Is there a command to show this type of volume detail I could use? 2013/09/25 15:37?Kaushal M <kshlmster at gmail.com> ??????: >> On Wed, Sep 25, 2013 at 11:38 AM, Jake G. <dj_dark_junglist at yahoo.com> wrote: >> Thank you for your reply. Still need a bit of clarification. >> >> If I copy a 20GB file to the volume how can i still have 180GB left if the >> file gets copied (mirrored) to both glusterfs servers? >> >> My goal is to be able to have redundancy if one of the servers crashes while >> also being able increase the total amount of available volume space. >> >> Am I thinking about this in the wrong way? > > If each brick you used provides 100GB, then you have a total of 400GB. > Since you are using replication with 2 replicas, the gluster volume > will be half that size, 200GB. If you copy a 20GB file to this volume, > means 20GB of space on the volume is used, leaving 180GB on the > volume. But, of the total 400GB you had, you will be using up 40GB as > gluster will make a 2 copies of the file. > >> >> >> >> ________________________________ >> From: Lalatendu Mohanty <lmohanty at redhat.com> >> To: Jake G. <dj_dark_junglist at yahoo.com> >> Cc: "gluster-users at gluster.org" <gluster-users at gluster.org> >> Sent: Wednesday, September 25, 2013 3:10 PM >> Subject: Re: Explaination needed - Distributed Replicated >> volume >> >> On 09/25/2013 10:52 AM, Jake G. wrote: >> >> HI all, >> >> I have created a Distributed Replicated volume across 2 glusterfs servers. >> >> Type: Distributed-Replicate >> Status: Started >> Number of Bricks: 2 x 2 = 4 >> Transport-type: tcp >> Bricks: >> Brick1: glusterfs-01:/mnt/glusterfs-data/brick1 >> Brick2: glusterfs-02:/mnt/glusterfs-data/brick1 >> Brick3: glusterfs-01:/mnt/glusterfs-data/brick2 >> Brick4: glusterfs-02:/mnt/glusterfs-data/brick2 >> >> If each gluster server gives 100GB to the volume. What is the total size of >> the volume going to be? 200GB? >> >> The available size of the volume will be 200GB. Because you have a 2X2 >> replicated volume. This means you have 2 pair of replicas. Brick "Brick1: >> glusterfs-01:/mnt/glusterfs-data/brick1" and "Brick2: >> glusterfs-02:/mnt/glusterfs-data/brick1" are a replica pair and they are >> mirror copy of each other. Effectively you will get 100 GB from these two >> bricks . Similarly from the other pair you will get 100GB. Total available >> size will be 200GB >> >> Say I copy a 20GB file to the volume. what would my available size be? 180GB >> or 160GB? >> >> If you copy 20GB file, the available size would be 180GB. >> >> >> Is there a command to view available sizes, usage, etc.. perhaps? >> >> >> If you have mounted it on Linux "df" command should help you. >> >> I am a bit confused. Thank you! >> >> >> _______________________________________________ >> Gluster-users mailing list >> Gluster-users at gluster.org >> http://supercolony.gluster.org/mailman/listinfo/gluster-users >> >> >> >> >> >> _______________________________________________ >> Gluster-users mailing list >> Gluster-users at gluster.org >> http://supercolony.gluster.org/mailman/listinfo/gluster-users
