Hitachi Dynamic Link Manager Software Users Guide for Linux

Creating an md Device

This subsection explains the procedure for creating a new md device in a

multi-path environment in which HDLM has been installed.

During this procedure, /dev/md0 is created on /dev/sddlmaa1 and /dev/

sddlmab1. Use the following procedure to configure the environment shown in

Figure 3-11 Device Configuration When Creating an md Device on an HDLM

Device on page 3-161.

Figure 3-11 Device Configuration When Creating an md Device on an

HDLM Device

To create an md device:

1. Create a disk partition.

Specify the disk partition type 83 when you create a disk partition.

The following example shows how to execute the fdisk command to

create a disk partition:

# fdisk /dev/sddlmaa

Command (m for help): n

Command action

e extended

p primary partition (1-4)

Partition number (1-4): 1

First cylinder (1-1018, default 1):

Using default value 1

Last cylinder or +size or +sizeM or +sizeK (1-1018, default

1018):

Using default value 1018

Command (m for help): t

Selected partition 1

Hex code (type L to list codes): 83

Command (m for help): p

Creating an HDLM Environment

3-161

Hitachi Dynamic Link Manager (for Linux®) User Guide