sometime by the end of Q1 or early Q2 of 2008. avati 2007/12/16, DeeDee Park <deedee6905@xxxxxxxxxxx>: > > > I agree. The "read-only" option is confusing and probably a rename to > clarify its function would be helpful. Would something along the lines of > "no more additions" be more accurate? > > The "hot migrate" is what I'm am looking for. How long before this might > be available? > > ------------------------------ > Date: Sat, 15 Dec 2007 06:45:30 +0530 > From: avati@xxxxxxxxxxxxx > To: deedee6905@xxxxxxxxxxx > Subject: Re: Decomission a brick > CC: gluster-devel@xxxxxxxxxx > > > currently you can mark certain subvolumes as read-only in unify to do > this. > > Would then the files be copied to a different brick when the files are > opened during a "find /mnt/glusterfs"? The feature would be a little more > than just making it read-only. > > > this is currently not the way it is. even if you mark a subvolume > 'read-only' in unify, it only means that new files will not be scheduled > there. existing files are still modifiable and deletable. (probably > read-only is not the right option name). if you _really_ want one subvolume > to be equivalent to mounting the disk with "-o ro", you could either > > a. actually mount the backend fs with "-o ro" and still glusterfs is happy > serving it as-is :) > b. load the filter xlator in the path of that subvolume (either in b/w > unify and protocol/client, or in the server spec) > > It would have to allow files to get offloaded and removed from the brick > while still being in service. I assume the read-only would still make it > possible to have only one copy on the decomissioned brick. > > > the hot migrate should address these issues. > > avati > > > -- > If I traveled to the end of the rainbow > As Dame Fortune did intend, > Murphy would be there to tell me > The pot's at the other end. > > > ------------------------------ > Get the power of Windows + Web with the new Windows Live. Get it now!<http://www.windowslive.com?ocid=TXT_TAGHM_Wave2_powerofwindows_122007> > -- If I traveled to the end of the rainbow As Dame Fortune did intend, Murphy would be there to tell me The pot's at the other end.
