Setting up QNAP 431P for iSCSI and LVM

[damon1]

Hi All,

[SOLVED]

my first post so sorry if I am asking something obvious.

I have set up a iSCSI drive on a QNAP 431P which I can use as a 1000GB drive directly on one VM.

What I would like to do is put LVM on the drive so I can them put several VM;s on to it (thick)

When I try to add LVM it finds the iSCSI drive and the LUN but when I hit create I get this error



I have no idea what it means and have tried everything I can find on the WEB.

My knowledge of Linux is very very limited but if someone can explain what I am doing wrong it would be greatly appreciated.

thanks
Damon

 

[wolfgang]

Hi,

do you use multipath?
What you get if you try this command on the shell.
pvcreate -v /dev/disk/by-id/scsi-36e843b65e844f75d2907d41d1d98b2d2

 

[damon1]

Hi Wolfgang,

thanks for the fast reply, in short I dont know what multi path is but I will google it now and get back to you ASAP.
As for the CMD here are the results, I check the scsi code about 10 times and I think it is correct

 

[wolfgang]

What you get

iscsiadm -m session

 

[damon1]

there are 2 QNAPS on the network but I am testing with the 431p
192.168.0.50
192.168.0.51

thanks

 

[wolfgang]

see

https://pve.proxmox.com/wiki/ISCSI_Multipath
https://www.qnap.com/en/how-to/tuto...d-use-the-iscsi-target-service-on-a-qnap-nas/

 

[damon1]

thanks - will do

 

[damon1]

Hi Wolfgang,

many thanks - didn't have to read far

# apt-get update
# apt-get install multipath-tools

no reboot needed - attached the LVM to the iSCSI was easy.

you DA MAN

thanks
Damon