I'm not super familiar with all of the xen setup, but anything xen supports as an SR should be usable in presetup mode. On Jan 13, 2013 10:48 AM, "Sebastien Goasguen" <run...@gmail.com> wrote:
> > On Jan 11, 2013, at 9:22 PM, Marcus Sorensen <shadow...@gmail.com> wrote: > > > On the KVM side, you can do NFS, Local disk storage, CLVM (shared block > > device that has Clustered LVM on top of it, a primary pool is a > particular > > volume group and cloudstack carves out logical volumes out of it as > > needed), and RBD (RADOS Block devices, Ceph shared storage. You point it > at > > your cluster and cloudstack creates RBD devices as needed). Also > > SharedMountPoint for something like GFS,OCFS or some shared filesystem. > > > > Xen has NFS, a 'PreSetup' where you create an SR in your Xen cluster and > > pass the SR to it (I think), and iSCSI (I'm not clear on how this works, > > but I'm sure its in the docs) > > Hi Marcus, that's a nice summary. > > Can't we do any of the distributed file systems for primary storage with > Xen ? > > -Sebastien > > > > > On Fri, Jan 11, 2013 at 1:14 PM, Mike Tutkowski < > > mike.tutkow...@solidfire.com> wrote: > > > >> So, being new to CloudStack, I'm not sure what kind of storage protocols > >> are currently supported in the product. To my knowledge, NFS shares are > >> what CloudStack has only supported in the past. Does CloudStack support > >> iSCSI targets at present? > >> > >> Thanks! > >> > >> > >> On Thu, Jan 10, 2013 at 3:58 PM, Mike Tutkowski < > >> mike.tutkow...@solidfire.com> wrote: > >> > >>> Thanks, Edison! > >>> > >>> That's very helpful info. > >>> > >>> > >>> On Thu, Jan 10, 2013 at 3:49 PM, Edison Su <edison...@citrix.com> > wrote: > >>> > >>>> > >>>> > >>>>> -----Original Message----- > >>>>> From: Mike Tutkowski [mailto:mike.tutkow...@solidfire.com] > >>>>> Sent: Thursday, January 10, 2013 2:22 PM > >>>>> To: cloudstack-dev@incubator.apache.org > >>>>> Subject: CloudStack Storage Question > >>>>> > >>>>> Hi everyone, > >>>>> > >>>>> I'm new to CloudStack and am trying to understand how it works with > >>>>> regards to storage exposed to hypervisors. > >>>>> > >>>>> For example: > >>>>> > >>>>> My company, SolidFire, has a feature that exists at the > virtual-volume > >>>> (for us, > >>>>> equivalent to a LUN) layer: Hard Quality of Service. So, for each > >>>> volume in > >>>>> one of our clusters, you can specify a minimum and maximum number of > >>>>> IOPS (beneficial to Cloud Service Providers who want to write hard > >> SLAs > >>>>> around performance). > >>>>> > >>>>> We have a potential customer who is using CloudStack currently with > >>>> another > >>>>> vendor (via NFS shares). They asked me today how a hypervisor run > >> under > >>>>> CloudStack would see the iSCSI storage exposed to them in one of our > >>>>> volumes. More specifically, can the hypervisor see a volume per VM > or > >>>> is the > >>>>> hypervisor forced to create all of its VMs off of the same volume? > If > >>>> the > >>>>> hypervisor is forced to create all of its VMs off of the same volume, > >>>> then this > >>>>> would significantly reduce the value of our hard quality of service > >>>> offering > >>>>> since all of these VMs would have to run at the same performance SLA. > >>>> > >>>> > >>>> It depends on hypervisor, for KVM, per VM per LUN will work, xenserver > >>>> doesn't work. For Vmware, it will work, but with a limitation(one ESXi > >> host > >>>> can only have 256 LUN at max). > >>>> > >>>>> > >>>>> Can anyone help me better understand how this would work? > >>>>> > >>>>> Thanks so much!! > >>>>> > >>>>> -- > >>>>> *Mike Tutkowski* > >>>>> *Senior CloudStack Developer, SolidFire Inc.* > >>>>> e: mike.tutkow...@solidfire.com > >>>>> o: 303.746.7302 > >>>>> Advancing the way the world uses the > >>>>> cloud<http://solidfire.com/solution/overview/?video=play> > >>>>> *(tm)* > >>>> > >>> > >>> > >>> > >>> -- > >>> *Mike Tutkowski* > >>> *Senior CloudStack Developer, SolidFire Inc.* > >>> e: mike.tutkow...@solidfire.com > >>> o: 303.746.7302 > >>> Advancing the way the world uses the cloud< > >> http://solidfire.com/solution/overview/?video=play> > >>> *™* > >>> > >> > >> > >> > >> -- > >> *Mike Tutkowski* > >> *Senior CloudStack Developer, SolidFire Inc.* > >> e: mike.tutkow...@solidfire.com > >> o: 303.746.7302 > >> Advancing the way the world uses the > >> cloud<http://solidfire.com/solution/overview/?video=play> > >> *™* > >> > >
