Format, Parameters, Format -10 – HP XP7 Storage User Manual
Page 280: Parameters -10, Utility, see, The dlmpr utility for clearing hdlm

For Windows Server 2003 (excluding the x86 edition), Windows Server
2008 (excluding the x86 edition), or Windows Server 2012, Program
Files is Program Files (x86).
#8
File names are created by using the value in the Hitachi Network
Objectplaza Trace Library utility's Output (directory and prefix),
adding 2 onto the end, and then adding a file number onto the end of
that. The default file names range from hntr21.log to hntr216.log.
Note that 2 is part of the integrated trace file name and does not
represent part of the file number.
#9
You can obtain dlm_iscsims.txt only when the iSCSI software is
installed.
#10
You can obtain these files only in Windows Server 2003.
#11
You can obtain all files under hbsainfo only when a Hitachi Command
Suite product other than HDLM from which error information is to be
collected is being used.
The dlmpr Utility for Clearing HDLM Persistent Reservations
The dlmpr utility clears the persistent reservation that is left in an LU after
HDLM is removed. However, a persistent reservation is not left in an LU when
you remove HDLM as instructed by the procedure in this manual. This utility
is located in the following location:
drive-where-the-installation-DVD-has-been-inserted:\HDLM_Windows
\DLMTools
Note:
This utility can be executed when the following conditions are satisfied:
¢
HDLM has been removed.
¢
Services and drivers in a cluster system have not started yet.
Format
dlmpr {-c| -d| -h}
Parameters
-c
Displays a list of the paths for LUs managed by HDLM and persistent
reservation information. When you specify the path ID, the persistent
reservation for the path is cleared.
7-10
Utility Reference
Hitachi Dynamic Link Manager (for Windows®) User Guide