Please, forget my last question. I read [1] again and i rephrased my question.
Each host (or cluster of hosts) must have just one system datastore, rigth? The example in [1] for Multi-cluster is interesting, but i would like to change that scenario. There, some hosts can access a shared directory and other cant. My scenario is different: all hosts can access the shared directory but should be able to use a local storage. I mean, i would like to have two system DS for the hosts at same time. One shared for the users who dont care about I/O performance and desire a fast vm creation and live migration. Another for the users who need better I/O performance. Is that possible? Thanks a lot. [1] http://opennebula.org/documentation:rel3.6:system_ds 2012/7/19 Paulo A L Rego <pauloalr....@gmail.com> > Hi, > > 2012/7/18 Carlos Martín Sánchez <cmar...@opennebula.org> > >> Hi, >> >> If I understood correctly, you want to share the qcow datastore, but use >> local storage for the system datastore. >> > To do this, simply set the ssh TM driver for the system DS [1], and make >> sure you are exporting only /var/lib/one/datastores/100. >> > > Should i still share /var/lib/one/datastores/0 with all hosts? > > Thanks > > >> Regards >> >> [1] http://opennebula.org/documentation:rel3.6:system_ds >> -- >> Carlos Martín, MSc >> Project Engineer >> OpenNebula - The Open-source Solution for Data Center Virtualization >> www.OpenNebula.org | cmar...@opennebula.org | >> @OpenNebula<http://twitter.com/opennebula><cmar...@opennebula.org> >> >> >> >> On Wed, Jul 18, 2012 at 1:30 AM, Paulo A L Rego >> <pauloalr....@gmail.com>wrote: >> >>> Hello, >>> >>> Is there any way to use qcow and ssh transfer driver for the same host? >>> We have a shared FS with NFS using qcow, but when a lot of VMs are >>> launched, the storage I/O becomes a bottleneck. >>> We want to use both shared and local images for all hosts. >>> >>> We created two datastores - qcow(id 100) and ssh (id 101) - and the same >>> image was created for both. >>> The problem is that the running VMs are always placed in >>> /var/lib/one/datastores/0. >>> How the shared FS is mounted in that directory, when we deploy a VM >>> using the image on ssh datastore, the image is tranfered using ssh, but is >>> placed on the shared FS. >>> >>> We would like to have two directories for running VMs. This way we >>> could deploy on the shared FS on /var/lib/one/datastores/0 and use >>> another directory (maybe /var/lib/one/datastores/101) for local images. >>> >>> Any solution? >>> >>> Thanks a lot. >>> Paulo Antonio Leal Rego >>> Federal University of Ceara - Brazil >>> >>> >>> _______________________________________________ >>> Users mailing list >>> Users@lists.opennebula.org >>> http://lists.opennebula.org/listinfo.cgi/users-opennebula.org >>> >>> >> >
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