Add-In Hdlm Driver Module; Simplifying The Hdlm Environment Configuration And Operation Procedures By Changes To The Logical Device Files - Hitachi XP P9500 User Manual

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.
HDLM version 5.8.1 or earlier and HDLM version 5.9 or later on page B-2
shows the differences in the HDLM drivers between HDLM version 5.8.1 or
earlier and HDLM version 5.9 or later.
Figure B-1 Differences in the HDLM drivers between HDLM version 5.8.1 or
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
on page 2-3
HDLM-managed targets.
• Eliminating the rc.shutdown file
B-2
Differences Between HDLM Version 5.9 or Later and Version 5.8.1 or Earlier
Figure B-1 Differences in the HDLM drivers between
earlier and HDLM version 5.9 or later
will be managed. You cannot exclude physical volumes from
Hitachi Dynamic Link Manager User Guide (for AIX(R))
Devices Managed by HDLM