[Xen-users] domU leaks disk volume configs into to dom0 - iscsi / lvm

[Mike <mike+xen@xxxxxxxxxxxxxxxxx>]

Hi,

    My environment is linux / ubuntu 16, and I have noticed that iscsi 
block devices used by guests are scanned by lvm on the dom0. If any 
volume groups / disk labels are found, LVM will add them to dom0, which 
could potentaly allow one domu to access a disk resource of another 
unrelated domu.
    I found this discussion from 2012 which recognized the problem:

    https://bugs.launchpad.net/ubuntu/+source/lvm2/+bug/995709

    I have also noted other side effects. For example, when shutting 
down a guest with iscsi backed storage, lvm doesn't seem to release the 
mappings and they hang around for eternity (till reboot).
    Is there some xen specfic iscsi config options or such that 
addresses these issues?

Mike-


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