ZFS and ISCSI question

[Kaya Saman]

Hi,


I'm trying to find out how ZFS and ISCSI work together. So far I have 
followed the guide in the handbook:


https://www.freebsd.org/doc/handbook/network-iscsi.html


Based on the guide what I have done is created 3 demo files using dd:


disk1, disk2, disk3


then created a zpool around them: zpool create iscsi-tst /data/disk1 
/data/disk2 /data/disk3


and finally a ZVOL: zfs create -V iscsi-tst/tank


 From the guide a basic (for testing only) ctl.conf:


portal-group pg0 {
     discovery-auth-group no-authentication
     listen 0.0.0.0
     listen [::]
}

target iqn.2012-06.com.example:target0 {
     auth-group no-authentication
     portal-group pg0

     lun 0 {
         path iscsi-tst/tank
         size 500M
     }
}


and then on the Initiator machine:


iscsictl -A -p <IP Address> -t iqn.2012-06.com.example:target0


I can confirm a connection:


# iscsictl -L
Target name                          Target portal    State
iqn.2012-06.com.example:target0      <IP Address> Connected: da24


But if we look at dmesg output it is saying the size cannot be queried?


da24 at iscsi4 bus 0 scbus9 target 0 lun 0
da24: <FREEBSD CTLDISK 0001> Fixed Direct Access SPC-4 SCSI device
da24: Serial Number MYSERIAL   0
da24: 150.000MB/s transfers
da24: Command Queueing enabled
da24: Attempt to query device size failed: NOT READY, Logical unit not 
ready, manual


I am wondering what I have done wrong and additionally is it possible to 
get the Initiator to see the zpool/ZVOL so that I can create a zfs 
dataset on it?


Thanks.


Kaya