[Hampshire] Netgear readynas duo, nfs4 and iSCSI target

My icybox died recently and I've just replaced it with a Netgear
readynas duo 2110 1GB disc* . It runs Debian Sarge. I am really pleased
with it. Very easy to configure through the web interface, but it also
has a Linux application on the CD.

I tried to change the NFS mount from v3 to v4 but it would not mount,
"operation not permitted".

sudo mount -t nfs4 -o rw,hard,intr,bg backupserver:/ /archive

After adding the SSH addon (see below) and logging on, I had to add
"fsid=0" to /etc/exports

"/backup" *(fsid=0,insecure,insecure_locks,rw,async)

which defines the NFS v4 pseudo-filesystem root (only define one at the
top level). You then only need to mount the root "backupserver:/" in v4,
which in my config actually mounts the NAS /backup directory.

I was pleased to find it can run as an iscsi target too. It also has
links to the SSH .bin install file to get SSH access.
http://readynasfreeware.org/projects/nas-iscsi-target/wiki/New_Version

After installing I could not get a response when trying to initiate to
the server

iscsiadm -m discovery -t st -p backupserver --discover

The rc start/stop script /etc/init.d/rfw-iscsi-target needed the OPTIONS
set to the config path "-c /etc/ietd.conf", which it should use by
default. It also didn't stop the ietd process so fixed that too.

#!/bin/sh
#
# chkconfig: - 39 35
# description: Starts and stops the iSCSI target
# debianized start-stop script

PATH=/sbin:/bin:/usr/sbin:/usr/bin
DAEMON=/usr/sbin/ietd
OPTIONS="-c /etc/ietd.conf"
PIDFILE=/var/run/iscsi_trgt.pid

if [ -f /lib/init/vars.sh ]; then
     . /lib/init/vars.sh
fi

if [ -f /lib/lsb/init-functions ]; then
     . /lib/lsb/init-functions
fi

if [ -f /etc/sysconfig/iscsi-target ]; then
     . /etc/sysconfig/iscsi-target
fi

RETVAL=0

ietd_start()
{
     log_daemon_msg "Starting iSCSI Target" "ietd"
     modprobe -q crc32c
     modprobe iscsi_trgt
     start-stop-daemon --start --exec $DAEMON -- $OPTIONS
     PID=`pidof ietd`
         echo "$PID" > $PIDFILE
     log_end_msg $?
}

ietd_stop()
{
     log_daemon_msg "Stopping iSCSI Target" "ietd"
     ietadm --op delete
         echo " Removing PID"
         if [ -r $PIDFILE ]
     then
         cat $PIDFILE
     start-stop-daemon --stop --exec $DAEMON --pidfile $PIDFILE
     rm -f $PIDFILE
     else
     pkill ietd
     fi
     log_end_msg $?
}

ietd_status()
{
     PID=`pidof ietd`
     if [ $PID ]; then
         echo "iSCSI Target (pid $PID) is running..."
     else
         echo "iSCSI Target is stopped."
         exit 1
     fi
}

case "$1" in
   start)
         ietd_start
         ;;
   stop)
         ietd_stop
         ;;
   restart)
         ietd_stop
     sleep 1
     ietd_start
         ;;
   status)
     ietd_status
         ;;
   *)
         echo $"Usage: $0 {start|stop|restart|status}"
         exit 1
esac

exit 0


*Novatech £180 with an offer for a free second 1GB disc from Netgear. I
also purchased a new intel i3 laptop with no OS, saving £80 M$ tax.

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