Using Serviceguard Extension for RAC, 6th Edition, April 2008

3 Serviceguard Configuration for Oracle 9i RAC
This chapter shows the additional planning and configuration that is needed to use
Oracle Real Application Clusters 9i with Serviceguard. The following topics are
presented:
“Planning Database Storage”
“Installing Serviceguard Extension for RAC ”
“Creating a Storage Infrastructure with LVM”
“Installing Oracle Real Application Clusters”
“Cluster Configuration ASCII File”
“Creating a Storage Infrastructure with CFS”
“Creating a Storage Infrastructure with CVM”
“Configuring Packages that Access the Oracle RAC Database”
“Using Packages to Configure Startup and Shutdown of RAC Instances”
Planning Database Storage
The files needed by the Oracle database must be placed on shared storage that is
accessible to all RAC cluster nodes. This section shows how to plan the storage using
SLVM, Veritas CFS, or Veritas CVM.
Volume Planning with SLVM
Storage capacity for the Oracle database must be provided in the form of logical volumes
located in shared volume groups. The Oracle software requires at least two log files
(and one undo tablespace for Oracle9) for each Oracle instance, several Oracle control
files and data files for the database itself. For all these files, Serviceguard Extension for
RAC uses HP-UX raw logical volumes, which are located in volume groups that are
shared between the nodes in the cluster. High availability is achieved by using high
availability disk arrays in RAID modes. The logical units of storage on the arrays are
accessed from each node through multiple physical volume links (PV links, also known
as alternate links), which provide redundant paths to each unit of storage.Fill out a
Logical Volume worksheet to provide logical volume names for logical volumes that
you will create with the lvcreate command. The Oracle DBA and the HP-UX system
administrator should prepare this worksheet together. Create entries for shared volumes
only. For each logical volume, enter the full pathname of the raw logical volume device
file. Be sure to include the desired size in MB. Following is a sample worksheet filled
out. However, this sample is only representative. For different versions of the Oracle
database, the size of files are different. Refer to Appendix B: “Blank Planning
Worksheets”, for samples of blank worksheets. Make as many copies as you need. Fill
out the worksheet and keep it for future reference.
ORACLE LOGICAL VOLUME WORKSHEET FOR LVM Page ___ of ____
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