Oracle推最新版Oracle VM服务器虚拟软件-Mysql Tutorial-php.cn

Home

Database

Mysql Tutorial

Oracle推最新版Oracle VM服务器虚拟软件

WBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWB

Jun 07, 2016 pm 04:55 PM

oracle

日前在2009甲骨文全球大会上，甲骨文公司宣布最新版Oracle服务器虚拟化软件Oraclereg; VM 2.2正式上市，现在客户可以加速部

　　日前在2009甲骨文全球大会上，甲骨文公司宣布最新版Oracle服务器虚拟化软件Oracle? VM 2.2正式上市，现在客户可以加速部署并简化企业应用的管理，以最环保和最高效的方式运行数据中心，同时降低成本。

　　Oracle VM 2.2具有基于Xen的最新业界标准管理程序Xen 3.4，可使运行在基于英特尔微型架构的英特尔至强5500系列处理器(代码名为Nehalem)以及6核AMD皓龙处理器的客户系统大幅提高性能。

　　Oracle VM 2.2具有新的CPU电源管理、内存管理和直接磁盘I/O功能。

　　此外，这一版还实现了Oracle VM与Virtual Iron技术的首次集成，从而使客户能够非常容易地将Virtual Iron虚拟机迁移到Oracle VM图像上。

　　Oracle VM支持Oracle和非Oracle应用，，为客户提供以甲骨文世界级支持服务为后盾的可扩展、低成本的服务器虚拟化。

　　实现更高性能

　　通过利用最新的Xen 3.4管理程序和更新的基于Oracle企业级Linux 5.3的dom0内核，Oracle VM 2.2可支持更广泛的硬件，提高硬件虚拟化和并行虚拟化客户的性能、可扩展性和安全性。硬件虚拟化客户操作系统的性能也得到提高，其中包括Microsoft Windows操作系统。

　　Oracle VM 2.2升级了对Oracle集群文件系统(OCFS2)1.4的支持，利用稀疏文件支持等先进功能，实现更快的虚拟机配置和复制，并帮助用户增强对文件数据分配的控制，从而提高性能和存储效率。

　　Oracle VM 2.2增加了对多路存储设备的直接支持，这种存储设备可以分配给虚拟机，并提高集群应用的性能。

　　环保功能、简化管理、节省成本

　　通过利用Xen 3.4管理程序，Oracle VM 2.2还提供效率更高的CPU电源管理功能，从而实现了更加环保的计算，节省了成本。

　　通过允许用户在虚拟机中设定虚拟CPU的时序排列优先权，和限制每个虚拟机最多可使用多少CPU时间(按百分比计算)，Oracle VM 2.2中的资源管理也得到了加强。由于增强了资源管理，用户现在可以通过直观的Oracle VM管理器浏览界面控制CPU、网络和磁盘I/O的服务质量(QoS)。

　　Oracle VM 2.2的其他增强功能包括：增强了多种用户界面功能，提高了服务器池主代理自动失效转移的可用性并增强了服务能力和审计功能。

linux

Statement

The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn

MySQL's Role: Databases in Web ApplicationsApr 17, 2025 am 12:23 AM

The main role of MySQL in web applications is to store and manage data. 1.MySQL efficiently processes user information, product catalogs, transaction records and other data. 2. Through SQL query, developers can extract information from the database to generate dynamic content. 3.MySQL works based on the client-server model to ensure acceptable query speed.

MySQL: Building Your First DatabaseApr 17, 2025 am 12:22 AM

The steps to build a MySQL database include: 1. Create a database and table, 2. Insert data, and 3. Conduct queries. First, use the CREATEDATABASE and CREATETABLE statements to create the database and table, then use the INSERTINTO statement to insert the data, and finally use the SELECT statement to query the data.

MySQL: A Beginner-Friendly Approach to Data StorageApr 17, 2025 am 12:21 AM

MySQL is suitable for beginners because it is easy to use and powerful. 1.MySQL is a relational database, and uses SQL for CRUD operations. 2. It is simple to install and requires the root user password to be configured. 3. Use INSERT, UPDATE, DELETE, and SELECT to perform data operations. 4. ORDERBY, WHERE and JOIN can be used for complex queries. 5. Debugging requires checking the syntax and use EXPLAIN to analyze the query. 6. Optimization suggestions include using indexes, choosing the right data type and good programming habits.

Is MySQL Beginner-Friendly? Assessing the Learning CurveApr 17, 2025 am 12:19 AM

MySQL is suitable for beginners because: 1) easy to install and configure, 2) rich learning resources, 3) intuitive SQL syntax, 4) powerful tool support. Nevertheless, beginners need to overcome challenges such as database design, query optimization, security management, and data backup.

Is SQL a Programming Language? Clarifying the TerminologyApr 17, 2025 am 12:17 AM

Yes,SQLisaprogramminglanguagespecializedfordatamanagement.1)It'sdeclarative,focusingonwhattoachieveratherthanhow.2)SQLisessentialforquerying,inserting,updating,anddeletingdatainrelationaldatabases.3)Whileuser-friendly,itrequiresoptimizationtoavoidper

Explain the ACID properties (Atomicity, Consistency, Isolation, Durability).Apr 16, 2025 am 12:20 AM

ACID attributes include atomicity, consistency, isolation and durability, and are the cornerstone of database design. 1. Atomicity ensures that the transaction is either completely successful or completely failed. 2. Consistency ensures that the database remains consistent before and after a transaction. 3. Isolation ensures that transactions do not interfere with each other. 4. Persistence ensures that data is permanently saved after transaction submission.

MySQL: Database Management System vs. Programming LanguageApr 16, 2025 am 12:19 AM

MySQL is not only a database management system (DBMS) but also closely related to programming languages. 1) As a DBMS, MySQL is used to store, organize and retrieve data, and optimizing indexes can improve query performance. 2) Combining SQL with programming languages, embedded in Python, using ORM tools such as SQLAlchemy can simplify operations. 3) Performance optimization includes indexing, querying, caching, library and table division and transaction management.

MySQL: Managing Data with SQL CommandsApr 16, 2025 am 12:19 AM

MySQL uses SQL commands to manage data. 1. Basic commands include SELECT, INSERT, UPDATE and DELETE. 2. Advanced usage involves JOIN, subquery and aggregate functions. 3. Common errors include syntax, logic and performance issues. 4. Optimization tips include using indexes, avoiding SELECT* and using LIMIT.

See all articles