Hitachi Dynamic Link Manager on AIX manipulation command

Today's work lead me to find and learn new command for managing and verifying Hitachi Disks Array on AIX machine:

Source taken from http://www.coolcommands.com/index.php?option=com_cccat&task=display&id=47

hdlm - Hitachi SAN disk correspondance Description

Correspondance for physical disks for a Hitachi SAN:

4 hdisk = 4 dlmfdrv = 1 physical disk

HDLM commands:

Command to discover all dlmfdrv:

# dlmcfgmgr

Command to verify the disks on a HITACHI SAN:

- the system:

# dlnkmgr view -sys

- the drivers

# dlnkmgr view -drv

- the paths

# dlnkmgr view -path

Changing the Auto Failback feature

# dlnkmgr set -afb on
dlnkmgr set -afb on
Execute command? [y/n] : y
KAPL01001-I The HDLM command completed normally. Opestartration name = set

Changing the Path Health Checking feature

# dlnkmgr set -pchk on
dlnkmgr set -pchk on
Execute command? [y/n] : y
KAPL01001-I The HDLM command completed normally. Operation name = set

To bring LUN online in the system

# dlnkmgr online -path -pathid 000001