HP Hitachi Dynamic Link Manager Software - Manual (Page 475)

7. Utility Reference
453
• You must restart the host after performing an upgrade installation or
re-installation. LUs will not be added or deleted dynamically if you execute
the
dlmcfgmgr
utility before restarting the host.
• If the HDLM driver configuration definition file (
/kernel/drv/
dlmfdrv.conf
) contains the definition of a newly added LU, the
dlmcfgmgr
utility makes the HDLM driver recognize the new LU so that
the LU is to be managed by HDLM. If the definition of an existing LU no
longer exists in the HDLM driver configuration file (
dlmfdrv.conf
file),
the
dlmcfgmgr
utility deletes the existing LU from the HDLM driver and
excludes it from HDLM management.
• The HDLM driver is not dynamically reconfigured for deleted LUs (in
Solaris 8 or Solaris 9), LUs for which a path has been added or deleted, and
LUs for which a path setting such as the instance number has been changed.
If you have deleted an LU (in Solaris 8 or Solaris 9), or added, deleted, or
changed a path, update the configuration by specifying the reconfiguration
option, and then restarting the host.
• To remove the LU managed by HDLM from HDLM management, you need
to restart the host specifying the reconfiguration option. Do not use the
dlmcfgmgr
utility.
• If you want to specify that some of the newly added LUs are not to be
managed by HDLM, you need to remove these LUs from HDLM
management before executing the
dlmcfgmgr
utility. If the newly added
LUs have been removed from HDLM management, reconfiguration of these
LUs is not performed for the HDLM driver.
• After HDLM device reconfiguration is performed, executing the
dlmcfgmgr
utility will not dynamically add LUs if one of the following
occurs:
-For the LU, you changed the LUN mapping, the mapping-destination
storage port, or the HBA port on the recognizing host.
-You mapped another logical device to a LUN of the storage port being used
by the configured LU (in Solaris 8 or 9).
-When adding a new LU, you allocated an existing instance number to the
path of the added LU.
-You dynamically added an HBA.
-The major or minor number of the sd or ssd device for an LU to be newly
added matches the major or minor number of an sd or ssd device previously
registered in HDLM.
• After HDLM device reconfiguration is performed, executing the
dlmcfgmgr
utility will not dynamically delete LUs if one of the following