Oracle Database Oracle Clusterware Installation Guide for HP-UX

Configuring Disks for Database Files on Raw Devices
Table 5–4 Raw Disk Devices Required for Database Files on HP-UX
Number Size (MB) Purpose and Sample Alternative Device File Name
1 800 SYSTEM tablespace:
dbname_system_raw_800m
1 400 + (Number of
instances * 250)
Number of
instances
1. If you intend to use raw disk devices for database file storage, then choose a name
for the database that you want to create.
The name that you choose must start with a letter and have no more than four
characters, for example, orcl.
2. Identify or configure the required disk devices.
The disk devices must be shared on all of the cluster nodes.
3. To ensure that the disks are available, enter the following command on every
node:
# /usr/sbin/ioscan -fun -C disk
5-18 Oracle Clusterware Installation Guide
SYSAUX tablespace:
dbname_sysaux_raw_900m
500 UNDOTBSn tablespace (One tablespace for each instance,
where n is the number of the instance):
dbname_undotbsn_raw_500m
1 250 TEMP tablespace:
dbname_temp_raw_250m
1 160 EXAMPLE tablespace:
dbname_example_raw_160m
1 120 USERS tablespace:
2 * number
of instances
dbname_users_raw_120m
120 Two online redo log files for each instance (where n is the
number of the instance and m is the log number, 1 or 2):
dbname_redon_m_raw_120m
2 110 First and second control files:
dbname_control{1|2}_raw_110m
1 5 Server parameter file (SPFILE):
dbname_spfile_raw_5m
1 5 Password file:
dbname_pwdfile_raw_5m
The output from this command is similar to the following:
Class I H/W Path Driver S/W State H/W Type Description
==========================================================================
disk 0 0/0/1/0.6.0 sdisk CLAIMED DEVICE HP DVD-ROM 6x/32x
/dev/dsk/c0t6d0 /dev/rdsk/c0t6d0
disk 1 0/0/1/1.2.0 sdisk CLAIMED DEVICE SEAGATE ST39103LC
/dev/dsk/c1t2d0 /dev/rdsk/c1t2d0
This command displays information about each disk attached to the system,
including the character raw device name (/dev/rdsk/cxtydz).