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--- unix:linux:iscsi_tricks_and_techniques [2019/08/14 19:43] – rodolico
+++ unix:linux:iscsi_tricks_and_techniques [2022/12/17 14:05] (current) – [Adding new target on target device] rodolico
@@ Line 30: / Line 30: @@
 <code perl addAlliSCSIS.pl>
-#! /usr/bin/perl -w
+#! /usr/bin/env perl
-my @servers = ( '10.5.136.1' );
+use strict;
+use warnings;
+# change following to be a list of 1 or more iSCSI targets to be queried
+my @servers = ( '10.10.10.10','10.10.10.9' );
 my %targets;
 foreach my $server ( @servers ) {
+   print "\n" . '-'x40 . "\nGetting targets on server $server\n" . '-'x40 . "\n";
    my @list = `iscsiadm -m discovery -t st -p $server`;
    chomp @list;
@@ Line 50: / Line 55: @@
       # only add them if they are in this IP
       $targets{ $targetName } = $portal if $portal =~ m/^$server/;
+      print "$targetName\t$targets{ $targetName }\n";
    }
 }
+print "\n" . '-'x40 . "\nGetting active sessions\n". '-'x40 . "\n";
 # now, get active sessions so we can filter them
 my @activeSessions = `iscsiadm -m session`;
 chomp @activeSessions;
-foreach $session ( @activeSessions ) {
+foreach my $session ( @activeSessions ) {
-   $session =~ m/([0-9,:]+).* (.*)$/;
+   $session =~ m/^.*[^0-9:.]([0-9,:.]+).*(iqn\S*)/;
    my ( $portal,$targetName ) = ( $1,$2 );
-   delete $targets{ $targetName } if exists( $targets{$targetName} );
+   print "$portal\t$targetName";
+   if ( exists( $targets{$targetName} ) ) {
+      print "\tNOT updating\n";
+      delete $targets{ $targetName };
+   } else {
+      print "Needs to be added\n";
+   }
 }
@@ Line 74: / Line 87: @@
 }
 # print `ls /dev/disk/by-path/`;
 </code>
@@ Line 107: / Line 121: @@
 </code>
-Edit /etc/iet/ietd.conf and add the following lines
+Edit /etc/iet/ietd.conf (Linux) or /etc/ctl.conf (BSD) and add the following lines
 <code>
@@ Line 115: / Line 129: @@
 </code>
 Restart iet
-<code bash>  /etc/init.d/iscsitarget restart</code>
+<code bash>/etc/init.d/iscsitarget restart # Linux
+service ctld reload # FreeBSD
+</code>
 ==== Adding new target to initiator ====
@@ Line 162: / Line 178: @@
 # first, log out of the session
 iscsiadm -m node --target='name of target' --portal "ip:port" --logout
-# now, do a discovery and delete the entry from your local database
+# now, do a remove it from the session
-iscsiadm -m discovery --target='name of target' --portal "ip:port" -o delete
+iscsiadm -m node --target='name of target' --portal "ip:port" -o delete
 </code>