Hi Pablo, LVM provides a few advantages in some scenarios, but generally a shared file system like NFS fits more uses cases.
In a nutshell the difference between these two datastores is: * lvm: images are registered into LV. When a VM is instantiated, the LV is cloned to another LV in the same VG. The drawback is that it takes up a lot of space * fs_lvm: images are stored as files. When a VM is instantiated, the file is dumped into an LV in the VG with the name vg-one-<system_ds_id> In either case, the system datastore is a file-based datastores:. Take a look at the table in this section: http://docs.opennebula.org/4.6/administration/storage/sm.html#planning-your-storage Only shared and ssh can be system datastores (and vmfs for VMware). cheers, Jaime On Wed, Jul 23, 2014 at 3:47 AM, Pablo Hinojosa Nava <pablo...@gmail.com> wrote: > HI all, > > I have rent a single dedicated server with OVH and I run the OS inside a > USB stick. While I am setting up the datastores I cannot use LVM datastore > driver (fs_lvm) to system datastore, so the default system datastore is on > the USB stick. Which combination of types should I use for system, images > and files datastores? I am having problems mixing system shared datastores > with images fs_lvm datastores. How should I make the partitions to have a > good configuration? all shared with partitions? mixed (lvm + partitions)? > all LVM (would be possible?)? is fs_LVM much better than shared? > > Cheers, > > > Pablo Hinojosa. > PabloHinojosa.is > <http://pablohinojosa.is/this?utm_source=firma&utm_medium=correo&utm_campaign=firma> > > _______________________________________________ > Users mailing list > Users@lists.opennebula.org > http://lists.opennebula.org/listinfo.cgi/users-opennebula.org > > -- Jaime Melis Project Engineer OpenNebula - Flexible Enterprise Cloud Made Simple www.OpenNebula.org | jme...@opennebula.org
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