DPM upgrade to >= 1.6.0

Below, all the steps needed to upgrade the DPM from version < 1.6.0 to version >= 1.6.0.

Stop all daemons

In the following order, on the appropriate machines:

  • service dpm-gsiftp stop on all disk servers
  • service srmv2 stop on the SRM host
  • service srmv1 stop on the SRM host
  • service dpm stop on the DPM host
  • service rfiod stop on all the disk servers
  • service dpnsdaemon stop on the DPNS host

Install the new RPMs

All of them, on the appropriate node(s):

  • DPM-server
  • DPM-name-server
  • DPM-srm-server
  • DPM-rfio-server
  • DPM-gridftp-server
  • DPM-client

Database backup

IMPORTANT

As the migration script modifies the database content, we highly recommend that you take a backup of the DPM database before running the migration script. Please backup both databases cns_db and dpm_db beforehand.

Run the migration script

To support SRMv2.2, a database schema change is needed. The migration script is included in the DPM-name-server RPM.

Requirements:

  • Perl-DBD (for Mysql or Oracle)
  • Perl-DBI

NOTE Depending of the number of entries in the database, the script takes more or less time. So, be patient !

Example for a Mysql DPM

cd /opt/lcg/share/DPM/dpm-support-srmv2.2/

./dpm_support_srmv2.2 --db-vendor MySQL --db localhost --user dpm --pwd-file /tmp/pwd --dpns-db cns_db --dpm-db dpm_db --verbose

Example for an Oracle DPM

cd /opt/lcg/share/DPM/dpm-support-srmv2.2/

./dpm_support_srmv2.2 --db-vendor MySQL --db localhost --user dpm --pwd-file /tmp/pwd --dpns-db cns_db --dpm-db dpm_db --verbose

SRMv2.2 daemon

A new daemon - supporting SRMv2.2 - has to run.

Same step as for the other daemons: cp /etc/sysconfig/srmv2.2.templ /etc/sysconfig/srmv2.2

Then, edit /etc/sysconfig/srmv2.2, and replace and according to your setup :

# - DPM host : please change !!!!!!
export DPM_HOST=<DPM_hostname>

# - DPM Name Server host : please change !!!!!!
export DPNS_HOST=<DPNS_hostname>

Chkconfig it on:

/sbin/chkconfig srmv2.2 on

Restart the daemons

  • service dpnsdaemon start on the DPNS host
  • service rfiod start on all the disk servers
  • service dpm start on the DPM host
  • service srmv1 start on the SRM host
  • service srmv2 start on the SRM host
  • service srmv2.2 start on the SRM host don't forget this new one
  • service dpm-gsiftp start on all disk servers

-- SophieLemaitre - 15 Feb 2007

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Topic revision: r2 - 2007-02-15 - SophieLemaitre
 
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