HP Hitachi Dynamic Link Manager Software Licenses - Manual (Page 483)

Parameter Functionality
-v [-udev] Displays the management status and configuration information of all the
HDLM devices recognized by HDLM.
-u Deletes the paths displayed as hyphens (-) in the Device column of the
HDLM device configuration information that is displayed by specifying the
-v parameter.
-logfs Changes the size of the dlmcfgmgr utility log file (dlmcfgmgr[1-2].log).
-s
Specify this parameter when you do not want to display the confirmation
messages during execution of the dlmcfgmgr utility. When you execute
this utility with this parameter specified, the confirmation message for
each HDLM device is not displayed.
Use this parameter when you want to skip a response to the confirmation
message (to eliminate the manual intervention). For example, use this
parameter when executing a command using a shell script or batch file.
When you specify the -v parameter, the message confirming that the
utility is executed is not displayed even if you omit the -s parameter.
-r
Specify this parameter when you register, in HDLM, a path that HDLM has
not recognized. When the dlmcfgmgr utility is executed, the logical device
file of the HDLM device is created in the /dev directory. This enables a
user to use an LDEV of the storage system as an HDLM device.
This parameter is used to create a new HDLM device definition: for
example, when changing the configuration of the storage system (for
example, add or delete an LU), or the host-side hardware configuration.
The path definition information registered in HDLM is inherited even
though the path is disconnected when the host starts.
If the SCSI device of the new path that HDLM detected is already
registered (that is, when the path between the host and an LU of the
storage system already exists and a new path is added), the same HDLM
device mapped with the path already registered is allocated. If the SCSI
device of the new path that HDLM detected is not yet registered (that is,
when you define a new path from the host to an LU of the storage
system), the HDLM device with the lowest available letter is allocated to
the path. The following table shows examples of allocating a new HDLM
device.
Table 7-6 Example: Allocation of New HDLM Devices
Status before executing the
dlmcfgmgr utility (dlmcfgmgr -r)
Status after executing the
dlmcfgmgr utility (dlmcfgmgr -r)
none
/dev/sddlmaa
#
/dev/sddlmaa /dev/sddlmaa
/dev/sddlmab
#
Utility Reference
7-23
Hitachi Dynamic Link Manager (for Linux®) User Guide