for my vm I'd like to specify a disk image which would be on an iscsi target.

Currently, by using targets directly, I'd just specify the path in /dev/disk/by-path/ip-192.168.1.2:3260-iscsi-iqn.myiqn

but how to specify a file which is actually INSIDE this path, ex. /dev/disk/by-path/ip-192.168.1.2:3260-iscsi-iqn.myiqn/myVmImage.img ?

I saw that there is another path in /media/myHomeUser/anId but do this id changes each time?