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Posted to users@cloudstack.apache.org by David Ortiz <dp...@outlook.com> on 2013/09/13 14:11:57 UTC
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
RE: Support for multiple Local Storage volumes
Posted by David Ortiz <dp...@outlook.com>.
Kirk,
I was going to look at doing that, so thanks for pointing me to the existing ticket. I'll send out a message on dev to see if anyone can point me to where I would need to look in the code to add that. It is somewhat necessary for what we want to do on the cluster we are setting up at work, so if it's not too difficult that may be the route we take.
Thanks, Dave
> Date: Thu, 19 Sep 2013 16:03:12 -0700
> From: kirkkosinski@gmail.com
> To: users@cloudstack.apache.org
> CC: Edison.su@citrix.com
> Subject: Re: Support for multiple Local Storage volumes
>
> 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:
>
> https://issues.apache.org/jira/browse/CLOUDSTACK-4712
>
> Best regards,
> Kirk
>
> On 09/13/2013 01:48 PM, Edison Su wrote:
> >
> >
> >> -----Original Message-----
> >> From: David Ortiz [mailto:dportiz@outlook.com]
> >> Sent: Friday, September 13, 2013 1:33 PM
> >> To: users@cloudstack.apache.org
> >> 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: Edison.su@citrix.com
> >>> To: users@cloudstack.apache.org
> >>> 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
> >>>
> >>> http://people.apache.org/~ke4qqq/docs2/en-
> >> US/Apache_CloudStack/4.0/htm
> >>> l/Admin_Guide/hypervisor-support-for-primarystorage.html
> >>>
> >>>> -----Original Message-----
> >>>> From: David Ortiz [mailto:dportiz@outlook.com]
> >>>> Sent: Friday, September 13, 2013 5:12 AM
> >>>> To: users@cloudstack.apache.org
> >>>> 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
> >>
Re: Support for multiple Local Storage volumes
Posted by Kirk Kosinski <ki...@gmail.com>.
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:
https://issues.apache.org/jira/browse/CLOUDSTACK-4712
Best regards,
Kirk
On 09/13/2013 01:48 PM, Edison Su wrote:
>
>
>> -----Original Message-----
>> From: David Ortiz [mailto:dportiz@outlook.com]
>> Sent: Friday, September 13, 2013 1:33 PM
>> To: users@cloudstack.apache.org
>> 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: Edison.su@citrix.com
>>> To: users@cloudstack.apache.org
>>> 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
>>>
>>> http://people.apache.org/~ke4qqq/docs2/en-
>> US/Apache_CloudStack/4.0/htm
>>> l/Admin_Guide/hypervisor-support-for-primarystorage.html
>>>
>>>> -----Original Message-----
>>>> From: David Ortiz [mailto:dportiz@outlook.com]
>>>> Sent: Friday, September 13, 2013 5:12 AM
>>>> To: users@cloudstack.apache.org
>>>> 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
>>
RE: Support for multiple Local Storage volumes
Posted by David Ortiz <dp...@outlook.com>.
Only about half my vms are working on local storage. The other half are on shared storage using live migration. =/
Thanks for the suggestion though. That may be useful for another installation I'm getting ready to set up.
Dave
> From: Edison.su@citrix.com
> To: users@cloudstack.apache.org
> Subject: RE: Support for multiple Local Storage volumes
> Date: Fri, 13 Sep 2013 20:48:52 +0000
>
>
>
> > -----Original Message-----
> > From: David Ortiz [mailto:dportiz@outlook.com]
> > Sent: Friday, September 13, 2013 1:33 PM
> > To: users@cloudstack.apache.org
> > 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: Edison.su@citrix.com
> > > To: users@cloudstack.apache.org
> > > 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
> > >
> > > http://people.apache.org/~ke4qqq/docs2/en-
> > US/Apache_CloudStack/4.0/htm
> > > l/Admin_Guide/hypervisor-support-for-primarystorage.html
> > >
> > > > -----Original Message-----
> > > > From: David Ortiz [mailto:dportiz@outlook.com]
> > > > Sent: Friday, September 13, 2013 5:12 AM
> > > > To: users@cloudstack.apache.org
> > > > 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
> >
RE: Support for multiple Local Storage volumes
Posted by Edison Su <Ed...@citrix.com>.
> -----Original Message-----
> From: David Ortiz [mailto:dportiz@outlook.com]
> Sent: Friday, September 13, 2013 1:33 PM
> To: users@cloudstack.apache.org
> 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: Edison.su@citrix.com
> > To: users@cloudstack.apache.org
> > 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
> >
> > http://people.apache.org/~ke4qqq/docs2/en-
> US/Apache_CloudStack/4.0/htm
> > l/Admin_Guide/hypervisor-support-for-primarystorage.html
> >
> > > -----Original Message-----
> > > From: David Ortiz [mailto:dportiz@outlook.com]
> > > Sent: Friday, September 13, 2013 5:12 AM
> > > To: users@cloudstack.apache.org
> > > 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
>
RE: Support for multiple Local Storage volumes
Posted by David Ortiz <dp...@outlook.com>.
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.
Thanks, Dave
> From: Edison.su@citrix.com
> To: users@cloudstack.apache.org
> 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
>
> http://people.apache.org/~ke4qqq/docs2/en-US/Apache_CloudStack/4.0/html/Admin_Guide/hypervisor-support-for-primarystorage.html
>
> > -----Original Message-----
> > From: David Ortiz [mailto:dportiz@outlook.com]
> > Sent: Friday, September 13, 2013 5:12 AM
> > To: users@cloudstack.apache.org
> > 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
RE: Support for multiple Local Storage volumes
Posted by Edison Su <Ed...@citrix.com>.
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
http://people.apache.org/~ke4qqq/docs2/en-US/Apache_CloudStack/4.0/html/Admin_Guide/hypervisor-support-for-primarystorage.html
> -----Original Message-----
> From: David Ortiz [mailto:dportiz@outlook.com]
> Sent: Friday, September 13, 2013 5:12 AM
> To: users@cloudstack.apache.org
> 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