Oracle Database Oracle Clusterware Installation Guide for HP-UX

Configuring Disks for Database Files on Raw Devices
4. If the ioscan command does not display device name information for a device
that you want to use, then enter the following command to install the special
device files for any new devices:
# /usr/sbin/insf -e
5. For each disk that you want to use, enter the following command on any node to
verify that it is not already part of an LVM volume group:
# /sbin/pvdisplay /dev/dsk/cxtydz
If this command displays volume group information, then the disk is already part
of a volume group. The disks that you choose must not be part of an LVM volume
group.
Note: If you are using different volume management software, for
example VERITAS Volume Manager, then refer to the appropriate
documentation for information about verifying that a disk is not in
use.
6. If the ioscan command shows different device names for the same device on any
node, then:
a. Change directory to the /dev/rdsk directory.
b. Enter the following command to list the raw disk device names and their
associated major and minor numbers:
# ls -la
The output from this command is similar to the following for each disk device:
crw-r--r-- 1 bin sys 188 0x032000 Nov 4 2003 c3t2d0
In this example, 188 is the device major number and 0x32000 is the device
minor number.
c. Enter the following command to create a new device file for the disk that you
want to use, specifying the same major and minor number as the existing
device file:
Note: Oracle recommends that you use the alternative device file
names shown in the previous table.
# mknod ora_ocr_raw_256m c 188 0x032000
d. Repeat these steps on each node, specifying the correct major and minor
numbers for the new device files on each node.
7. Enter commands similar to the following on every node to change the owner,
group, and permissions on the character raw device file for each disk device that
you want to use:
Configuring Oracle Real Application Clusters Storage 5-19