Hitachi Dynamic Link Manager Software Users Guide for AIX (6.6) (T5208-96010, April 2011)

B. Differences Between HDLM Version 5.9 or Later and Version 5.8.1 or Earlier
474
The dlmpreuninst utility excludes, before you uninstall HDLM, the hdisk
recognized as a boot disk from being an HDLM management-target device.
B.6 About Settings when Upgrading the OS
(1) Eliminating Settings when Upgrading the OS
There is no required procedure in HDLM for when the OS is upgraded, so the
explanation in (1) Settings for an OS Upgrade in 4.6.2 Settings for an OS Upgrade in
the manual HiCommand Dynamic Link Manager User's Guide (for AIX(R))
(3000-3-926-50(E)) is no longer necessary and has been deleted from this manual.
(2) Eliminating Settings when Changing the Kernel Mode
In HDLM version 5.9 or later, both 32-bit and 64-bit versions are installed. When the
32-bit kernel is in use, the 32-bit version of HDLM is used automatically, and when
the 64-bit kernel is in use, the 64-bit HDLM is used automatically. Because of this
change, the following sections have been deleted from the manual HiCommand
Dynamic Link Manager User's Guide (for AIX(R)) (3000-3-926-50(E)):
• 3.4.1 Preparations for a New Installation of HDLM
(4) Switch the kernel mode
• 4.6.2 Settings for an OS Upgrade
(2) Settings when the kernel mode is changed
Because of the changes explained in (1) Eliminating Settings when Upgrading the OS
and (2) Eliminating Settings when Changing the Kernel Mode, the
dlmchenv utility
for modifying the HDLM execution environment is no longer necessary and has been
deleted.
B.7 Changing a Virtual I/O Server's Method of Recognizing Virtual
SCSI Disks
In HDLM version 5.8.1 or earlier, either PVID or unique_id can be selected as the
method used by a virtual I/O server for recognizing virtual SCSI disks. In HDLM
version 5.9 or later, only
unique_id can be used because of the MPIO specification.
Because of this change, the explanation in 4.1.11 Switching the recognition method for
virtual SCSI disks when the virtual I/O server is used in the manual HiCommand
Dynamic Link Manager User's Guide (for AIX(R)) (3000-3-926-50(E)) has been
deleted because it is no longer necessary. Also, the
-u and the -e parameters of the
dlmodmset utility for setting the HDLM execution environment ODM are no longer
provided because they are also not necessary.