View source for CentOS 7.x iSCSI target server setup

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To setup iSCSI target server on CentOS 7 use:

# Install required packages:
#:<pre>
#:: yum -y install targetcli python-configshell python-rtslib python-six python-dbus
#:</pre>
#:: ''One can consider doing 'yum -y update' of whole system as targetcli has many hidden dependencies''
# Clear configuration using '<tt>targetcli clearconfig confirm=true </tt>'
# Run '<tt>targetcli</tt>' and configure it using:
#:<pre>
#::      #Create file to be used as iscsi backstore
#::      cd /backstores
#::      fileio/ create test /opt/test.iscsi 100m
#::      ls
#::      #Note that we can also use block devices using /backstores/block
#::      #/opt/test.iscsi can also be created using
#::      #cd /opt
#::      #qemu-img create -f raw test.iscsi 100M
#::
#::      cd /iscsi
#::      #This will create IQN number automatically
#::      #Ideally we should create different iqn numbers for every backstore
#::      #So that there is flexibility on client side.  We can run
#::      #create multiple times to create different iqn numbers.
#::      create
#::      cd iqn.<press-tab-to-autocomplete>
#::     
#::
#::      #Create lun 
#::      cd tpg1/luns
#::      create /backstores/fileio/test
#::
#::      #Allow client IQN numbers without authentication
#::      cd ../acls
#::      create <client1-iscsi-initiator-name>
#::      create <client2-iscsi-initiator-name>
#::
#::      #Save and exit
#::      cd /
#::      saveconfig
#::      exit
#:</pre>
#::  Client initiator name is located in file '<tt>/etc/iscsi/initiatorname.iscsi</tt>'.  Take only value after 'InitiatorName=' starting with 'iqn.'
# Configure service to start on system boot and also start it for current run:
#:<pre>
#:: systemctl enable target
#:: systemctl start target
#:</pre>
#Disable firewall or given exception for port 3260
#:<pre>
#:: systemctl disable firewalld
#:: systemctl stop firewalld
#:</pre>




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