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5 setting the reservation level, 6 setting the lu deletion functionality – HP Hitachi Dynamic Link Manager Software User Manual

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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.