=====iSCSI in RHEL 3 and RHEL4=====
Process is pretty straight forward.

  # up2date iscsi-initiator-utils  #installs the iscsi initiatior utils
  
You then need to create an **/etc/initiatorname.iscsi** file to create it you need to use **/sbin/iscsi-iname **

  # /sbin/iscsi-iname
  
This creates a new IQN for the iscsi initiator. This can be modified if needed.

You then need to edit **/etc/iscsi.conf** file. Here is where you would setup the IP address of the target. Here are the most relevant options

<file>

 Continuous=no
 HeaderDigest=never
 DataDigest=never
 ConnFailTimeout=180
 ImmediateData=yes
 DiscoveryAddress=<IP address of target>

# if passwords are needed then you will need the following entries also

 OutgoingUsername=<username>
 OutgoingPassword=<password>
 IncomingUsername=<anotherusername>
 IncomingPassword=<anotherpassword>
 </file>

Now you will need to start the service and ensure it will auto start.
<file>
  /etc/init.d/iscsi start
  chkconfig iscsi on
  </file>
  
You will then be able to create luns and present then to the server. Once the luns are presented you might have to restart the isci service
<file>
service iscsi restart
</file>

and now you can create new new partitions and use them as normal

One thing to be aware is that the **iscsi** service starts after the partitions in **/etc/fstab** are mounted so adding them there can cause the system to hang.

to prevent this you need to add the **_netdev** option

<file>
#device         mount point     FS      Options Backup  fsck
LABEL=data1     /mnt/data1      ext3    _netdev 0       0
/dev/sdf1       /mnt/data2      ext3    _netdev 0       0
</file>