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2 deleting an lu dynamically – HP Hitachi Dynamic Link Manager Software User Manual

Page 215

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4. HDLM Operation

191

- KAPL08019-E and KAPL08022-E
- KAPL05301-E
Note that these messages are output by Windows activities, and not by an

error in HDLM.

4.7.2 Deleting an LU Dynamically

The LU deletion function automatically removes an LU from HDLM management

when all the paths to that particular LU are disconnected.
You can set up the LU deletion function by specifying the

dlnkmgr

command's

set

operation together with the

-rmlu on

parameter. You can also set up this function in

the Options window of the HDLM GUI. For details on the

set

operation, see

3.7.2 Setting Up the HDLM Functions. For details on the Options window, see the

HDLM GUI Help.

(1) Requirements to Delete the LU Dynamically

An LU is deleted when all the paths to that LU are disconnected. This means that an

LU is deleted when HLU is deleted.
When using the

dlnkmgr

command's

set

operation to dynamically delete an LU,

depending on the settings the following differences exist:

„

When the

-rmlu

on

parameter is specified, the LU is not removed from HDLM

management if the disconnected paths include a path in the

Offline(C)

status.

„

When the

-rmlu

on

-force

parameter is specified, the LU will be removed from

HDLM management, even if the disconnected paths include a path in the

Offline(C)

status.

(2) Checking that the LU or Path Has Been Dynamically Deleted

This section explains the two operations that can be used to confirm that the LU or path

has been deleted by using the LU deletion function. One operation is performed when

the user intentionally deletes an LU or path, and the other operation is automatically

performed when an LU or path is deleted because all the paths are disconnected.

When the user deletes the LU or path intentionally:

Use the disk administrator, HDLM command, or HDLM GUI to confirm that LU or

path has been deleted.

When an LU or path is automatically deleted due to all the paths being

disconnected:

If an LU is deleted because all the paths are disconencted, HDLM outputs the

KAPL05301-E message to the event log.
Note: