Building Oracle11gRAC in linux (1)

Building Oracle11g RAC in linux (1)

Document Description
Author	Deep Blue
Project	Simulate RAC construction in Visualbox (dual-node) (Redhat5 + Oracle11G)
Environment	RedHat performanise5.5, Oracle 11g 11.2.0
Date	April 12, 2014
Version	V1.1
Description	Prepare two virtual machines, node1 (node 1) and node2 (node 2). the linux operating system has been installed. In addition, the document is compiled after the building. The naming details of Node 1 and node 2 are different. Please note when referring to this document. Due to the time relationship, it will gradually improve.

Basic RAC knowledge

Cluster	Only a single server
Cluster Features	HA (High Available) fault tolerance (Failover) and load balancing (Balance)
HA Environment	Hot standby (one node is active and one node is standby) Dual-host mutual backup (both nodes are active)
RAC	Real Application Cluster
RAC features	A database can be accessed by multiple instances. Each node has an instance.
CRS	Cluster Ready Service
GRID	After the grid architecture is installed, oracle is as convenient as electricity, and the node is plug-and-play.
ASM	Automatic storage manager 1. strip is mainly used to distribute I/O and provide read/write performance. 2. Image, mirror
RAW	Bare devices have fast access, but are unstable and inconvenient to manage in the operating system. The bare devices are not supported after the oracle 11g, use oracle's asm for Automatic Storage Management at 11 GB
Two important disks: 1. OCR disk: ocr is used to store configuration information related to resources on RAC. On RAC, the running application service is a kind of resource, the distribution of these resources on RAC will be stored on the OCR disk, and 10 Gb is previously stored on RAW bare devices; 2. VOTE disk: used to store the status of each node and the role of arbitration. It is also called an arbitration disk.

Virtualbox settings create three directories to store hard disks

Preparation:

Create three directories to store Disk Files: node1, node2, and sharedisk

Note:

Node1 stores Node 1 Disk Files

Node2 stores Node 2 Disk Files

Sharedisk stores shared Disk Files

Import node1 and node2 Images

Import the experiment to Vbox using two images.

[Supplement]: vbox modifies the backup location.

 

1. Import a virtual computer

2. modify the configuration of the import wizard.

Modify the following content:

Example:

Name: metro1

Memory: 1580 MB

Virtual hard drive: H: \ rac \ rac1 \ metro1-disk1.vmdk

Check to reassign a MAC address

 

3. The import virtual machine interface is as follows:

Configure storage node1 to add a 30G (local) Dynamic Disk

 

 

Add a 20G (shared) Fixed Disk to node1

1. Create a New Disk

 

2. Select VDI disk format

 

3. Select a fixed size (Be sure to pay attention)

 

4. Set the Virtual Disk location and size

The disk size is set to 20 GB. It does not need to be too large because it takes too long to create a fixed-size disk.

 

Click OK.

Add a 30 GB Dynamic Disk to node2

Add a 30G (local) disk to node1.

Modify the shared disk mode in node1.

Set a connection to a shared disk under node2.

 

Configure the NIC to set Bridged Adapter Nic 1 for node1

 

Set Host-onlyEtherent Adapter Nic 2 for node1

 

Set Bridged Adapter Nic 1 for node2

Set BridgedAdapter Nic 1 with node1

Set Host-only Etherent Adapter Nic 2 for node2 and Host-onle Ethernet Adapter Nic 2 for node1.

************************** About the virtual machine preparation completed ******* *************************

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Statement:

Original works, from "Deep Blue blog" blog, allow reprint, reprint please be sure to indicate the source (http://blog.csdn.net/huangyanlong ). The author has the right to pursue legal liability for copyright issues.