HP XP Racks - Manual (Page 434)

Add-in HDLM Driver Module
HDLM version 5.9 or later supports MPIO used by AIX 5L V5.2 or later. This
has improved compatibility with the OS because users can use standard OS
commands to manage paths on HDLM management-target devices. As
compared to HDLM version 5.8.1 or earlier, HDLM version 5.9 or later differs
in terms of the HDLM driver structure, environment configuration, and HDLM
operation procedures. The following figure shows the differences between the
HDLM driver for HDLM EX and the HDLM drivers for HDLM version 05-63 or
earlier and HDLM version 05-80 or later.
Figure B-1 Differences in the HDLM drivers between HDLM version 5.8.1 or
earlier and HDLM version 5.9 or later
Simplifying the HDLM Environment Configuration and
Operation Procedures by Changes to the Logical Device Files
• The logical device files that can be controlled by the HDLM driver have
been unified from HDLM devices (dlmfdrvn) to the hdisk provided by the
OS. Therefore, logical device files controlled by HDLM can be configured
by AIX's standard cfgmgr command.
Both the file that defines non-HDLM-managed disks (/usr/
DynamicLinkManager/drv/dlmfdrv.unconf) and the file that defines the
HDLM driver configuration (/usr/DynamicLinkManager/drv/
dlmfdrv.conf) are no longer used. After installing HDLM, all devices
shown in Devices that HDLM can manage in Devices Managed by HDLM
on page 2-3 will be managed. You cannot exclude physical volumes from
HDLM-managed targets.
B-2
Differences Between HDLM Version 5.9 or Later and Version 5.8.1 or Earlier
Hitachi Dynamic Link Manager User Guide for AIX®