Migrating Reservation Control Settings; Support For A Boot Disk Environment; About Settings When Upgrading The Os; Eliminating Settings When Upgrading The Os - Hitachi XP P9500 User Manual

Migrating Reservation Control Settings

In HDLM version 5.8.1 or earlier, the reservation control setting is called the
reservation level and is specified by using the set operation with the -rsv on
parameter. The target of the reservation level was every LU in an HDLM
management-target device. However, you can set the reservation policy
specification on each LU if the AIX version is AIX 5L V5.2 or later. The
reservation control setting is specified by using the chdev command in HDLM
version 5.9 or later. Therefore, the -rsv on parameter for the set operation
is no longer provided.
Table B-2 The correspondence of the setting values between the reservation
level and reservation policy on page B-5
setting values between the reservation level and the reservation policy.
Table B-2 The correspondence of the setting values between the
0: Ignoring the reservation
2: Persistent reservation

Support for a Boot Disk Environment

A storage system disk can now be used for the boot disk. Accompanying this,
the dlmpreuninst utility that is executed before uninstalling HDLM has been
provided. The dlmpreuninst utility excludes, before you uninstall HDLM, the
hdisk recognized as a boot disk from being an HDLM management-target
device.

About Settings when Upgrading the OS

Eliminating Settings when Upgrading the OS

There is no required procedure in HDLM when the OS is upgraded.

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 the changes explained in
OS on page B-5
page B-5, the dlmchenv utility for modifying the HDLM execution environment
is no longer necessary and has been deleted.
Differences Between HDLM Version 5.9 or Later and Version 5.8.1 or Earlier
reservation level and reservation policy
Reservation Level
and Eliminating Settings when Changing the Kernel Mode on
Hitachi Dynamic Link Manager User Guide (for AIX(R))
shows the correspondence of the
Reservation Policy
no_reserve
PR_exclusive
Eliminating Settings when Upgrading the
B-5