Hi. On Wed, Apr 15, 2015 at 08:41:07AM +0200, Petter Adsen wrote: > > > I just want to try it out to see how it works, it's not something I > > > need by any stretch of the imagination, so there's a limit to how > > > far down that rabbit-hole I want to go. > > > > As long as you don't forget to run lvscan on partner node after doing > > basically anything with LV on main node - you should be OK. > > > > But just to be on the safe side - don't export PV via iSCSI. Export > > LVs. > > May I ask why, so I don't mess anything up? I was thinking of exporting > maybe my VM VG, so that all LV's for VM's were available to both > machines. Or just the device itself.
That's the main reason. Creating PV-via-iSCSI configuration from the scratch is simple. It's maintaining it (or worse - changing it) is complex. For example, imagine the need to migrate all LVs from one PV to another. Without downtime, of course. Is it doable - yes. Is it simple - no. Besides, there's a *small* matter of backups, and in cases such as this I prefer straightforward approach. I.e. there's "storage" host, and there are "VM" hosts. "Storage" host provides LVs as /dev/sd* devices to "VM" hosts *and* manages backups. "VM" hosts merely do their VM thing. Reco -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: https://lists.debian.org/20150415065509.GA17616@x101h
