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HP Hitachi Dynamic Link Manager Software User Manual

Page 339

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4. HDLM Operation

317

in step 1.

31. If you released file system settings in steps 2 to 4, check the HDLM devices after

reconfiguration, and then set up the file system again.

(2) Deleting an LU via Dynamic Reconfiguration

Note

You can delete an LU via dynamic reconfiguration only in Solaris 10.
You cannot delete an LU via dynamic reconfiguration if that LU is being

used by an upper-level application.

You cannot delete only some of the paths to an LU; all paths must be deleted

at one time.

To delete an LU managed by HDLM:
1.

Stop any programs that are using the LU that you want to delete.

2.

Set up the storage system and switch to cut the connection between the host and

LU.
Perform the following operations to cut the connection to an existing LU:

Set up the storage system (release the mapping between the internal LU and

the storage port LUN)

Cut the connection between the storage port and the host HBA port
Release the Fibre Channel switch settings
Release the settings for the host HBA, and for the sd or ssd driver

For details on how to perform these settings, refer to the documentation for the

HBA being used. You may need to restart the host, depending on the HBA being

used, its drivers, and the path configuration of the deleted LU.

3.

Execute the

dlmsetconf

utility for creating the HDLM driver configuration

definition file to update the HDLM driver configuration definition file (

/

kernel/drv/dlmfdrv.conf

).


# /opt/DynamicLinkManager/bin/dlmsetconf

If an error message or warning message is displayed for the deleted LU path,

ignore it. In addition, refer to the file

/opt/DynamicLinkManager/config/

dlmfdrv.unconf

to make sure that the file does not contain this LU and also

contains an LU other than this one.

4.

Execute the

dlmcfgmgr

utility for managing the HDLM configuration to delete

the LU, which is disconnected from the host, from the HDLM driver.