[Gluster-users] linux flash filesystems and GlusterFS

[Dan Lambright]

One other note.. we have measured good performance results testing gluster when drives are completely replaced with flash.

http://www.gluster.org/2014/03/experiments-using-ssds-with-gluster/



----- Original Message -----
From: "Jay Vyas" <jayunit100 at gmail.com>
To: "Apostolos Manolitzas" <manap at intracom-telecom.com>
Cc: gluster-users at gluster.org
Sent: Wednesday, April 2, 2014 9:37:02 AM
Subject: Re: [Gluster-users] linux flash filesystems and GlusterFS

Are there any other requirements other than xattr support? Would be cool to find ever kernel fs impl and test them automatically on a server (maybe our rack space nodes) somewhere for a series of known gluster requirements. 

On Apr 2, 2014, at 6:49 AM, Apostolos Manolitzas < manap at intracom-telecom.com > wrote: 




Hello, 

as far as I can see, from the UBIFS Faq http://www.linux-mtd.infradead.org/doc/ubifs.html#L_xattr 

UBIFS supports extended attributes if the corresponding configuration option is enabled (no additional mount options are required). It supports the user , trusted , and security name-spaces. However, access control lists (ACL) support is not implemented. 

beyond that, no clue if it's working. 

-Apostolos 

On 04/02/2014 02:41 PM, Carlos Capriotti wrote: 



Hi. 

i am not very familiar with those filesystems you mentioned, but as a rule of thumb, a FS for gluster has to support extended attributes, so, this is a good way to start: check if you can tdo that. 

Also, when setting gluster with the recommended configuration, you are supposed to use XFS, and the inodes have to be defined with -i size=512. 

If experimenting with other FS, make sure you can set the inode as well, just to be in the safe side. 

EXT4 is not a good option right now, just in case you are wondering. Lots of discussion and documentation on those issues in past threads of the list. 

Cheers. 


On Wed, Apr 2, 2014 at 1:34 PM, Apostolos Manolitzas < manap at intracom-telecom.com > wrote: 



Hello all, 

I just discovered the GlusterFS while looking for a solution for high availability on our NAND flashes. We use ubifs and jffs2 for filesystem and we would like to apply some high availability strategy to a part of the flash. So has anyone tested GlusterFS with this setup? Is it a viable solution or should we move to an upper layer solution? 

thanks for any opinion, 

-Apostolos 






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