On 11/02/16 20:20, John R Pierce wrote:
On 2/11/2016 5:14 AM, lejeczek wrote:
nobody does use iscsi loopback over an lvm?
I'm not sure what 'iscsi loopback' even means. iSCSI is
used to mount a virtual block device hosted on another
system (initiator mode) or to share a virtual block device
(target mode), while loopback is used to mount a local
file as a device, such as an .iso image of an optical disc.
can you explain in a little more detail what you're trying
to do ?
whatever devices you have in your backstores (LIO
implementation is the default one I believe) and then
naturally in your targets, etc.. - on the same local system
you can loop them back = LIO presents them again to the
kernel as local scsi devices.
I'm thinking, maybe multipath should be involved/deployed here?
I can mount such a loopback iscsi target but I cannot use
FS's uuid because - in my case first UUID comes from LVM's
lv and then the same UUID comes via iscsi loopback - which
makes sense for it's the same one filesystem.
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