Oracle RAC on ISCSI ... the small details ... round two

Now im starting over with installing oracle 11g RAC on iSCSI, the first round (actually that was probably the 5th round, but first round i write about) failed due lack of A)storage on iscsi target B)too little memory on one of the nodes.

So now i have a new iSCSI target setup on debian etch from backports, and im setting up a new powerful node to serve as a node in the Oracle RAC.

So i installed Enterprise Linux fine and i am following the same steps described in the "round one" post.

While trying to configure the iSCSI target, a question poped into my mind, what diffrence would it be if i configure a single target with multiple LUN or if i configure multiple targets each with single LUN, i have no idea what diffrence it makes.

So after a while of digging arond, i realized that the script provided from oracle howto will only work properly if you have one LUN in each target, but i had multiple LUNs in my iscsi-targets to have more space ... so i had to modify the script that returns the names of devices for persistant naming, here is the diff:

--- iscsidev.sh.bak 2008-05-10 19:44:49.000000000 +0300
+++ iscsidev.sh 2008-05-10 19:44:25.000000000 +0300
@@ -4,6 +4,7 @@
 
 BUS=${1}
 HOST=${BUS%%:*}
+LUN=${BUS##*:}
 
 [ -e /sys/class/iscsi_host ] || exit 1
 
@@ -16,5 +17,5 @@
    exit 1
 fi
 
-echo "${target_name##*.}"
+echo "${target_name##*.}LUN$LUN"