1. Since self-heal checks are done when establishing the FD and the client connects to all the servers in the volume simultaneously, high latency (mult-zone) replication is not normally advisable. (For the record DRBD hasn't ever eaten my data. GlusterFS is a scale-out network-attached storage file system. Glusterfs client must be installed on the clients who require access to the volume. I use and preach about Ceph. Lustre - - GlusterFS VS Lustre A type of parallel distributed file system, generally used for large-scale cluster computing. however as dyasny highlighted, drbd activs/active cfg is not advisable (not to mention the pain). Guess it would only support a certain type of database engine? metadata servers can be duplicated too, and can run on the same nodes as object store servers. Server Fault is a question and answer site for system and network administrators. The simplest setup with DRBD is a primary>secondary node setup. First of all we need to install repository package for install glusterfs-client package. on my lab I have 3 VM (in nested env) with ssd storage. And is certainly worth a look if it might fit your needs. ocfs2 a iscsi jsem opustil. IP address 10.0.0.5 for NW2 2… DRDB is not connected to any file system and simply mirrors block writes to other systems in an active-passive manner. Step 1./ Preparing Servers: – Configuring /etc/hosts – GlusterFS components use DNS for name resolutions, if you do not have a DNS on your environment then update /etc/hosts file on every server and ensure that the host names of each server are accordingly resolvable. One cool thing about GlusterFS is that it stores the actual whole files on regular local file systems. It clusters together storage building blocks over RDMA or TCP/IP, and aggregates disk and memory resources in order to manage data in a single global namespace. I need to build a solution to host internal git repositories. It’s the middle of 2017 and since Kubernetes has gained a lot of traction in Haufe-Lexware and other companies, it’s time to have a look at the available persistence layers for Kubernetes. LEAVE A REPLY Cancel reply. Kind Regards, Jerome Haynes . You're comparing apples to flamethrowers. In case the primary fails I manually promote the secondary to Primary and start the VM. Disclaimer I'm the puppet-gluster guy. Sehr zu unrecht: DRBD 9 verspricht eine große Zahl neuer Funktionen – und sticht verteilten Netzwerkspeicher aus, wenn es um geringe Latenzen geht. The problem you will have with Gluster is mainly latency between the nodes. GlusterFS is open source and part of Linux OS and it works well on Oracle's Cloud Infrastructure Services. 6: This is the Gluster volume name, preceded by /. Having said all this, I use both products, but for different things. It looked fine but when I started using it, my first Git clone on a GlusterFS mount point took so long that I had time to make coffee, drink a cup, and then drink a second one! DRBD has no precise knowledge of the file system and, as such, it has no way of communicating the changes upstream to the file system driver. After googling, there seem to be a few options, but not entirely sure about "best practices". Well, yes, I am comparing apples to oranges in a round about way because I wanted to know which was a preferred method of replication. Yes I have used xfs as filesystem in glusterfs configuration. GlusterFS is latency dependent. GlusterFS Installation and configuration on Client:-We can install glusterfs-client package to support the mounting of GlusterFS file systems. You are going to have to add on the functionality manually. Innovation – It eliminates the metadata and can dramtically improve the performance which will help us to unify data and objects. I've been using DRBD got a couple years now without problem however the lack of ability to access data on a secondary node or even adding more nodes in DRBD8 has been a pain. Storage. Im medialen Dauerfeuer um Ceph, GlusterFS & Co. gehen herkömmliche Lösungen wie DRBD bisweilen unter. Also you might want to try the built-in NFS server, which, talking from my experience, handles small files a little bit faster. Doesn't make sense to run gluster on a single machine unless you are future-proofing/plan to add more networked storage boxes in the future. Ceph vs GlusterFS vs MooseFS vs HDFS vs DRBD. I first installed GlusterFS across the ocean, with one server in France and another one in Canada. DRDB is a poor solution and was only used because they weren't better alternatives. Each lookup will query both sides of the replica. Edit /etc/drbd.conf (or global.conf and r0.res in /etc/drbd.d, depending on your distribution). If you want file level access, no need for a clustered file system (GFS2 sucks), POSIX access via FUSE potentially lower performance (in theory). Opt-in alpha test for a new Stacks editor, Visual design changes to the review queues, DRBD Madness on Virtual Environment (XEN), Storage replication/mirror for web application, Unexplicable GlusterFS load and poor performance. Just one thing I'd like to add, cluster didn't cope in my setup, but keep in mind it was a 2 nodes cluster. ocfs2 a iscsi jsem opustil. Introducing GlusterFS GlusterFS is a distributed file system that can scale up to several petabytes and can handle thousands of clients.