HP XP P9500 Storage - Manual (Page 433)

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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.
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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.
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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 Solaris 9).
-When adding a new LU, you allocated an existing instance number to
the path of the added LU.
-You dynamically added an HBA (in Solaris 8 or Solaris 9).
-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.
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After HDLM device reconfiguration is performed, executing the
dlmcfgmgr utility will not dynamically delete 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.
-An upper-level program is using the LU you attempted to delete.
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In Solaris 8 or Solaris 9, if the HDLM driver configuration definition file
(/kernel/drv/dlmfdrv.conf) does not contain HDLM device
information, the dlmcfgmgr utility outputs the message and
terminates. In Solaris 10 or Solaris 11, all LUs are deleted from the
HDLM driver.
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If no change is made to the HDLM-managed devices when the
dlmcfgmgr utility is executed, the utility outputs the message and
terminates.
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You cannot concurrently execute more than one dlmcfgmgr utility on
the same host. If you attempt such execution, the utility outputs the
message and terminates.
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When any of the operations below are performed in a Solaris 10 or
Solaris 11 environment, a message in the format below is output from
the devfsadmd daemon to syslog or the console. Ignore that message.
• Add an LU dynamically
• Delete an LU dynamically
• Add a path dynamically
devfsadmd[124]: [ID 937045 daemon.error] failed to lookup
dev name for /pseudo/dlmndrv@1/dlmfdrv@w50060e800436e211,1
Utility Reference
7-19
Hitachi Dynamic Link Manager User Guide for Solaris ®