HP XP Racks - Manual (Page 77)

Notes on Trace Files
In HDLM 5.6 or later, trace files for versions of HDLM earlier than 5.6 are
divided into integrated trace files and trace files. The logs for the HDLM
command are output to integrated trace files. Trace information for an HDLM
manager is output to trace files. The output destinations for the files are
changed as follows:
When you migrate from HDLM 04-00 or earlier
Trace files before the migration: /opt/hitachi/HNTRLib/spool/
hntrn.log (n indicates a file number)
Integrated trace files after the migration: /var/opt/hitachi/HNTRLib2/
spool/hntr2n.log (n indicates a file number)
Trace files after the migration: /var/DynamicLinkManager/log/
hdlmtrn.log (n indicates a file number)
When you migrate from HDLM 05-00 or later
Trace files before the migration: /var/opt/hitachi/HNTRLib2/spool/
hntr2n.log (n indicates a file number)
Integrated trace files after the migration: /var/opt/hitachi/HNTRLib2/
spool/hntr2n.log (n indicates a file number)
Trace files after the migration: /var/DynamicLinkManager/log/
hdlmtrn.log (n indicates a file number)
Notes on Storage Systems
• Do not change the vendor ID or product ID of a storage system. If you
do, HDLM will not be able to recognize the storage system.
• Before you connect multiple storage systems to the same host, make sure
that the storage systems have unique serial numbers. If there is a
duplication of serial numbers, use a tool such as Disk Array Management
Program to assign a unique serial number to each device.
• If you restart a storage system when using an hdisk that meets both of
the following conditions, the persistent reservation of the LU registered in
this volume group will be cancelled:
¢
The reserve_policy attribute has been set to PR_exclusive.
¢
The volume group has been activated.
Perform the procedure below to inactivate the volume group, and then re-
activate it. Also, when you perform a planned restart of a storage system,
make sure you perform the operation while the volume group is inactive.
a
.
Execute the following command to inactivate the volume group:
# varyoffvg volume-group-name
b
.
Execute the following command to make sure that the inactivated
volume group is no longer displayed:
# lsvg -o
c
.
Execute the following command to activate the volume group:
# varyonvg volume-group-name
Creating an HDLM Environment
3-15
Hitachi Dynamic Link Manager User Guide for AIX®