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Created page with " === Installing dCache 1.9.5 from scratch === ==== Virtual machine ==== *Installed a base machine **It is a virtual machine on dom04.wn.iihe.ac.be with 2 CPUs and 2GB of ..."

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=== Installing dCache 1.9.5 from scratch ===

==== Virtual machine ====
*Installed a base machine
**It is a virtual machine on dom04.wn.iihe.ac.be with 2 CPUs and 2GB of RAM
<pre>
dcache2-shadow.iihe.ac.be
</pre>

==== Installation and setup ====
*The dCache 1.9.5 manual http://www.dcache.org/manuals/Book-1.9.5/
**The steps below follow basically what is described in the manual

*Remark: [[InstalldCacheHeadnode]] gives the instructions to reinstall the 1.8.0 dCache version on maite

*Get latest release:
<pre>
wget http://www.dcache.org/downloads/1.9/dcache-server-1.9.5-29.noarch.rpm
rpm -ivh dcache-server-1.9.5-29.noarch.rpm
</pre>

*Install PostgreSQL
<pre>
yum install -y postgresql postgresql-devel postgresql-jdbc postgresql-libs postgresql-python postgresql-server postgresql-contrib
/etc/init.d/postgresql start
chkconfig postgresql on
</pre>

*In /var/lib/pgsql/data/pg_hba.conf add
<pre>
local all all trust
host all all 127.0.0.1/32 trust
host all all ::1/128 trust
</pre>
*and restart
<pre>
/etc/init.d/postgresql restart
</pre>

*Create db and user
<pre>
createuser -U postgres --no-superuser --no-createrole --createdb --pwprompt srmdcache
createdb -U srmdcache dcache
</pre>
*Generate keys
<pre>
ssh-keygen -b 768 -t rsa1 -f /opt/d-cache//etc/server_key -N ""
ssh-keygen -b 1024 -t rsa1 -f /opt/d-cache//etc/host_key -N ""
</pre>

*Install pnfs
<pre>
wget http://www.dcache.org/downloads/pnfs/RPMs/pnfs-postgresql-3.1.18-1-SL5x.x86_64.rpm
rpm -ivh pnfs-postgresql-3.1.18-1-SL5x.x86_64.rpm
</pre>

*A whole set of config files need to be adapter [[InstallDcache195scratchConfigFiles]]

*Import pnfs database:
**go to jefke.wn and in /storage/userbackup/Maite_Db_backup/ find a file with pnfsdb.tar (any will do).
**Untar it in the correct location. ''Hint:'' tar -tf to see where the tree structure of the tarball.
**This configures contains the metadata for the pnfs database
**Also copy the last file full_*.gz, which contains the full pnfs database.
<pre>
su - postgres
zcat <path to gzipped full database> | psql postgres
</pre>

*Run install script of dcache.
**Needed a little hack in the script to mount fs from localhost
<pre>
/opt/d-cache/install/install.sh
</pre>
**with line 260 replace ''RET=${RET:-localhost}'' by ''RET="localhost"''

*The poolmanager.conf was adapted by Olivier and is here [[InstallDcache_PoolManagerConf]]

*Copy all files from maite ~/.ssh to new machine
**make sure permissions are 700
**import keys in dcache
<pre>
cat ~/.ssh/dcache_admin_key.pub >> /opt/d-cache/config/authorized_keys
</pre>

*Change the following files
**/pnfs/fs/admin/etc/config/serverName
**/pnfs/fs/admin/etc/config/dCache/dcache.conf
**vi "/pnfs/iihe/cms/store/user/odevroed/.(config)(dCache)/dcache.conf"
**more info in the dcache book in the section ''Global Configuration with Wormholes''
*Run this
<pre>
touch /pnfs/fs/admin/etc/config/dCache/'.(fset)(dcache.conf)(io)(on)'
</pre>

*Copy files from /etc/grid-security (not the keys)

*Install lcg-CA repo
**Link: https://twiki.cern.ch/twiki/bin/view/LCG/GenericInstallGuide310
**Link: https://wiki.egi.eu/wiki/EGI_IGTF_Release
<pre>
wget http://repository.egi.eu/sw/production/cas/1/current/repo-files/EGI-trustanchors.repo
mv EGI-trustanchors.repo /etc/yum.repos.d/
yum install ca-policy-egi-core
yum install lcg-CA
</pre>

*This machine was installed as a base machine. Therefore the user and groups were not present. They have been created (only the relevant ones) by hand to be able to test the machine.

*The way dCache is handling the authorisation changed; in case /Role= and /Capability= are null they are ommited. This means that the entries in /etc/grid-security/grid-vorolemap should not be
<pre>
"/C=BE/O=BEGRID/OU=ELEM/OU=VUB/CN=Joris Maes" "/cms/becms/Role=NULL/Capability=NULL" jmmaes
</pre>
but it should be
<pre>
"/C=BE/O=BEGRID/OU=ELEM/OU=VUB/CN=Joris Maes" "/cms/becms" jmmaes
</pre>

==== Operation ====

*Fire up the server
<pre>
/opt/d-cache/bin/dcache start|restart|stop|status
</pre>

*Go into admin mode
<pre>
ssh -F /root/.ssh/dcache_admin_config admin@localhost
</pre>

==== GUI ====

*Installation

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InstallDcache195scratch - Revision history

Maintenance script: Created page with " === Installing dCache 1.9.5 from scratch === ==== Virtual machine ==== *Installed a base machine **It is a virtual machine on dom04.wn.iihe.ac.be with 2 CPUs and 2GB of ..."