HP Hitachi Dynamic Link Manager Software - Manual (Page 491)

a
.
Delete the SCSI device you just added.
b
.
Dynamically add the SCSI device once again.
c
.
Execute the online operation to place the device path online.
d
.
Execute the dlmcfgmgr utility with the -r parameter specified.
• If you execute the dlmcfgmgr utility with the -r parameter specified while
all paths connecting to the HDLM device are disconnected, the HDLM
partition information will be lost from /proc/partitions. To restore the
HDLM partition information, follow these steps:
a
.
Connect the path and place the device online.
b
.
Execute blockdev --rereadpt HDLM-device to update the partition
information.
dlmchname HDLM Device Name Replacement Utility
This utility changes an HDLM device name. This utility can also assign the
same HDLM device name to disks that are used by multiple hosts for the
same purpose and assign the same HDLM device name to a disk shared in a
cluster.
For details on how to change an HDLM device name, see Changing an HDLM
device name on page 4-49 .
Format
/opt/DynamicLinkManager/bin/dlmchname [-f | -o]
Parameters
-f
Specify this parameter to change the name of an HDLM device that is
being used.
You must restart the host after the command is completed.
-o
Specify this parameter to output the correspondence between the current
iLUs and HDLM device names to the device name replacement definition
file (/etc/opt/DynamicLinkManager/dlmchname.conf).
The device name definition file is backed up for three generations
(including the current device name definition file).
Important
• If you execute the dlmchname utility without specifying any parameters,
initial values (0) are set for all statistics (number of I/Os and number of I/
O errors) managed by HDLM.
• If the -f parameter is not specified, the name of an HDLM device that is
being used cannot be changed.
Utility Reference
7-31
Hitachi Dynamic Link Manager User Guide for Linux ®