HP Hitachi Dynamic Link Manager Software User Manual

Page 108

3. Creating an HDLM Environment

In Oracle RAC 11g, for the following devices, device name should be matching

between the nodes:

• voting disk
• Oracle Cluster Registry
• Oracle database file
• system table area
• users table area
• ASM disk to be used for ASM disk group creation

In an environment where an HDLM raw device is used as the devices listed

above, if the HDLM raw device name does not match between the nodes, create

an alias device file of the HDLM raw device in each node by using the following

procedure and set the created alias device file in Oracle RAC 11g.
1.

Check the major number and minor number of HDLM raw devices used by

Oracle RAC 11g by executing the following command in each node:

# ls -lL

HDLM-raw-device-file

Execution example:

# ls -lL /dev/rdsk/c10t50060E8005271760d5s0

crw-r----- 1 root sys 307, 1608

date/time

/dev/

rdsk/c10t50060E8005271760d5s0

In this example, the major number is

307

and the minor number is

1608

Create an alias device file by executing the following command in each

node. An alias device file corresponding to one disk slice should have the

same name in all the nodes.

# mknod /dev/

alias-device-file

major-number

minor-number

Note:
The name of the alias device file should not be duplicated with a device file

name created under the

/dev

directory by Solaris or other drivers.

Execution example:

# mknod /dev/crs_ocr1 c 307 1608