02 Ceph cluster planning and deployment of mimic

Reference connection:< https://docs.ceph.com/docs/master/ 2.1 cluster planning At least three Centos7 system virtual machines are used to deploy Ceph cluster. Hardware configuration: 2C4G. In addition, each machine should be equipped with at least three hard disks (5g for each disk) HOST IP Service Mark cephmanager01 public network:1 ...

Posted by BenInBlack on Tue, 30 Jun 2020 00:50:02 -0700

Detailed explanation of PG state of distributed storage Ceph

1. PG introduction This time, I'd like to share the detailed explanation of various states of PG in Ceph. PG is one of the most complex and difficult concepts. The complexity of PG is as follows: At the architecture level, PG is in the middle of the RADOS layer. a. Up is responsible for receiving and processing requests from clients. b. The ...

Posted by blackthunder on Thu, 07 May 2020 05:15:12 -0700

How to specify the use of CEPH fuse in k8s

Originally, I wanted to use CEPH fuse, but as a result, I always reported mount can't read super Block error, but I only installed the rpm package of CEPH fuse for the host. kublet is actually using the kernel mount mode to mount cephfs. This is a mistake that can't be repeated. But how to specify kubelet to use CEPH fuse to mount cephfs? I goo ...

Posted by wattsup88 on Sun, 26 Apr 2020 09:26:03 -0700

Perfect integration of Ceph and kubernetes

1. Ceph combined with volumes Objective: to achieve Ceph RBD and kubernetes volumes integration. 1.1 preparations 1. Creating pool s and users [root@node-1 ~]# ceph osd pool create kubernetes 8 8 2. Create an authenticated user [root@node-1 ~]# ceph auth get-or-create client.kubernetes mon 'profile rbd' osd 'profile rbd pool=kubernetes' [clie ...

Posted by Huntress on Tue, 21 Apr 2020 07:43:27 -0700

openstack+ceph Big Trial!Follow along!

Article Directory Preface First: The theoretical basis of CEPH 1.1: Overview 1.2: Related concepts 1.3: No central architecture at all 2: Deploy CEPH cluster 2.1: Deploying a CEPH environment 2.2: CEPH cluster building 2.3: CEPH Cluster Management Page Installation 3: docking between CEPH and ope ...

Posted by KevMull on Sun, 08 Mar 2020 18:23:40 -0700

ceph auth command collection

1. Post it first to help with the information auth add <entity> {<caps> [<caps>...]} add auth info for <entity> from input file, or random key if no input is given, and/or any caps specified in the command auth caps <entity> <c ...

Posted by israfel on Sun, 26 Jan 2020 18:23:45 -0800

Rancher, K8S Persistent Storage Ceph RBD Setup and Configuration

1. Configure host, install ntp (not required)2. Configure Secret-Free ssh3. Configure ceph, yum source vim /etc/yum.repo.d/ceph.cepo [ceph] name=ceph baseurl=http://mirrors.cloud.tencent.com/ceph/rpm-luminous/el7/x86_64/ gpgcheck=0 priority=1 [ceph-noarch] name=cephnoarch baseurl=http://mirrors.cloud.tencent.com/ceph/rpm-luminous/el7/noarch/ ...

Posted by sissy on Fri, 27 Dec 2019 17:10:58 -0800

Ceph block equipment introduction and installation configuration

1: rbd introduction A block is a sequence of bytes (for example, a 512 byte block of data). Block based storage interface is the most commonly used method to store data using rotating media (such as hard disk, CD, floppy disk or even traditional 9-track tape). The ubiquitous block device interface makes the virtual block device an ideal candi ...

Posted by lynosull on Thu, 19 Dec 2019 03:21:43 -0800

Introduction and Setup of Ceph(CephFS) File System

1: Introduction before installation A Ceph (CephFS) file system requires at least two RADOS pools, one for data and one for metadata. When configuring these pools, we should consider the following three points Use a higher level of replication for the metadata pool, because any data loss in this pool may render the entire file system inacces ...

Posted by renj0806 on Tue, 17 Dec 2019 18:20:04 -0800

CentOS7.6 enable Ceph nautilus's dashboard failure handling

[TOC] 1. Environmental description Software Edition operating system CentOS7.6 ceph nautilus, v14.2.4 The nautilus version of CEPH deploy is installed the same as the luminous version. Please refer to my previous article:https://blog.51cto.com/ygqygq2/2161917 2. Failed to enable ceph dashboard There is an error when the mgr module tu ...

Posted by dougp23 on Fri, 15 Nov 2019 09:49:29 -0800