Environment -17, When the path configuration is changed -17, Precautions regarding – HP XP P9500 Storage User Manual
Page 279: When the path, To determine this path, perform the procedure in
•
Changing the LU default controller for a storage system
•
Adding, deleting, or changing a CHA port
•
Changing the topology of a storage system
•
Changing the Fibre Channel switches settings (including connection ports
and zoning)
•
Changing a target ID
•
Changing the instance number of the HBA driver by changing the
contents of the /etc/path_to_inst file
•
Switching the kernel mode
•
Inheriting logical device names during storage system migration
Precautions Regarding Changes to the Configuration of an HDLM
Operating Environment
Keep the following in mind when changing the configuration of an HDLM
operating environment.
Changing the Configuration of a System that Uses HDLM
After changing the configuration of a system that uses HDLM, perform these
steps:
1
.
Delete all unnecessary logical device files in the /dev/dsk and /dev/rdsk
directories.
2
.
Back up the HDLM driver configuration definition file (/kernel/drv/
dlmfdrv.conf).
3
.
Execute the dlmsetconf utility for creating the HDLM driver configuration
definition file.
Edit the HDLM driver unconfiguration definition file (/opt/
DynamicLinkManager/config/dlmfdrv.unconf) as required, and then
execute the dlmsetconf utility.
For details on how to edit the HDLM driver unconfiguration definition file
(/opt/DynamicLinkManager/config/dlmfdrv.unconf), see
HDLM Device Unconfiguration Function When Performing a New
Installation of HDLM on page 3-72
4
.
Depending on the changes you have made to the HDLM system
configuration, restart the host with the reconfiguration option specified, or
execute the dlmcfgmgr utility for managing the HDLM configuration.
When the Path Configuration Is Changed
When the path configuration of an LU is changed and any of the following
operations occur, logical device files of HDLM devices might be re-created
with a different name:
•
The -r parameter was specified when executing the dlmsetconf utility for
creating the HDLM driver configuration definition file.
HDLM Operation
4-17
Hitachi Dynamic Link Manager User Guide for Solaris
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