HiCommand Dynamic Link Manager (HDLM) for Windows Systems User's Guide (HIT5201-96001, January 2008)

HiCommand
®
Dynamic Link Manager (HDLM) for Windows
®
Systems User’s Guide 73
3.5.2.5 Setting the Reservation Level
You cannot set the reservation level (reservation control method for the LU).
3.5.2.6 Setting the LU Deletion Functionality
You can select whether to enable the LU dynamic removal function.
For details on the LU deletion functionality, see section
4.6.2.
Table 3.11 shows the values for the LU deletion functionality.
Table 3.11 LU Deletion Function Values
Values in Options Window
Values in Set
Operation
Description
OFF off The LU is not removed from HDLM-management even if the
error occurs in all the paths to the LU, all the paths to the LU
are disconnected, or the LU is deleted. The status of the paths
is Offline(E) and Online(E). This operation is as equal as the
operation in HDLM 5.1 or earlier. The off option is
recommended when you want to use the same functionality as
you use in HDLM 5.1 or earlier, without using the LU deletion
functionality.
The Remove the LU
even if there are
Offline(C) paths
option is set to OFF.
on The LU is removed from HDLM-management when all the
paths to the LU are disconnected. However, if an Offline(C)
path is included in the disconnected paths, the LU is not
deleted from HDLM-management.
The deleted LU is restored when it is recovered from the
physical failure and the disk is re-scanned.
ON
The Remove the LU
even if there are
Offline(C) paths
option is set to ON.
on -force The LU is removed from HDLM management when all the
paths to the LU are disconnected, even when an Offline(C) path
is included.
The removed LU is restored when it is recovered from the
physical failure and the disk is re-scanned.
 Setting the LU Deletion Functionality using Options window
When using the Remove LU functionality, set it to ON. When not using the Remove LU
functionality, set it to OFF. If you select ON, you can specify the conditions for LU
dynamic removal in Remove the LU even if there are Offline(C) paths.
 Setting the LU Deletion Functionality Using the set Operation
The following is an example of setting the LU deletion functionality using the set
operation:
>dlnkmgr set -rmlu on -force
To enable the LU deletion functionality, specify on. To disable the LU deletion
functionality, specify off. If you specify on, you can set the conditions for by using the
-force parameter for LU dynamic removal.