Mounting the iscsi target and checking performance.

Installing – Let’s use Debian based manager :

Apt-get install open-iscsi

Apt-get install iperf

Apt-get install nload

Scanning for targets :

Iscsiadmin -m discovery -t st -p target_ip

Iscsiadm -m node -u

Iscsiadm -m node –login

Check if you see the object :


New disk should appear in dev – like sdx \–sdx1

How to partition (if wasn’t partitioned yet)

Fdisk /dev/sdc





Mkfs.ext4 /dev/sdx1

Connecting the drive to system

Fsck /dev/sdc1

Mount /dev/sdc1 /mnt

Creating big file with random data :

Dd if=/dev/urandom of=rnd.20G count=1024 bs=20M

Also you can check the copy speed live via rsync (when copying from mount location to mount for example) –

rsync –progress source destination

Live interface monitoring can be done via

nload – same like top but for nics

And at the end if you’d like to check what is the performance of network(without storage) – connect second host to same switch and run iperf

Iperf -s  (on servers side)

Iperf -c x.x.x.x -d     (-D option for simultaneous bi-directional bandwidth measurement)