Deleting An Lu Dynamically; Requirements To Delete The Lu Dynamically; Checking That The Lu Or Path Has Been Dynamically Deleted - Hitachi XP P9500 User Manual

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
the Options window, see the HDLM GUI Help.

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.

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:
When an LU is deleted from the HDLM management target by using the
LU deletion function, the KAPL08022-E message might not be output to
the event log. In this case, refer to the KAPL05301-E message to check
the path information.
Figure 4-3 An example of displaying the KAPL05301-E message on page
4-20 shows an example of displaying the KAPL05301-E message.
Setting Up the HDLM Functions on page
HDLM Operation
Hitachi Dynamic Link Manager User Guide (for Windows(R))
3-70. For details on
4-19