Hitachi Dynamic Link Manager Software Users Guide for AIX (6.6) (T5208-96010, April 2011)

3. Creating an HDLM Environment
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3.5.6 Migrating from HDLM Version 5.8.1 or Earlier to Version 5.9 or
Later
When HDLM version 5.8.1 or earlier is migrated to HDLM version 5.9 or later, the
logical device file that can be controlled by the HDLM driver changes from the HDLM
device (
dlmfdrvn) to hdisk. If the user application uses an LU managed by HDLM,
modify the user application appropriately.
To migrate to HDLM version 5.9 or later:
1. Log in to AIX as a user with root permissions.
• If you are using a virtual I/O server, see the virtual I/O server documentation
for details about how to log in to AIX.
• If you are not using a virtual I/O server, proceed to step 10.
2. Check the virtual SCSI disk recognition method being used.
Execute the
dlmodmset utility for setting the HDLM execution environment
ODM in order to check the
unique_id value:
The following shows an example of executing this utility when HDLM 5.6.3 has
been installed:
# dlmodmset -o
Inquiry Log : on
Inquiry Log File Size : 1000
hdisk error check flag : on
HDLM pbuf count : 16384
Lun Reset : off
/var/DynamicLinkManager/log/hdlmtr[1-64].log Trace files
/var/DynamicLinkManager/log/dlmconfig[1-2].log Configuration log file
/var/DynamicLinkManager/log/mmap/hdlmtr.mm Trace management file
/var/DynamicLinkManager/log/dlmwebagent[1-16].log Hitachi Command Suite
Common Agent
Component log files
/var/DynamicLinkManager/log/dlmutil[1-2].log HDLM utility's log file
/var/DynamicLinkManager/log/mmap/dlmutil.mm HDLM utility's log trace
management file
/var/DynamicLinkManager/log/installhdlm.log Unattended installation
execution log
File Description