[Gluster-users] Distributed-replicate across four bricks with two hosts
Hi, I created a distributed-replicated volume across two servers and two bricks each. Here is the configuration: Volume Name: slice1 Type: Distributed-Replicate Status: Started Number of Bricks: 2 x 2 = 4 Transport-type: tcp Bricks: Brick1: elkpinfkvm05-bus:/srv/brick1 Brick2: elkpinfkvm05-bus:/srv/brick2 Brick3: elkpinfkvm06-bus:/srv/brick1 Brick4: elkpinfkvm06-bus:/srv/brick2 So naturally the question comes up: how do I know the replication is happening across the hosts, not two bricks on the same host? If one of the hosts went down, I want to make sure the storage is still available. Thanks, Ziemowit ___ Gluster-users mailing list Gluster-users@gluster.org http://supercolony.gluster.org/mailman/listinfo/gluster-users
Re: [Gluster-users] Distributed-replicate across four bricks with two hosts
On Fri, Jun 14, 2013 at 4:35 PM, Ziemowit Pierzycki ziemo...@pierzycki.com wrote: Hi, I created a distributed-replicated volume across two servers and two bricks each. Here is the configuration: Volume Name: slice1 Type: Distributed-Replicate Status: Started Number of Bricks: 2 x 2 = 4 Transport-type: tcp Bricks: Brick1: elkpinfkvm05-bus:/srv/brick1 Brick2: elkpinfkvm05-bus:/srv/brick2 Brick3: elkpinfkvm06-bus:/srv/brick1 Brick4: elkpinfkvm06-bus:/srv/brick2 So naturally the question comes up: how do I know the replication is happening across the hosts, not two bricks on the same host? If one of the hosts went down, I want to make sure the storage is still available. Thanks, Test it of course by taking down different nodes! Ziemowit ___ Gluster-users mailing list Gluster-users@gluster.org http://supercolony.gluster.org/mailman/listinfo/gluster-users ___ Gluster-users mailing list Gluster-users@gluster.org http://supercolony.gluster.org/mailman/listinfo/gluster-users
Re: [Gluster-users] Distributed-replicate across four bricks with two hosts
On 06/14/13 13:35, Ziemowit Pierzycki wrote: Hi, I created a distributed-replicated volume across two servers and two bricks each. Here is the configuration: Volume Name: slice1 Type: Distributed-Replicate Status: Started Number of Bricks: 2 x 2 = 4 Transport-type: tcp Bricks: Brick1: elkpinfkvm05-bus:/srv/brick1 Brick2: elkpinfkvm05-bus:/srv/brick2 Brick3: elkpinfkvm06-bus:/srv/brick1 Brick4: elkpinfkvm06-bus:/srv/brick2 So naturally the question comes up: how do I know the replication is happening across the hosts, not two bricks on the same host? If one of the hosts went down, I want to make sure the storage is still available. Replica sets are done in order that the bricks are added to the volume. So, you have the replica set size set to 2, which means every 2 bricks are mirrored, down the line. Brick1 + Brick2 = Replica 1 Brick3 + Brick4 = Replica 2 Then the distribution (DHT) distributes files over Replica 1 and Replica 2. So, you have an issue here, that both bricks of a replica set are on the same host. -- Mr. Flibble King of the Potato People ___ Gluster-users mailing list Gluster-users@gluster.org http://supercolony.gluster.org/mailman/listinfo/gluster-users
