Setting up QNAP 431P for iSCSI and LVM

damon1

damon1

Well-Known Member
Apr 18, 2019
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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

upload_2019-4-18_14-54-29.png

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
 
Last edited:
Hi,

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

upload_2019-4-18_16-24-47.png
 
What you get

iscsiadm -m session
 
upload_2019-4-18_16-55-19.png

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

thanks
 
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
 
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