HP Hitachi Dynamic Link Manager Software Licenses User Manual
Page 486
With this parameter, the message confirming that the utility is executed is
not displayed at execution of the utility even if you omit the -s
parameter. Unlike the -o, -i, or -u parameter, the utility with this
parameter specified can operate during the I/O processing to and from
the HDLM device.
If you also want to check the udev name assigned to the SCSI device that
corresponds to the HDLM device, specify the -udev parameter.
-u {logical-device-file-name-of-the-HDLM-device ...|all}
Use this parameter to delete the paths displayed as hyphens (-) in the
Device column of HDLM device configuration information that is displayed
by specifying the -v parameter.
You can specify one or more logical device file names of an HDLM device
(/dev/sddlm[aa-pap]) as a value of the -u parameter. For details on
logical device files for HDLM devices, see
. Specifying the -u parameter without the
parameter value cases an error.
If all the HDLM devices are the target, specify all. Specifying all
together with a logical device file name of an HDLM device causes an
error. If you specify the logical device file name for an HDLM device that
does not exist or a non-HDLM device, the specification is ignored.
The dlmcfgmgr utility with this parameter can be executed a number of
times while Linux is running. The re-configured HDLM device becomes
available immediately after execution of the utility.
You can use this parameter to delete information about HDLM device
paths for which a compatible SCSI device does not exist (paths displayed
as hyphens (-) in the Device column of the HDLM device configuration
information that is displayed by specifying the -v parameter), and to
release the registration of the path from HDLM.
In general, the path information for the HDLM device is added at HDLM
startup time once it is recognized. Even if the recognized HDLM device is
not available because this path is disconnected or the LU is deallocated,
the path information for the unavailable HDLM device will not be deleted
automatically. Because the unused HDLM device path information is
preserved, newly defined LUs and added paths cannot be used in some
cases. This parameter is useful to eliminate such a problem.
If you specify this parameter with all, an HDLM device, which was simply
disconnected at host boot time but is currently being used, might be
assumed to be deleted. Before executing the dlmcfgmgr utility with this
parameter set to a value of all, check the status of the HDLM device to
be deleted by executing this utility with the -v parameter.
-logfs [dlmcfgmgr-utility-log-file-size]
Use this parameter to change the size of the dlmcfgmgr utility log file
(dlmcfgmgr[1-2].log).
For dlmcfgmgr-utility-log-file-size, specify a value in the range from 1024
to 999999 (in KB).
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Utility Reference
Hitachi Dynamic Link Manager (for Linux®) User Guide