Great, thanks, Marcus.
On Fri, Jan 11, 2013 at 1:33 PM, Marcus Sorensen <shadow...@gmail.com>wrote: > Looks like with iSCSI you give it the dns name of your target, the IQN, and > the lun #. Presuably it sets up an SR from that lun and carves volumes out > of that, similar to how the CLVM works. Or maybe it puts a filesystem on it > and mounts it, not sure. > > On Fri, Jan 11, 2013 at 1:22 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) > > > > > > 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> > >> *™* > >> > > > > > -- *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> *™*
