Tasks %KM Kernel memory us
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Advanced Tasks Checking partition a
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Advanced Tasks The number of cylind
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Advanced Tasks Running Parallels Se
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C HAPTER 10 Troubleshooting This ch
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Troubleshooting (The 65531 ports sc
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Troubleshooting Saving Kernel Fault
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Troubleshooting Failure to Start a
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Troubleshooting Getting Technical S
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Troubleshooting In this window, you
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Troubleshooting Establishing Secure
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C HAPTER 11 Glossary This glossary
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Index Index A About This Guide - 9
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Index Managing Memory Resources for
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