Joe Julian
2016-Nov-11 14:47 UTC
[Gluster-users] [Gluster-devel] Is it possible to turn an existing filesystem (with data) into a GlusterFS brick ?
Reposting to gluster-users as this is not development related. On November 11, 2016 6:32:49 AM PST, Pranith Kumar Karampuri <pkarampu at redhat.com> wrote:>On Fri, Nov 11, 2016 at 8:01 PM, Pranith Kumar Karampuri < >pkarampu at redhat.com> wrote: > >> >> >> On Fri, Nov 11, 2016 at 6:24 PM, Saravanakumar Arumugam < >> sarumuga at redhat.com> wrote: >> >>> >>> >>> On 11/11/2016 06:03 PM, Sander Eikelenboom wrote: >>> >>>> L.S., >>>> >>>> I was wondering if it would be possible to turn an existing >filesystem >>>> with data >>>> (ext4 with files en dirs) into a GlusterFS brick ? >>>> >>> It is not possible, at least I am not aware about any such solution >yet. >>> >>>> >>>> I can't find much info about it except the following remark at [1] >which >>>> seems >>>> to indicate it is not possible yet: >>>> >>>> Data import tool >>>> >>>> Create a tool which will allow importing already existing >data >>>> in the brick >>>> directories into the gluster volume. >>>> This is most likely going to be a special rebalance >process. >>>> >>>> So that would mean i would always have to: >>>> - first create an GlusterFS brick on an empty filesystem >>>> - after that copy all the data into the mounted GlusterFS brick >>>> - never ever copy something into the filesystem (or manipulate it >>>> otherwise) >>>> used as a GlusterFS brick directly (without going through a >GlusterFS >>>> client mount) >>>> >>>> because there is no checking / healing between GlusterFS's view on >the >>>> data and the data in the >>>> underlying brick filesystem ? >>>> >>>> Is this a correct view ? >>>> >>>> you are right ! >>> Once the data is copied into Gluster, it internally creates >meta-data >>> about data(file/dir). >>> Unless you copy it via Gluster mount point, it is NOT possible to >create >>> such meta-data. >>> >> >> No, it is possible. You just need to be a bit creative. >> >> Could you let me know how many such bricks you have which you want to >> convert to glusterfs. It seems like you want replication as well. So >if you >> give me all this information. With your help may be we can at least >come up >> with a document on how this can be done. >> > >Once the import is complete, whatever you are saying about not touching >the >brick directly and doing everything from the mount point holds. But we >can >definitely convert an existing ext4 directory structure into a volume. > > >> >> >>> >>> Thanks, >>> Saravana >>> >>> >>> _______________________________________________ >>> Gluster-devel mailing list >>> Gluster-devel at gluster.org >>> http://www.gluster.org/mailman/listinfo/gluster-devel >>> >> >> >> >> -- >> Pranith >> > > > >-- >Pranith > > >------------------------------------------------------------------------ > >_______________________________________________ >Gluster-devel mailing list >Gluster-devel at gluster.org >http://www.gluster.org/mailman/listinfo/gluster-devel-- Sent from my Android device with K-9 Mail. Please excuse my brevity. -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://www.gluster.org/pipermail/gluster-users/attachments/20161111/bab33595/attachment.html>