3.7.0 HP StorageWorks HP Scalable NAS File Serving Software upgrade guide HP Scalable NAS for Linux (AG513-96005, October 2009)

NOTE:
If you do not specify a PSFS filesystem, mximport uses the default location, which
is the local /var/opt/polyserve/run (or /var/opt/hpcfs/run)
directory on the server.
Although the mximport tool copies much of the cluster configuration, it does not
copy the MxReg data. It simply creates a structure for this data that will be used
by the remaining servers as they are upgraded.
Migration actions on the second and subsequent servers
The migration package includes a tool called mxfs_upgrade_prep.sh that must
be run during the upgrade of the remaining servers. This tool creates a file called
mxreg_export.xml that contains the MxReg data from the server. The file is placed
in the location indicated during the execution of mximport on the first server (either
a PSFS filesystem or the default local directory).
NOTE:
If the local directory is used, after running the mxfs_upgrade_prep.sh script
on the last server to be upgraded, you will need to copy the mxreg_export.xml
file from /var/opt/polyserve/run or (/var/opt/hpcfs/run) on that server
to the first server to be upgraded. It is important to do this because the first server
does not have a copy of the file.
Creation of the new mxds datastore
When the upgrade has been completed on all servers and the cluster is running, HP
Scalable NAS will create the mxds datastore and import the NFS state information
saved in the mxreg_export.xml file to the new datastore. NFS serving will start
automatically when the process is complete.
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