Oracle Database 11g Release 2 Real Application Clusters with SLVM/RAW on HP-UX Installation Cookbook, September 2010

Oracle RAC 11g Cluster Preparation Steps

In this section, we provide examples of command sequences that can be used to prepare the cluster.

All examples demonstrate how storage is configured using new Next Generation Mass storage Stack

introduced with HP-UX 11.31. This new I/O stack provides native multi-pathing and load balancing,

as well as agile and persistent addressing. Using the agile address, HP-UX will automatically and

transparently use the redundant path for the LUN in the background.

SLVM Configuration

To use shared raw logical volumes, HP Serviceguard Extensions for RAC must be installed on all

cluster nodes. For a basic database configuration with Shared Logical Volume Manager (SLVM), the

following shared logical volumes are required. Note that in this scenario, one SLVM volume group is

used for Oracle Clusterware and one SLVM volume group is used for database files. In cluster

environment with more than one RAC database, it is recommended to have separate SLVM volume

groups for each RAC database.

Table 2: SLVM lvols required for Clusterware and RAC database setup

Create Device for File Size Sample Name

<dbname> should be

replaced with your database

name.

Comments

Oracle Cluster Repository

(OCR)

1024 MB ora_ocr_1024m You need to create this raw logical

volume only once in the cluster, if you

create more than one database, they all

will share the same OCR.

Oracle Voting disk 512 MB ora_vote_512m You need to create this raw logical

volume only once in the cluster, if you

create more than one database, they all

will share the same voting disk.

SYSTEM tablespace 1300 MB <dbname>_system_1300m

SYSAUX tablespace 1300 MB <dbname>_sysaux_1300m

One Undo tablespace per

instance

508 MB <dbname>_undotbs2_508m

EXAMPLE tablespace 168 MB <dbname>_example_168m

USERS tablespace 128 MB <dbname>_users_128m

Two ONLINE Redo log files

per instance

128 MB <dbname>_redo1_1_128m

<dbname>_redo1_2_128m

<dbname>_redo2_1_128m

<dbname>_redo2_2_128m

First and second control file 118 MB <dbname>_control1_118m

<dbname>_control2_118m

TEMP tablespace 258 MB <dbname>_temp_258m

Server parameter file 5 MB <dbname>_spfile_raw_5m

Password file 5 MB <dbname>_pwdfile_5m