Supported cluster file system in v4.1

Supported cluster file system in v4.1

[Yudong Gao]

Hi,

We are trying to setup a pNFS testbed and deploy a cluster file system
on the storage servers. We find that the GFS from RedHat supports
pNFS. But is there any other cluster file system that also supports
pNFS?

Thanks.

Yudong

Re: Supported cluster file system in v4.1

[Benny Halevy]

On 2010-06-16 20:17, Yudong Gao wrote:
> Hi,
> 
> We are trying to setup a pNFS testbed and deploy a cluster file system
> on the storage servers. We find that the GFS from RedHat supports
> pNFS. But is there any other cluster file system that also supports
> pNFS?

Yudong, what are you looking for in your tests?
Another option for the pNFS files layout is spnfs which is good for basic testing
but it is experimental and not very well supported currently; i.e. if it breaks
under load you'll probably have to fix it yourself...

You could also consider testing exofs - a loosely clustered, objects-based
file system that provides scalable performance and is stable enough for
rather intensive workloads.

Benny

> 
> Thanks.
> 
> Yudong
> --
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Re: Supported cluster file system in v4.1

[Yudong Gao]

Hi Benny,

Thanks a lot for the reply! I will check exofs.

We are looking for a block-based cluster file system that can be
deployed on top of a cluster of commodity machines and can use the
machines' local storage instead of using a SAN. We find that OCFS2 is
a good candidate. Is it possible to use OCFS2 as the storage server in
pNFS?

Thanks a lot!

best,

Yudong

On Tue, Jun 22, 2010 at 11:49 PM, Benny Halevy <bhalevy@panasas.com> wrote:
> On 2010-06-16 20:17, Yudong Gao wrote:
>> Hi,
>>
>> We are trying to setup a pNFS testbed and deploy a cluster file system
>> on the storage servers. We find that the GFS from RedHat supports
>> pNFS. But is there any other cluster file system that also supports
>> pNFS?
>
> Yudong, what are you looking for in your tests?
> Another option for the pNFS files layout is spnfs which is good for basic testing
> but it is experimental and not very well supported currently; i.e. if it breaks
> under load you'll probably have to fix it yourself...
>
> You could also consider testing exofs - a loosely clustered, objects-based
> file system that provides scalable performance and is stable enough for
> rather intensive workloads.
>
> Benny
>
>>
>> Thanks.
>>
>> Yudong
>> --
>> To unsubscribe from this list: send the line "unsubscribe linux-nfs" in
>> the body of a message to majordomo@vger.kernel.org
>> More majordomo info at  http://vger.kernel.org/majordomo-info.html
>
>

Re: Supported cluster file system in v4.1

[Andy Adamson]

On Jun 23, 2010, at 1:14 PM, Yudong Gao wrote:

> Hi Benny,
>
> Thanks a lot for the reply! I will check exofs.
>
> We are looking for a block-based cluster file system that can be
> deployed on top of a cluster of commodity machines and can use the
> machines' local storage instead of using a SAN. We find that OCFS2 is
> a good candidate. Is it possible to use OCFS2 as the storage server in
> pNFS?

The Linux pNFS file layout server code is designed to be used by  
cluster file systems that use the DLM layer. So far, GFS2 has been  
exported by pNFS, but OCFS2 has not. It should (in theory) be  
relatively painless to export OCFS2...

-->Andy

>
> Thanks a lot!
>
> best,
>
> Yudong
>
> On Tue, Jun 22, 2010 at 11:49 PM, Benny Halevy <bhalevy@panasas.com>  
> wrote:
>> On 2010-06-16 20:17, Yudong Gao wrote:
>>> Hi,
>>>
>>> We are trying to setup a pNFS testbed and deploy a cluster file  
>>> system
>>> on the storage servers. We find that the GFS from RedHat supports
>>> pNFS. But is there any other cluster file system that also supports
>>> pNFS?
>>
>> Yudong, what are you looking for in your tests?
>> Another option for the pNFS files layout is spnfs which is good for  
>> basic testing
>> but it is experimental and not very well supported currently; i.e.  
>> if it breaks
>> under load you'll probably have to fix it yourself...
>>
>> You could also consider testing exofs - a loosely clustered,  
>> objects-based
>> file system that provides scalable performance and is stable enough  
>> for
>> rather intensive workloads.
>>
>> Benny
>>
>>>
>>> Thanks.
>>>
>>> Yudong
>>> --
>>> To unsubscribe from this list: send the line "unsubscribe linux- 
>>> nfs" in
>>> the body of a message to majordomo@vger.kernel.org
>>> More majordomo info at  http://vger.kernel.org/majordomo-info.html
>>
>>
> --
> To unsubscribe from this list: send the line "unsubscribe linux-nfs"  
> in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html

Re: Supported cluster file system in v4.1

[J. Bruce Fields]

On Wed, Jun 23, 2010 at 10:14:09AM -0700, Yudong Gao wrote:
> Hi Benny,
> 
> Thanks a lot for the reply! I will check exofs.
> 
> We are looking for a block-based cluster file system that can be
> deployed on top of a cluster of commodity machines and can use the
> machines' local storage instead of using a SAN. We find that OCFS2 is
> a good candidate.

As far as I can tell OCFS2 and GFS2 are identical in their requirement
for a shared disk.

--b.

> Is it possible to use OCFS2 as the storage server in
> pNFS?