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
Maintenance and Troubleshooting
Reviewing Cluster and Package States with the cmviewcl Command
Chapter 372
Reviewing Cluster and Package States with
the cmviewcl Command
A cluster or its component nodes may be in several different states at
different points in time. Status information for clusters, packages and
other cluster elements is shown in the output of the cmviewcl command
and in some displays in Serviceguard Manager. This section explains the
meaning of many of the common conditions the cluster or package may
be in.
Information about cluster status is stored in the status database, which
is maintained on each individual node in the cluster. You can display
information contained in this database by issuing the cmviewcl
command:
# cmviewcl -v
The command when issued with the -v option displays information
about the whole cluster. See the man page for a detailed description of
other cmviewcl options.
TIP Some commands take longer to complete in large configurations. In
particular, you can expect Serviceguard’s CPU utilization to increase
during cmviewcl -v as the number of packages and services increases.
You can also specify that the output should be formatted as it was in a
specific earlier release by using the -r option indicating the release
format you wish. Example:
# cmviewcl -r A.11.16
See the man page for a detailed description of other cmviewcl options.
Types of Cluster and Package States
A cluster or its component nodes may be in several different states at
different points in time. The following sections describe many of the
common conditions the cluster or package may be in.