Dear Serkan, thank you very much for your support and explanation. I really appreciated the information you provided. Regards, Mauro > Il giorno 20 set 2017, alle ore 08:26, Serkan Çoban <cobanserkan@xxxxxxxxx> ha scritto: > > If you add bricks to existing volume one host could be down in each > three host group, If you recreate the volume with one brick on each > host, then two random hosts can be tolerated. > Assume s1,s2,s3 are current servers and you add s4,s5,s6 and extend > volume. If any two servers in each group goes down you loose data. If > you chose random two host the probability you loose data will be %20 > in this case. > If you recreate volume with s1,s2,s3,s4,s5,s6 with one brick on each > host any random two servers can go down. If you chose random two host > the probability you loose data will be %0 in this case. > > On Mon, Sep 18, 2017 at 10:39 PM, Mauro Tridici <mauro.tridici@xxxxxxx> wrote: >> Dear All, >> >> I just implemented a (6x(4+2)) DISTRIBUTED DISPERSED gluster (v.3.10) volume based on the following hardware: >> >> - 3 gluster servers (each server with 2 CPU 10 cores, 64GB RAM, 12 hard disk SAS 12Gb/s, 10GbE storage network) >> >> Now, we need to add 3 new servers with the same hardware configuration respecting the current volume topology. >> If I'm right, we will obtain a DITRIBUTED DISPERSED gluster volume with 12 subvolumes, each volume will contain (4+2) bricks, that is a [12x(4+2)] volume. >> >> My question is: in the current volume configuration, only 2 bricks per subvolume or one host could be down without losing data. What it will happen in the next configuration? How many hosts could be down without losing data? >> >> Thank you very much. >> Mauro Tridici >> >> _______________________________________________ >> Gluster-users mailing list >> Gluster-users@xxxxxxxxxxx >> http://lists.gluster.org/mailman/listinfo/gluster-users _______________________________________________ Gluster-users mailing list Gluster-users@xxxxxxxxxxx http://lists.gluster.org/mailman/listinfo/gluster-users
