Linux under oracle11g RAC Construction (i)

Linux under oracle11g RAC Construction (i)

Document description
Author	Blue
Project	Visualbox Analog RAC Build (Dual node) (redhat5+oracle11g)
Environment	RedHat Enterprise5.5, Oracle 11g 11.2.0
Date	April 12, 2014
Version	v1.1
Description	Prepare two virtual machines, Node1 (node 1), Node2 (Node 2), all installed Linux operating systems Another: Because it is finished after the completion of the document, where node 1, node 2 of the naming details will be not uniform, please note when you see. Due to the time relationship, will gradually improve.

RAC Basics

Cluster	Through interconnected nodes, and only a single server is available externally
Features of Cluster	HA (high Available) fault tolerance (Failover), load Balancing (Balance)
HA Environment	Two-Machine hot standby (one node active, one node standby) Dual-machine Interoperability (two nodes are active)
Rac	Real Application Cluster
RAC Features	A database that can be accessed by multiple instance, each node having a instance
Crs	Cluster Ready Service
GRID	When the grid architecture is installed, Oracle is as easy as electricity, and the node is Plug and Play
Asm	Automatic Storage Manager 1. The main purpose of stripe strip is to disperse I/O and provide the performance of reading and writing. 2, Mirror, mirror
RAW	Bare device, the advantage is the access is faster, the disadvantage is unstable, and in the operating system is not easy to manage, Oracle 11g after the removal of the bare device support, 11g began using Oracle's ASM automatic storage Management
More important two disks: 1, the OCR DISK:OCR is used to store the configuration information of the resources on the RAC, the application service running on the RAC is a kind of resource, the distribution of these resources on the RAC will be stored on the OCR disk, 10g was previously stored on raw bare device; 2, VOTE Disk: Used to store the state of each node and the role of arbitration, also known as the arbitral disk.

Virtualbox settings

Create three directories to hold the hard drive

To prepare the operation:

Create three directories to hold disk files: Node1, Node2, Sharedisk

Description

Node1 Storage node 1 disk File

Node2 Storage node 2 disk File

Sharedisk storing shared disk files

Import Node1, Node2 Mirror

Import the experiment into vbox with two mirrors.

"Supplemental": VBox Modify the location of the backup

1. Import Virtual Computer

2. Modify Import Wizard related configuration

Modify the following content:

Cases:

Name: Metro1

Memory: 1580MB

Virtual hard disk: H:\\RAC\RAC1\METRO1-DISK1.VMDK

Tick Reassign MAC Address

3. Import the virtual machine interface as follows:

Configure Storage Node1 Add 30G (local) dynamic disks

Node1 Adding a 20G (shared) fixed disk

1. Create a new disk

2. Select the VDI disk format

3. Select a fixed size (be sure to note)

4, set the virtual disk location information, size information

The size here is set to 20G, not too large, because a fixed size disk is too large to create time will be too long.

Finally click OK.

Node2 adding 30G (local) dynamic disks

Add 30G (local) disks to the same node1.

to modify the shared disk mode under Node1

Setting up a connection shared disk under Node2

Configuring the NIC for Node1 setting bridged adapter NIC 1

Set Host-onlyetherent adapter nic for Node1 2

Set bridged adapter NIC for Node2 1

Setup Bridgedadapter nic with Node1 1

Set Host-only etherent adapter nic for Node2 2set Host-onle Ethernet adapter nic with Node1 2

The preparation for the virtual machine was completed ********************************

Follow up on the next update upload **************************************

Statement:

Original works, from the "Blue Blog" blog, allow the reprint, please be sure to indicate the source (Http://blog.csdn.net/huangyanlong) when reproduced. The author is entitled to be held liable for copyright related matters.