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From Kirk Kosinski <>
Subject Re: Support for multiple Local Storage volumes
Date Thu, 19 Sep 2013 23:03:12 GMT
SharedMountPoint will let you add it, but I believe the allocator will
still consider it as shared, even in a single-host cluster.  There is
the same issue with the similar PreSetup option on XenServer.

This adds a lot of confusion.  For example, to use the local storage you
will need to use disk/compute offerings with shared = true.  I filed an
enhancement request to add proper support for this:

Best regards,

On 09/13/2013 01:48 PM, Edison Su wrote:
>> -----Original Message-----
>> From: David Ortiz []
>> Sent: Friday, September 13, 2013 1:33 PM
>> To:
>> Subject: RE: Support for multiple Local Storage volumes
>> That's actually how I have my primary storage setup using a gfs2 cluster.  In
>> this case I want the storage to only be local to that host though.  I have some
>> VMs running that will work better if they have exclusive access to a spindle.
>> Just wanted to make sure this feature isn't already there before I start
>> poking around to figure out how to add the ability.
> Only one local storage per host is supported out-of-box. 
> In order to workaround the limitation, you can use one host one cluster, then add a lot
of "SharedMount" primary storages per cluster.
> As you are using local storage, you don't need live migration, thus, no need to group
hosts into a cluster.
>> Thanks,     Dave
>>> From:
>>> To:
>>> Subject: RE: Support for multiple Local Storage volumes
>>> Date: Fri, 13 Sep 2013 18:48:31 +0000
>>> You can always use "SharedMount" in KVM:
>>> KVM supports "Shared Mountpoint" storage. A shared mountpoint is a
>>> file system path local to each server in a given cluster. The path
>>> must be the same across all Hosts in the cluster, for example
>>> /mnt/primary1. This shared mountpoint is assumed to be a clustered
>>> filesystem such as OCFS2. In this case the CloudStack does not attempt
>>> to mount or unmount the storage as is done with NFS. The CloudStack
>>> requires that the administrator insure that the storage is available
>> US/Apache_CloudStack/4.0/htm
>>> l/Admin_Guide/hypervisor-support-for-primarystorage.html
>>>> -----Original Message-----
>>>> From: David Ortiz []
>>>> Sent: Friday, September 13, 2013 5:12 AM
>>>> To:
>>>> Subject: Support for multiple Local Storage volumes
>>>> Hello,
>>>>      I know as of Cloudstack 4.0.1 it was not possible to set up
>>>> multiple local storage volumes on a cloudstack host.  Is this still
>>>> the case?  I am looking to provide multiple drives as separate
>>>> volumes to simulate the kind of disk passthrough features that are
>> supported by VMWare.
>>>> Thanks,     David Ortiz

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