Home Database Mysql Tutorial 关于Oracle与Linux及虚拟化战略

关于Oracle与Linux及虚拟化战略

Jun 07, 2016 pm 04:53 PM
linux tutorial oracle

Oracle的Linux策略,平台用的是完完全全拷贝rhel(他们vp说出了logo和brand之外,everything),只是加了Oracle Linux管理包和Or

参加了Oracle的开源技术日,实际上对Oracle db和开源都没什么接触,一直都是ms产品和cisco的拥趸,不过免费的学习机会,了解一些,拓宽一下知识面也是不错的。

Oracle的Linux策略,平台用的是完完全全拷贝rhel(他们vp说出了logo和brand之外,everything),只是加了Oracle Linux管理包和Oracle群集件这两个软件包,还有就是号称比rh的最高级support服务还要好的三级服务体系,所以Oracle还敢把这种抄袭出来的Linux叫做ubl(unbreakable Linux,“Oracle坚不可摧的Linux”)。怪不得网上有好事者专门制作了ufl(unfakeable Linux),呵呵

关于Oracle与Linux及虚拟化战略

Oracle的虚拟化战略,产品名称叫Oracle VM server,改自XEN的产品(开源就是好啊,要啥拿过来用就是了,不像ms的东西,别说拿过来当商业化产品开发,就是盗版来使用,都能给你黑屏喽),是paravirtualization(准虚拟化),,也就是它的host os需要专门为虚拟化进行改造,对应的是full virtualization,产品是vmware workstation,详细的虚拟化技术类别见另外一篇blog。Oracle自己开发了Oracle VM manager(有虚机的lifecycle manager功能),用户通过VM manager进行访问和管理虚机,是web console的。然后在网上提供几个预打包、预配置的module供用户下载之后来直接在ovm上使用。没用过xen,不知道哪些是Oracle自己的东西,从讲座上知道的有这些东西:服务器池(server pool,开源软件的福气,不像vmware ms这种企业级产品都要钱),module、image(硬机转成image,然后导入ovm成为虚机使用)、iso安装、网络安装四种方式生成ovm内的虚机,master、utility、vm server三种服务器硬件角色组成Oracle 虚拟化平台,master为一台硬件服务器,管理所有虚机并负责各个虚机的ha(high availability)和dr(disaster recovery),utility也是一台硬件服务器,做的是creating, removing, migrating, and so on of I/O intensive operations,vm server可以有若干个,上面跑无限个虚机,vm server负责监控这些虚机的性能和操作。master down掉了,有utinity接管,utility再down掉了,整个ovm平台也就跨掉了,无论vm server还是不是好的。

linux

Statement of this Website
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

Hot AI Tools

Undresser.AI Undress

Undresser.AI Undress

AI-powered app for creating realistic nude photos

AI Clothes Remover

AI Clothes Remover

Online AI tool for removing clothes from photos.

Undress AI Tool

Undress AI Tool

Undress images for free

Clothoff.io

Clothoff.io

AI clothes remover

Video Face Swap

Video Face Swap

Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Tools

Notepad++7.3.1

Notepad++7.3.1

Easy-to-use and free code editor

SublimeText3 Chinese version

SublimeText3 Chinese version

Chinese version, very easy to use

Zend Studio 13.0.1

Zend Studio 13.0.1

Powerful PHP integrated development environment

Dreamweaver CS6

Dreamweaver CS6

Visual web development tools

SublimeText3 Mac version

SublimeText3 Mac version

God-level code editing software (SublimeText3)

How to check tablespace size of oracle How to check tablespace size of oracle Apr 11, 2025 pm 08:15 PM

To query the Oracle tablespace size, follow the following steps: Determine the tablespace name by running the query: SELECT tablespace_name FROM dba_tablespaces; Query the tablespace size by running the query: SELECT sum(bytes) AS total_size, sum(bytes_free) AS available_space, sum(bytes) - sum(bytes_free) AS used_space FROM dba_data_files WHERE tablespace_

How to view instance name of oracle How to view instance name of oracle Apr 11, 2025 pm 08:18 PM

There are three ways to view instance names in Oracle: use the "sqlplus" and "select instance_name from v$instance;" commands on the command line. Use the "show instance_name;" command in SQL*Plus. Check environment variables (ORACLE_SID on Linux) through the operating system's Task Manager, Oracle Enterprise Manager, or through the operating system.

How to encrypt oracle view How to encrypt oracle view Apr 11, 2025 pm 08:30 PM

Oracle View Encryption allows you to encrypt data in the view, thereby enhancing the security of sensitive information. The steps include: 1) creating the master encryption key (MEk); 2) creating an encrypted view, specifying the view and MEk to be encrypted; 3) authorizing users to access the encrypted view. How encrypted views work: When a user querys for an encrypted view, Oracle uses MEk to decrypt data, ensuring that only authorized users can access readable data.

How to uninstall Oracle installation failed How to uninstall Oracle installation failed Apr 11, 2025 pm 08:24 PM

Uninstall method for Oracle installation failure: Close Oracle service, delete Oracle program files and registry keys, uninstall Oracle environment variables, and restart the computer. If the uninstall fails, you can uninstall manually using the Oracle Universal Uninstall Tool.

How to delete all data from oracle How to delete all data from oracle Apr 11, 2025 pm 08:36 PM

Deleting all data in Oracle requires the following steps: 1. Establish a connection; 2. Disable foreign key constraints; 3. Delete table data; 4. Submit transactions; 5. Enable foreign key constraints (optional). Be sure to back up the database before execution to prevent data loss.

How to set up users of oracle How to set up users of oracle Apr 11, 2025 pm 08:21 PM

To create a user in Oracle, follow these steps: Create a new user using the CREATE USER statement. Grant the necessary permissions using the GRANT statement. Optional: Use the RESOURCE statement to set the quota. Configure other options such as default roles and temporary tablespaces.

How to check invalid numbers of oracle How to check invalid numbers of oracle Apr 11, 2025 pm 08:27 PM

Oracle Invalid numeric errors may be caused by data type mismatch, numeric overflow, data conversion errors, or data corruption. Troubleshooting steps include checking data types, detecting digital overflows, checking data conversions, checking data corruption, and exploring other possible solutions such as configuring the NLS_NUMERIC_CHARACTERS parameter and enabling data verification logging.

What to do if the oracle can't be opened What to do if the oracle can't be opened Apr 11, 2025 pm 10:06 PM

Solutions to Oracle cannot be opened include: 1. Start the database service; 2. Start the listener; 3. Check port conflicts; 4. Set environment variables correctly; 5. Make sure the firewall or antivirus software does not block the connection; 6. Check whether the server is closed; 7. Use RMAN to recover corrupt files; 8. Check whether the TNS service name is correct; 9. Check network connection; 10. Reinstall Oracle software.

See all articles