I think you should try with a bigger file.1,10,100,1000KB? Small files might just being replicated to bricks...(Just a guess..) On Fri, Nov 25, 2016 at 12:41 PM, Alexandre Blanca <alexandre.blanca@xxxxxxxx> wrote: > Hi, > > I am a beginner in distributed file systems and I currently work on > Glusterfs. > I work with 4 VM : srv1, srv2, srv3 and cli1 > I tested several types of volume (distributed, replicated, striped ...) > which are for me JBOD, RAID 1 and RAID 0. > When I try to make a dispersed volume (raid5 / 6) I have a misunderstanding > ... > > > gluster volume create gv7 disperse-data 3 redundancy 1 > ipserver1:/data/brick1/gv7 ipserver2:/data/brick1/gv7 > ipserver3:/data/brick1/gv7 ipserver4:/data/brick1/gv7 > > > gluster volume info > > > Volume Name: gv7 > Type: Disperse > Status: Created > Number of Bricks: 4 > Transport-type: tcp > Bricks: > Brick1: ipserver1:/data/brick1/gv7 > Brick2: ipserver2:/data/brick1/gv7 > Brick3: ipserver3:/data/brick1/gv7 > Brick4: ipserver4:/data/brick1/gv7 > > gluster volume start gv7 > > > mkdir /home/cli1/gv7_dispersed_directory > > > mount -t glusterfs ipserver1:/gv7 /home/cli1/gv7_dispersed_directory > > > > Now, when i create a file on my moint point (gv7_dispersed_directory) : > > > cd /home/cli1/gv7_dispersed_directory > > > echo 'hello world !' >> test_file > > > I can see in my srv1 : > > > cd /data/brick1/gv7 > > > cat test > > > hello world ! > > > in my srv2 : > > > > cd /data/brick1/gv7 > > > > cat test > > > > hello world ! > > > in my srv4: > > > > cd /data/brick1/gv7 > > > > cat test > > > > hello world ! > > > but in my srv3 : > > > > cd /data/brick1/gv7 > > > > cat test > > > > hello world ! > > hello world ! > > > Why?! output of server 3 displays 2 times hello world ! Parity? Redundancy? > I don't know... > > Best regards > > Alex > > > > > > > > _______________________________________________ > Gluster-users mailing list > Gluster-users@xxxxxxxxxxx > http://www.gluster.org/mailman/listinfo/gluster-users _______________________________________________ Gluster-users mailing list Gluster-users@xxxxxxxxxxx http://www.gluster.org/mailman/listinfo/gluster-users
