[OSR-devel] Setting the iSCSI Initiatorname

[Michael P. D. <MP...@Ac...>]

Hi,

during testing of OSR in an iSCSI setup, the iSCSI-Target (HP Lefthand)
has problems caused by 
using the same Initiatorname on every node.
Here is a patch that uses an extended rootsource syntax for setting an
node-specific Initiatorname.
The syntax used is: <rootsource
name="iscsi://<target-ip>:<port>/<Initiatorname>"/>

Currently this could be CentOS/RHEL specific as the file
/etc/iscsi/initiatorname.iscsi is written.
The patch is against the beta repo.

I hope this could be usefull for someone else.

Br,
Michael  

--- iscsi-lib.sh-orig   2009-07-22 12:15:15.000000000 +0200
+++ iscsi-lib.sh        2009-07-22 12:15:01.000000000 +0200
@@ -34,6 +34,25 @@
 iscsiparser1="iscsi://([^:/]+)"
 iscsiparser2="iscsi://([^:]+):([[:digit:]]+)/"
 iscsiparser3="^iscsi"
+iscsiparser4="iscsi://([^:]+):([[:digit:]]+)/(.+)"
+
+
+#****f* iscsi-lib.sh/getISCSIInitiatorFromParam
+#  NAME
+#    getISCSIInitiatorFromParam
+#  SYNOPSIS
+#    function getISCSIInitiatorServerFromParam {
+#  MODIFICATION HISTORY
+#  IDEAS
+#  SOURCE
+#
+function getISCSIInitiatorFromParam {
+    echo $1 | awk '
+{
+   match($1, "'$iscsiparser4'", iscsiparms);
+   print iscsiparms[3];
+}'
+}

 #****f* iscsi-lib.sh/getISCSIServerFromParam
 #  NAME
@@ -133,7 +152,13 @@
        local nodename=$2
        local iscsiserver=$(getISCSIServerFromParam $rootsource)
        local iscsimodules="iscsi_tcp"
+       local iscsiinitiatorname=$(getISCSIInitiatorFromParam
$rootsource)
        echo_local -n "Starting iscsid"
+
+       if [ -n "$iscsiinitiatorname" ]; then
+               echo "InitiatorName=$iscsiinitiatorname"
>/etc/iscsi/initiatorname.iscsi
+               echo_local -n "Initiatorname is $iscsiinitiatorname"
+       fi
     modprobe -q iscsi_tcp
     modprobe -q ib_iser
     exec_local iscsid

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