Re: gfs2 v. zfs?

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I would love to get an education here. From usage model point of view,
what is the difference between a "parallel file system" and a "cluster
file system" ? i.e., when to use a parallel file system and when to
use a cluster file system ?

.. Wendy

On Mon, Jan 24, 2011 at 1:10 PM, Rafa Grimán <rafagriman@xxxxxxxxx> wrote:
> Hi :)
>
> On Monday 24 January 2011 21:25 Wendy Cheng wrote
>> Sometime ago, the following was advertised:
>>
>> "ZFS is not a native cluster, distributed, or parallel file system and
>> cannot provide concurrent access from multiple hosts as ZFS is a local
>> file system. Sun's Lustre distributed filesystem will adapt ZFS as
>> back-end storage for both data and metadata in version 3.0, which is
>> scheduled to be released in 2010."
>>
>> You can google "Lustre" to see whether their plan (built Lustre on top
>> of ZFS) is panned out.
>
>
> But Lustre isn't a clustered filesystem, it's a parallel filesystem. Similar to
> pNFS, PanFS, ... Comparing GFS to Lustre wouldn't be quite right.
>
>   Rafa
>
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