ISCSI Storage

Available iSCSI Storages

The following iSCSI blocks are available for ARDITI:

iSCSI Target	Portal	Server	Purpose
iqn.2005-10.org.freenas.ctl:iscsi-arditi	192.168.10.238,3260	nas.int.m-iti.org	Used as an external archival storage for ARDITI

Mount Points

The following are the mount points for the mapped iSCSI targets:

iSCSI Target	Local Mount Point	Server	Purpose
iqn.2005-10.org.freenas.ctl:iscsi-arditi	/mnt	hera	Used as an external archival storage for Hera.

How to use the iSCSI initiator and mount it

• First of all we need to install open-iscsi:

sudo apt install open-iscsi

• Edit /etc/iscsi/iscsid.conf and set node.startup to automatic:

node.startup = automatic

• Restart the iSCSI initiator:

sudo service open-iscsi restart

• Now we connect to the target (FreeNAS) and check what storage devices it has to offer:

sudo iscsiadm -m discovery -t st -p <freenas_ip>
sudo iscsiadm -m node

• The output should look something like this:

sudo iscsiadm -m discovery -t st -p 192.168.10.238
192.168.10.238:3260,2 iqn.2005-10.org.freenas.ctl:iscsi-arditi

sudo iscsiadm -m node
192.168.10.238:3260,2 iqn.2005-10.org.freenas.ctl:iscsi-arditi

• Login to the target

sudo iscsiadm -m node --login

• Confirm the established session

sudo iscsiadm -m session -o show

• Confirm the partitions

sudo cat /proc/partitions

#The output should like this 

major minor  #blocks  name

  11        0    1048575 sr0
   2        0          4 fd0
   8        0  209715200 sda
   8        1    2097152 sda1
   8        2          1 sda2
   8        5  207616000 sda5
   8       16   67108864 sdb
   8       17   67107840 sdb1
 253        0  234876928 dm-0
 253        1    6291456 dm-1
   8       32 2147483664 sdc

• Install Partition Editor:

sudo apt install parted

• Create Label:

sudo parted --script /dev/sdc "mklabel msdos"

• Create Partition:

sudo parted --script /dev/sdc "mkpart primary 0% 100%"

• Format with ext4:

sudo mkfs.ext4 /dev/sdc1

• Mount the partition:

sudo mount /dev/sdc1 /mnt

• Additionally we can get the UUID (in case to use in /etc/fstab)

sudo blkid

# The output should show something similar
/dev/sdc1: UUID="cd9bf391-94de-42a2-a608-baaeffca6780" TYPE="ext4" PARTUUID="030e4b30-01"

• Add the entry to fstab and make sure an extra line was left bellow to avoid warnings:

UUID="cd9bf391-94de-42a2-a608-baaeffca6780"     /mnt    auto    rw,user,auto    0       0