ceph storage cluster

Tags: centos cephBrief IntroductionThe deployment mode of Ceph mainly includes the following types of nodes:? Ceph OSDs: A Ceph OSD process is mainly used to store data, process data replication, recovery, and fill, adjust the resource combination and provide some monitoring information to Ceph Monitors by checking the

Learn about Ceph, an open source distributed storage system that enhances your OpenStack environment Ceph is an open-source, distributed storage System that complies with POSIX (Portable operating system for UNIX) and runs under the GNU general Public License. Originally developed by Sage Weill in 2007, the project wa

solved, but still did not succeed, so simply changed the node , do not use this node. This can be done on its own by the other nodes as a Mon node to try, if the other node succeeds on the node is not successful, it must be down, with ceph-s view of the cluster state can also see it down. (3) failed to connect to host:e1092,e1093, e1094 See warnin information, found that: no Mon key found in host:e1092

tool for unified installation:# Rpm-Uvh http://ceph.com/rpm-hammer/el7/noarch/ceph-release-1-1.el7.noarch.rpm# Yum update-y# Yum install ceps-deploy-yCreate a ceph working directory and perform subsequent operations under this directory:# Mkdir ~ /Ceph-cluster# Cd ~ /Ceph-c

/leadorceph/my-cluster directory. OSD service for adding mdsnode nodes ssh node1 sudo mkdir /var/local/osd2 exit Use the ceph-deploy command to create osd. ceph-deploy --overwrite-conf osd prepare mdsnode:/var/local/osd2 Activate the created osd ceph-deploy osd activate mdsnode:/var/local/osd

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

Official Document: http://docs.ceph.com/docs/master/start/quick-start-preflight/Chinese version: http://docs.openfans.org/ceph/Principle: Using the Ceph-deploy tool, through the management node Admin-node, using the SSH channel, in order to achieve the control of each distributed node storage sharing function.650) this.width=650; "Src=" http://docs.ceph.com/docs/

Ceph 可以提供PB级别的存储空间（PB-->TB-->-->GB） 软件定义存储（Software Defined Storage）作为存储，行业的一大发展趋势 官网：http://docs.ceph.org/start/introCeph components OSDs ：存储设备 Monitors ：集群监控组件 MDSs ：存放文件系统的元数据（对象存储和块存储不需要该组件） 元数据：文件的信息，大小，权限等，即如下信息 drwxr-xr-x 2 root root 6 10月 11 10:37 /root/a.sh Client ：ceph客户端Experiment:Use NODE51 as the deplo

objects based on the cluster map. This map is replicated to all nodes (the storage and client nodes) and is updated by the lazy propagation increments.By providing storage nodes with complete data distribution information in the system, the device is able to self-manage data replication, consistent and secure process updates, participate in error detection, resp

Solution to Ceph cluster disk with no available spaceFault description During use of the OpenStack + Ceph cluster, because the Virtual Machine crashes into a large amount of new data, the cluster disk is quickly consumed, there is no free space, the virtual machine cannot op

1,Ceph-deploy OSD Prepare ' hostname ':/data1:/dev/sdb1Ceph-deploy OSD Prepare ' hostname ':/DATA2:/DEV/SDC1Ceph-deploy OSD Prepare ' hostname ':/data3:/dev/sdd1Ceph-deploy OSD Prepare ' hostname ':/data4:/dev/sde1Ceph-deploy OSD Prepare ' hostname ':/data5:/dev/sdf1Ceph-deploy OSD Prepare ' hostname ':/DATA6:/DEV/SDG1Ceph-deploy OSD Prepare ' hostname ':/data7:/dev/sdh1Ceph-deploy OSD Prepare ' hostname ':/data8:/dev/sdi1Ceph-deploy OSD Prepare ' hos

192.168.40.148 Osdnode2 OSD node, MON Node 192.168.40.125 Osdnode3 OSD Node Extend the OSD function of the MON node to switch to the leadorceph user on dataprovider and enter the/home/leadorceph/my-cluster directory. OSD service for adding mdsnode nodes ssh node1 sudo mkdir /var/local/osd2 exit Use the ceph-deploy command to create osd.

protected] ~]# umount/var/lib/ceph/osd/ceph-113. Remove MDS1. Directly close the MDS process for this node[[email protected] ~]#/etc/init.d/ceph stop MDS= = = Mds.bgw-os-node153 = =Stopping Ceph mds.bgw-os-node153 on Bgw-os-node153...kill 4981...done[Email protected] ~]#2. Remove this MDS certification[Email protected

Ceph Cluster report Monitor clock skew detected error troubleshooting, resolvingThe alarm information is as follows:[Email protected] ceph]# ceph-wCluster ddc1b10b-6d1a-4ef9-8a01-d561512f3c1dHealth Health_warnClock skew detected on mon.ceph-100-81, mon.ceph-100-82Monitor Clock Skew detectedMonmap E1:3 Mons at {

In planning the CEPH distributed storage cluster environment, the choice of hardware is very important, this is related to the performance of the entire Ceph cluster, the following comb to some of the hardware selection criteria, for reference:1) CPU SelectionCeph metadata s

Note: All operations below are performed at the admin node1, prepare three virtual machines, one as the admin node, the other two as the OSD node, and corresponding with the hostname command to modify the hostname to ADMIN,OSD0,OSD1, and finally modify the/etc/hosts file as shown below127.0.0.1 localhost10.10.102.85 admin10.10.102.86 osd010.10.102.87 OSD12. Configure password-free accessSsh-keygen //press ENTER to generate a public key to Ssh-copy-id-i/root/.ssh/id_rsa.pub

1. Description of the problem after doing the iptables strategy today and restarting one of the machines in the cluster, the input ceph-s discovers the following conditions: [[email protected] ~]# ceph-s2015-09-10 13:50:57.688516 7f6a6b8cc700 0 monclient (Hunting): Authenticate timed out AF ter 3002015-09-10 13:50:57.688553 7f6a6b8cc700 0 librados:client.admin

I. OverviewCephfs is a CEpH cluster-based file system that is compatible with POSIX standards.When creating a cephfs file system, you must add the MDS service to the CEpH cluster. This service processes the metadata part in the POSIX file system, and the actual data part is processed by the osds in the