HP Hitachi Dynamic Link Manager Software - Manual (Page 339)

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.