[Gluster-users] Storage Cluster Question

[Francisco Cabrita]

On Mon, Jun 29, 2009 at 11:37 PM, Mickey Mazarick <mic at digitaltadpole.com>wrote:

> Have you seen a distributed parallel fault tolerant file system that
> doesn't take a serious hit doing mmaps or direct io?
> This is a serious question, I've installed luster to contrast recently and
> it didn't measure up but I'm wondering what other DPFT filers anyone has
> tried and for what applications?
> The wiki list is here:
> http://en.wikipedia.org/wiki/List_of_file_systems#Distributed_parallel_fault_tolerant_file_systems


This is a very interesting topic. I would also appreciate ML feedback on
this.


>
> <http://en.wikipedia.org/wiki/List_of_file_systems#Distributed_parallel_fault_tolerant_file_systems>
>
> Can anyone give a positive or negative on any of these? Perhaps we can use
> some of the positives of others to drive gluster development.


Well,  it's not listed there and in fact I don't know if I could add this to
that DPFT list, but on FreeBSD we have a interesting framework to handle
Devices, GEOM: Modular Disk Transformation Framework [
http://www.freebsd.org/doc/en/books/handbook/geom.html ] above this I can
add "geoms". In this Distributed scenario I can plan to have a base GEOM
with a bunch of distributed disks agregated via GEOM GGATE and above that
some RAID0 or so.
I have a very positive impressions about this. Friends are using this in
production.

Francisco


>
>
> -Mic
>
>
> Nathan Stratton wrote:
>
>> On Mon, 29 Jun 2009, Todd Daugherty wrote:
>>
>>  I have not used it in production yet but I did a test with:
>>> http://gluster.org/docs/index.php/Translators/cluster/stripe
>>>
>>> That was quite nice across 8 servers for Quicktime files (average file
>>> 1GB).
>>>
>>> Why would you say no to Xen VM files?
>>>
>>
>> Because with xen you need to --disable-direct-io-mode to get it to work
>> and that kills performance.
>>
>> Raw disk:
>> 8589934592 bytes (8.6 GB) copied, 21.0523 seconds, 408 MB/s
>>
>> Gluster:
>> 8589934592 bytes (8.6 GB) copied, 47.4356 seconds, 181 MB/s
>>
>> Gluster --disable-direct-io-mode
>> 8589934592 bytes (8.6 GB) copied, 336.514 seconds, 25.5 MB/
>>
>>
>>  <>
>>>
>> Nathan Stratton                                CTO, BlinkMind, Inc.
>> nathan at robotics.net                         nathan at blinkmind.com
>> http://www.robotics.net                        http://www.blinkmind.com
>>
>> _______________________________________________
>> Gluster-users mailing list
>> Gluster-users at gluster.org
>> http://zresearch.com/cgi-bin/mailman/listinfo/gluster-users
>>
>
>
>
>
> _______________________________________________
> Gluster-users mailing list
> Gluster-users at gluster.org
> http://zresearch.com/cgi-bin/mailman/listinfo/gluster-users
>



-- 
blog: http://sufixo.com/raw
http://www.linkedin.com/in/franciscocabrita
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://supercolony.gluster.org/pipermail/gluster-users/attachments/20090630/9df48b12/attachment.html>