Gluster users - Mar 2013 - Gluster quotas, NFS quotas, brick quotas, quota-tools

Hi,

I'd like to try to migrate our NFS-based network to gluster, for
replication.

We currently use an ext4 filesystem with quota enabled.  We have a
couple thousand users (over LDAP), and their quotas vary wildly.  We
manage them with edquota(8) on the NFS server.  There are many
services which mount the NFS filesystem, and parse the output of
/usr/bin/quota (a webmail, two mail servers, various webpages, etc.)

I read the chapter on quotas in the admin guide, but I kind of don't
understand yet how does Gluster directory quota relate to the usual
quota stuff. Questions:

 - Is there any way to make Gluster use the ext4 disk quotas, or at
least import them?

 - I don't think edquota will work anymore?

 - If I mount a gluster filesystem with type=glusterfs, will
/usr/bin/quota be able to read quotas from it?

 - If not, can I otherwise read my quotas from the client?

 - If I mount a gluster filesystem using NFS, can the client read
quotas with /usr/bin/quota as usual?

Hi Leonardo,

Currently we don't have any method to import any back-end FS's quotas 
into gluster.

On Saturday 02 March 2013 03:26 AM, Leonardo Boiko
wrote:
> Hi,
>
> I'd like to try to migrate our NFS-based network to gluster, for
replication.
>
> We currently use an ext4 filesystem with quota enabled.  We have a
> couple thousand users (over LDAP), and their quotas vary wildly.  We
> manage them with edquota(8) on the NFS server.  There are many
> services which mount the NFS filesystem, and parse the output of
> /usr/bin/quota (a webmail, two mail servers, various webpages, etc.)
>
> I read the chapter on quotas in the admin guide, but I kind of don't
> understand yet how does Gluster directory quota relate to the usual
> quota stuff. Questions:
>
>   - Is there any way to make Gluster use the ext4 disk quotas, or at
> least import them?
No, its not possible (at least) as of now. By the way using ext4 
back-end and creating gluster volumes on existing data node is not 
***recommended**. *
> - I don't think edquota will work anymore? 
Gluster quota doesn't impair back-end FS quota behaviour, but gluster 
knows nothing about that, so you can't have a volume wide quota 
implementation.
> - If I mount a gluster filesystem with type=glusterfs, will 
> /usr/bin/quota be able to read quotas from it?
No, only way to manage gluster quota is from glusterd (gluster 
management daemon) commands.
>   - If not, can I otherwise read my quotas from the client?
>
>   - If I mount a gluster filesystem using NFS, can the client read
> quotas with /usr/bin/quota as usual?
No.
> _______________________________________________
> Gluster-users mailing list
> Gluster-users at gluster.org
> http://supercolony.gluster.org/mailman/listinfo/gluster-users
Varun
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