> -----Original Message----- > From: Nitin Mehta [mailto:nitin.me...@citrix.com] > Sent: Thursday, August 02, 2012 8:18 AM > To: cloudstack-dev@incubator.apache.org > Subject: RE: Local storage support for data volumes > > David - I think the cluster is supposed to be homogeneous in terms of > hardware and hypervisor version and selectively having local storage > for hosts shouldn't be a problem. Allocation also looks at cluster to > have a rough idea if the vm can be accommodated or not. > Since the local storage is tied at the host level I wanted to find > community's viewpoint if we want the flexibility at the lowest level or > not.
Local storage is per host, not per cluster, and it's not created by cloudstack mgt server. If admin doesn't want local storage for a particular host, he can disable it during hypervisor host installation or setup. What's the usage case to put the local storage at zone/cluster level? > > But then on second thought I myself don't see a lot of merit of having > this flexibility at the host level at the moment and it might become > little tedious for the admin to disable local storage. > Another concern is that if you have the flag at cluster/zone level then > how would you enable it on the fly - would you be creating local > storages for all the hosts within that cluster/zone ? Has that been > addressed ? > > Thanks, > -Nitin > > -----Original Message----- > From: David Nalley [mailto:da...@gnsa.us] > Sent: Thursday, August 02, 2012 5:22 PM > To: cloudstack-dev@incubator.apache.org > Subject: Re: Local storage support for data volumes > > On Tue, Jul 31, 2012 at 5:34 AM, Nitin Mehta <nitin.me...@citrix.com> > wrote: > > Can we not provide the flexibility while adding a host. So when the > admin adds a host he has the provision of enabling/disabling local > storage for that host. I think that is the lowest level of granularity > that we can provide to the admin ? > > But hosts within a cluster are supposed to be homogenous. And aren't > allocation planning decisions made at the cluster level? What benefit > do you see by making this specific to the host as opposed to the > cluster? > > --David
