ceph hardware

Ceph provides three storage methods: Object Storage, block storage, and file system. The following figure shows the architecture of the Ceph storage cluster:We are mainly concerned about block storage. In the second half of the year, we will gradually transition the virtual machine backend storage from SAN to Ceph. although it is still version 0.94,

First, pre-installation preparation 1.1 Introduction to installation Environment It is recommended to install a Ceph-deploy management node and a three-node Ceph storage cluster to learn ceph, as shown in the figure. I installed the Ceph-deploy on the Node1. First three machines were prepared, the names of which wer

Document directory 1. Design a CEpH Cluster 3. Configure the CEpH Cluster 4. Enable CEpH to work 5. Problems Encountered during setup Appendix 1 modify hostname Appendix 2 password-less SSH access CEpH is a relatively new Distributed File System completed by the USSC storage team. It is a Network File System

Deployment Installation Regarding the installation ceph the whole process encounters the question, as well as the reliable solution, the personal test is effective, does not represent the general colleague's viewpoint.I am using the server, so I did not engage in any user issues. The machine is centOS7.3. The Ceph version I installed is jewel and currently uses only 3 nodes.Node IP naming role10.0.1.92 e10

in Docker!PrincipleIt is a controversial topic to run Ceph in Docker, and many people question the meaning of such operations. While the detection module, metadata server, and Rados gateway are not much of a problem to containerized, things can become tricky for the OSD (Object Storage daemon). The Ceph OSD is optimized for physical machines and has many associations with the underlying

This is a creation in Article, where the information may have evolved or changed. In the article "using Ceph RBD to provide storage volumes for kubernetes clusters," we learned that one step in the integration process for kubernetes and Ceph is to manually create the RBD image below the Ceph OSD pool. We need to find a way to remove this manual step. The first th

: Ceph Monitor maintains the cluster map status, including monitor map, OSD map, Placement Group (PG) map, and CRUSH map. ceph maintains Ceph Monitors, Ceph OSD Daemons, and historical records of PGs status changes (called an "epoch "). ? MDSs: Metadata Stored by Ceph Metada

Pre-Preparation:Planning: 8 MachinesIP hostname Role192.168.2.20 Mon Mon.mon192.168.2.21 OSD1 OSD.0,MON.OSD1192.168.2.22 osd2 osd.1,mds.b (Standby)192.168.2.23 OSD3 Osd.2192.168.2.24 OSD4 Osd.3192.168.2.27 Client Mds.a,mon.client192.168.2.28 OSD5 Osd.4192.168.2.29 Osd6 Osd.5Turn off SELINUX[Root@admin ceph]# sed-i ' s/selinux=enforcing/selinux=disabled/g '/etc/selinux/config[Root@admin ceph]# Setenforce 0Op

Ceph Client:Most ceph users do not store objects directly into the Ceph storage cluster, and they typically choose one or more of the Ceph block devices, the Ceph file system, and the Ceph object storage;Block device:To practice t

Ceph monitoring Ceph-dash Installation There are a lot of Ceph monitors, such as calamari or inkscope. When I started to try to install these, they all failed, and then Ceph-dash came into my eyes, according to the official description of Ceph-dash, I personally think it is

Today, Ceph is configured, referencing the official document address of the multiparty document http://docs.ceph.com/docs/master/rados/configuration/ceph-conf/#the-configuration-file Other great God's blog address http://my.oschina.net/oscfox/blog/217798 Http://www.kissthink.com/archive/c-e-p-h-2.html and so on a case of a. Overall on the single-node configuration did not encounter any air crashes, but mult

, so as to simplify deployment and O M while meeting the needs of different applications. In Ceph systems, "distributed" means that the system has a truly decentralized structure and has no theoretical limit for scalability. The first three articles are about the background. Starting from the fourth article, Zhang Yu introduced the Ceph structure. The core of Ceph