Using Serviceguard Extension for RAC, 2nd Edition, February 2005 Update
Table Of Contents
- Using Serviceguard Extension for RAC
- 1 Introduction to Serviceguard Extension for RAC
- 2 Serviceguard Configuration for Oracle RAC
- Planning Database Storage
- Installing Serviceguard Extension for RAC
- Configuration File Parameters
- Creating a Storage Infrastructure with LVM
- Building Volume Groups for RAC on Mirrored Disks
- Building Mirrored Logical Volumes for RAC with LVM Commands
- Creating RAC Volume Groups on Disk Arrays
- Creating Logical Volumes for RAC on Disk Arrays
- Oracle Demo Database Files
- Displaying the Logical Volume Infrastructure
- Exporting the Logical Volume Infrastructure
- Installing Oracle Real Application Clusters
- Cluster Configuration ASCII File
- Creating a Storage Infrastructure with CVM
- Initializing the VERITAS Volume Manager
- Preparing the Cluster for Use with CVM
- Starting the Cluster and Identifying the Master Node
- Converting Disks from LVM to CVM
- Initializing Disks for CVM
- Creating Disk Groups for RAC
- Creating Volumes
- Oracle Demo Database Files
- Adding Disk Groups to the Cluster Configuration
- Using Packages to Configure Startup and Shutdown of RAC Instances
- Starting Oracle Instances
- Creating Packages to Launch Oracle RAC Instances
- Configuring Packages that Access the Oracle RAC Database
- running cluster:adding or removing packages
- Writing the Package Control Script
- Using Serviceguard Manager to Write the Package Control Script
- Using Commands to Write the Package Control Script
- Customizing the Package Control Script
- Optimizing for Large Numbers of Storage Units
- Customizing the Control Script for RAC Instances
- Configuring an Oracle RAC Instance Package
- Using Serviceguard Manager to a Configure Oracle RAC Instance Package
- Enabling DB Provider Monitoring
- 3 Maintenance and Troubleshooting
- Reviewing Cluster and Package States with the
- Managing the Shared Storage
- Removing ServiceGuard Extension for RAC from a System
- Monitoring Hardware
- Adding Disk Hardware
- Replacing Disks
- Replacement of I/O Cards
- Replacement of LAN Cards
- Monitoring RAC Instances
- A Blank Planning Worksheets
Introduction to Serviceguard Extension for RAC
Larger Clusters
Chapter 1 27
The figure shows a dual Ethernet configuration with all four nodes
connected to a disk array (the details of the connections depend on the
type of disk array). In addition, each node has a mirrored root disk (R
and R'). Nodes may have multiple connections to the same array using
alternate links (PV links) to take advantage of the array's use of RAID
levels for data protection. Alternate links are further described in the
section “Creating RAC Volume Groups on Disk Arrays” on page 42.
Point to Point Connections to Storage Devices
Some storage devices allow point-to-point connection to a large number
of host nodes without using a shared SCSI bus. An example is shown in
Figure 1-6, a cluster consisting of eight nodes with a FibreChannel
interconnect. (Client connection is provided through Ethernet.) The
nodes access shared data on an HP SureStore XP series or EMC disk
array configured with 16 I/O ports. Each node is connected to the array
using two separate F/W SCSI channels configured with PV Links. Each
channel is a dedicated bus; there is no daisy-chaining.