cephCeph提供一個高可用對象存儲僅次于硬件的首選軟件定義

ceph12.2.2oncentos 2018/2/16 Ceph提供一個高可用對象，僅次于硬件的首選軟件定義OS:version:Ceph10.2.5vs#onallcephclusternode,ceph1-3clusternode; [root@ceph1~]#cat localhost localhost4 localhost localhost6 192.16830.112192.168.30.113192.168.30.114192.168.30.115ssh-copy-idceph1ssh-copy-idceph2ssh-copy-idceph3ssh-copy-idceph4[root@ceph1yum.repos.d]#catceph.reposcpceph.repoceph2:/etc/yum.repos.d/scpceph.repoceph3:/etc/yum.repos.d/scpceph.repoceph4:/etc/yum.repos.d/#ondeployyum-yinstallceph-deploy#onallceph-clusternodeforiin{1..3};dosshceph$iyum-yinstallceph;donemkdircephcdceph-deploynewceph1ceph2viosdpooldefaultsize=2osdjournalsize=2000monclockdriftallowed=2ceph-deploymoncreate-monclockdriftwarnbackoff=30monallowpooldelete=truepublicnetwork=192.168.20.0/24clusternetworkceph-deploymoncreate-#onallceph-clusterforiin{1..3};dosshceph$imkdirforiin{1..3};dosshceph$ichown-Rceph:cephceph-deployosdprepareceph1:/ceph1ceph2:/ceph2ceph3:/ceph3ceph-deployosdactivateceph1:/ceph1ceph2:/ceph2ceph3:/ceph3#onforiin{1..3};doceph-deploydiskzapceph$i:vdb;doneforiin{1..3};doceph-deployosdcreateceph$i:vdb;done#ondeploynodetransferconfigfilesceph-deployadminceph1ceph2ceph3od644ceph.#ondeploynodetransferconfigfilesto ceph-deployadminceph4#ceph12開始，monitor必須添加ceph-deploymgrcreate#啟用dashboard(在moncephmgrmoduleenabledashboard ss-anpt|grep7000#on cdod644ceph. 池:cephosdpoolcreate{pool-name}{pg-num}[{pgp-num}][replicated] 池:cephosdpooldelete{pool-name}[{pool-name}--yes-i-really-really-mean-it] 池:cephosdpoolrename{current-pool-name}{new-pool-name}cephosdpoolcreaterbd128128#默認創(chuàng)建replicatedcephosdpoolcreateliyang64erasure#創(chuàng)建ECpoolRBD塊設備;cephosdpoolsetrbdsize2#設置池的副本數(shù)systemctlrestartceph-mon.target#重啟ceph-mon服務會/etc/ceph/ceph.conf配置文件cephosdpooldeleteliyangliyang--yes-i-really-really-mean-it#刪除pool記得輸入兩次pool名稱cephosdpoolls{detail}#cephosdcephosdpoolapplicationenablerbdrbd#定義池的使用類型#創(chuàng)建塊設備鏡像命令是rbdcreatesizemegabytespool-name}/{image-name}，如果pool_name不指定，則默認的rbdcreatedisk1-s10G--image-featurerbdcreatedisk1-s10G--image-featurelayering-pliyangrbdinfodisk1rbdinfo顯示的RBD鏡像的format為2，F(xiàn)ormat2的RBD鏡像支持RBD分層，是實現(xiàn)Copy-On-Writecephosdcrushtunableshammer#解決問題：rbd:mapfailed:(5)Input/outputerror;butoncentos7.4rbdrmrbdrmdisk1-prbdls-l#viewrbddiskdetailrbdmapdisk1#rbdunmapdisk1rbdshowmappedrbdinfodisk1rbddudisk1mkfs.xfs/dev/rbd0mkdir/xxxmount/dev/rbd0#addmonnodefsid=3a8d1ea1-2f74-4af7-be61-f1026bf2be3f mon_host=192.168.20.7192.168.20.8192.168.20.9auth_cluster_required=cephxauth_service_required=cephxauth__required=cephxfilestore_xattr_use_omap=trueosd_pool_default_size=2ceph-deploy--overwrite-confmoncreateceph3ceph4cephmonstatcephdfcephosddfcephosdtreeceph-sceph-wcephauthlistcephquorum_statusrbdinfoimage_namecephpgstatcephosdlspools#deleteosdcephosdoutsystemctlstopceph-osd@1cephosdcrushremoveosd.1cephauthdelosd.1cephosdrmosd.1umount#restoreosdornewceph-deploydiskzapceph5