[Gluster-users] Can I create a gluster volume from NFS mounted partitions?

[Atin Mukherjee]

-Atin
Sent from one plus one
On Nov 27, 2015 11:01 PM, "Mountrakis, Michael" <michael.mountrakis at sap.com>
wrote:
>
> Hi team
>
>
>
> I have a special case here: I am trying to create a glusterFS volume from
NFS mounts offered by third party.
>
> But it fails. The long story has as follows:
>
>
>
> I have two 50 GB NFS volumes offered from two data centres:
>
> In DC1:
>
> sbox1.mydomain:/q_files
>
> IN DC2:
>
> sbox2.mydomain:/q_files
>
>
>
> I dont have even ssh access to those sboxes so I cannot install or do
anything, but I am allowed to mount their directories with r/w over tcp.
>
>
>
> I have setup  a pair of VM nodes running glusterFs. One node on DC1, one
on DC2.
>
> On each of MY nodes, I mount the offered NFS partitions:
>
>
>
> The node in DC1  mybox1.mydomain.corp mounts the partition from DC1
machine:
>
> mount -t nfs sbox1.mydomain:/q_files   /nfs
>
>
>
> The node in DC2 mybox2.mydomain.corp mounts the partition from DC2
machine:
>
> mount -t nfs sbox2.mydomain:/q_files   /nfs
>
>
>
> I do the peering normally…
>
> root@ mybox1:~ # gluster peer probe mybox2.mydomain
>
> peer probe: success. Host mybox2.mydomain port 24007 already in peer list
>
>
>
> ok so far – no problem.
>
>
>
> Then I try to create a glusterFS volume from those mounts:
>
> root@ mybox1:~ # gluster volume create mynfs replica 2
mybox1.mydomain:/nfs mybox2.mydomain:/nfs force
>
> volume create: contentstore_nfs: failed: Glusterfs is not supported on
brick: mybox1.mydomain:/nfs.
>
> Setting extended attributes failed, reason: Operation not supported.
>
>
>
> I get this message: Operation not supported.
Underlying file system of gluster bricks need extended attribute support
and hence this failure.
>
>
>
> The question is obvious:
>
> Does GlusterFS supports such an operation? In other words, can I create a
glusterFS volume from bricks created from NFS mounts?
>
> If it is feasible, can you please specify what am I doing wrong?
>
>
>
> Best Regards
>
> mike
>
>
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