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) 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> > *™* >
