XenserverIntroduction
Citrixxenserve is a complete server virtualization platform launched by Citrix. The xenserver software package contains all the features required to create and manage x86 computer deployments running on xen (an open-source semi-virtualized Virtual Machine hypervisor with near local performance. Xenserver has been optimized for both Windows and Linux virtual servers.
Xenserver runs directly on server hardware without the need for the underlying operating system. Therefore, xenserver is an efficient and scalable system. Xenserver extracts elements (such as hard drive, resource, and port) from the physical machine and assigns them to the virtual machine running on the physical machine.
Virtual machines (VMS) are computers completely composed of software. They can run their own operating systems and applications like physical machines. The VM runs in a similar way to a physical machine and includes its own virtual (software-based) CPU, Ram, hard disk, and network interface card (NIC) xenserver can be used to create VMS, generate VM disk snapshots, and manage VM workloads. For a complete list of major xenserver functions, visit www.citrix.com/xenserver.
Xenserver6.2 host system requirements
Although xenserver is usually deployed on server-level hardware, xenserver is also compatible with many workstation and portable computer models. For complete xenserver hardware compatibility, see the compatibility list. Citrix official compatibility list view Address http://www.citrix.com/xenserver/hcl
The xenserver host should be a 64-bit X86 server-level computer dedicated to hosting VM. This computer should run optimized and enhanced Linux partitions and control the interaction between Vm-oriented virtualization devices and physical hardware through the xen kernel.
Xenserver can use:
Up to 1 TB Ram
Up to 16 NICs
Up to 160 logical processors per host
CPU |
One or more 64-bit x86cpu with a clock speed of at least 1.5 GHz. 2 GHz or faster multi-core CPU is recommended. To support VMS running Windows, use an Intel-VT or AMD-V64-bit x86 system with one active multiple CPUs |
Ram |
2 GB at least. 4 GB or above is recommended |
Rom |
The minimum disk space for local storage is 16 GB. We recommend that you use a disk space larger than 60 GB. |
Network |
For NICs larger than 100 Mb/s, one or more GB-level NICs are recommended to achieve faster p2v and export/import data transmission and real-time VM migration. We recommend that you bind multiple NICs to achieve redundancy and prevent spof. |
Xenserver6.2License Introduction
Xenserver is open-source, but only open-source.
Xenserver 6.2.0 replaces previous xenserver Free Edition, advance edition, Enterprise Edition, and platinum edition. In this simplification, the * licensing method for each slot is also introduced. The license is no longer used to enable the specific xenserver function, but it means that xenserver will perform a valid support contract xenserver6.2.0 and does not need to use the License Server or license file to enable the function, all functions are enabled free of charge in the license mode. A license is required only when Citrix support is obtained and xencenter is required to install security and feature patches. You can continue to use the Xe command line to install patches on an unauthorized host.
Xenserver6.2Installation Method
You can install the xenserver host in four ways:
You can download the installer (ISO file format) from CD installation and burn it to CD.
Set a TFTP server that can be accessed through the network to boot through PXE
Install xenserver to a remote disk on the San to allow booting from the San
You can also create a USB flash drive image and start it from the USB flash drive.
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