cephadm RBD塊裝置
阿新 • • 發佈:2021-12-10
一 工作目錄
root@cephadm-deploy:~# cephadm shell
Inferring fsid 0888a64c-57e6-11ec-ad21-fbe9db6e2e74
Using recent ceph image quay.io/ceph/ceph@sha256:bb6a71f7f481985f6d3b358e3b9ef64c6755b3db5aa53198e0aac38be5c8ae54
root@cephadm-deploy:/# mkdir ceph
root@cephadm-deploy:/# cd ceph/
root@cephadm-deploy:/ceph#
二 儲存池
2.1 建立儲存池
root@cephadm-deploy:/ceph# ceph osd pool create wgsrbd 64 64
pool 'wgsrbd' created
2.2 檢視儲存池
root@cephadm-deploy:/ceph# ceph osd pool ls |grep wgsrbd
wgsrbd
2.3 啟用儲存池
root@cephadm-deploy:/ceph# ceph osd pool application enable wgsrbd rbd
enabled application 'rbd' on pool 'wgsrbd'
2.4 初始化儲存池
root@cephadm-deploy:/ceph# rbd pool init -p wgsrbd
三 rbd映象
3.1 建立映象
root@cephadm-deploy:/ceph# rbd create wgs-img01 --size 3G --pool wgsrbd --image-format 2 --image-feature layering
3.2 檢視映象資訊
rroot@cephadm-deploy:/ceph# rbd ls --pool wgsrbd -l --format json --pretty-format [ { "image": "wgs-img01", "id": "1e604ed5c5f19", "size": 3221225472, "format": 2 } ]
3.3 檢視映象特性
root@cephadm-deploy:/ceph# rbd --image wgs-img01 -p wgsrbd info
rbd image 'wgs-img01':
size 3 GiB in 768 objects
order 22 (4 MiB objects)
snapshot_count: 0
id: 1e604ed5c5f19
block_name_prefix: rbd_data.1e604ed5c5f19
format: 2
features: layering
op_features:
flags:
create_timestamp: Fri Dec 10 02:24:57 2021
access_timestamp: Fri Dec 10 02:24:57 2021
modify_timestamp: Fri Dec 10 02:24:57 2021
四 RBD使用者
4.1 建立rbd使用者
root@cephadm-deploy:/ceph# ceph auth add client.wgsrbd mon 'allow r' osd 'allow rwx pool=wgsrbd'
added key for client.wgsrbd
4.2 驗證rbd使用者資訊
root@cephadm-deploy:/ceph# ceph auth get client.wgsrbd
[client.wgsrbd]
key = AQDUvLJhXTxNGxAAhYKUR84if5s97cjiE0iFbQ==
caps mon = "allow r"
caps osd = "allow rwx pool=wgsrbd"
exported keyring for client.wgsrbd
4.3建立rbd使用者keyring檔案
root@cephadm-deploy:/ceph# ceph-authtool --create-keyring ceph.client.wgsrbd.keyring
creating ceph.client.wgsrbd.keyring
4.4匯出rbd使用者keyring
root@cephadm-deploy:/ceph# ceph auth get client.wgsrbd -o ceph.client.wgsrbd.keyring
exported keyring for client.wgsrbd
4.5 驗證rbd使用者keyring
root@cephadm-deploy:/ceph# cat ceph.client.wgsrbd.keyring
[client.wgsrbd]
key = AQDUvLJhXTxNGxAAhYKUR84if5s97cjiE0iFbQ==
caps mon = "allow r"
caps osd = "allow rwx pool=wgsrbd"
4.6 分發rbd使用者keyring
root@cephadm-deploy:/ceph# scp ceph.client.wgsrbd.keyring root@ceph-client01:/etc/ceph
五 配置客戶端
5.1 安裝ceph-common
root@ceph-client01:~# apt -y install nfs-common
5.2 驗證客戶端許可權
root@ceph-client01:~# ceph --id wgsrbd -s cluster: id: 0888a64c-57e6-11ec-ad21-fbe9db6e2e74 health: HEALTH_OK
services:
mon: 5 daemons, quorum cephadm-deploy,ceph-node01,ceph-node02,ceph-node03,ceph-node04 (age 45m)
mgr: cephadm-deploy.jgiulj(active, since 46m), standbys: ceph-node01.anwvfy
mds: 1/1 daemons up, 2 standby
osd: 15 osds: 15 up (since 45m), 15 in (since 37h)
rgw: 6 daemons active (3 hosts, 1 zones)
rgw-nfs: 2 daemons active (2 hosts, 1 zones)data:
volumes: 1/1 healthy
pools: 11 pools, 305 pgs
objects: 279 objects, 5.7 MiB
usage: 491 MiB used, 299 GiB / 300 GiB avail
pgs: 305 active+clean
5.3 客戶端對映rbd映象
root@ceph-client01:~# rbd --id wgsrbd -p wgsrbd map wgs-img01
/dev/rbd0
5.4 驗證對映映象
root@ceph-client01:~# rbd showmapped
id pool namespace image snap device
0 wgsrbd wgs-img01 - /dev/rbd0
5.5 格式化rbd映象
ceph叢集rbd裝置建立後需要格式化一次後才可以掛載。
root@ceph-client01:~# mkfs.xfs /dev/rbd0
meta-data=/dev/rbd0 isize=512 agcount=8, agsize=98304 blks
= sectsz=512 attr=2, projid32bit=1
= crc=1 finobt=1, sparse=1, rmapbt=0
= reflink=1
data = bsize=4096 blocks=786432, imaxpct=25
= sunit=16 swidth=16 blks
naming =version 2 bsize=4096 ascii-ci=0, ftype=1
log =internal log bsize=4096 blocks=2560, version=2
= sectsz=512 sunit=16 blks, lazy-count=1
realtime =none extsz=4096 blocks=0, rtextents=0
5.6 客戶端掛載rbd
5.6.1 建立掛載點
root@ceph-client01:~# mkdir -pv /data/rbd_data
mkdir: created directory '/data/rbd_data'
5.6.2 掛載rbd
root@ceph-client01:~# mount /dev/rbd0 /data/rbd_data/
5.7 驗證掛載
root@ceph-client01:~# df -TH
Filesystem Type Size Used Avail Use% Mounted on
udev devtmpfs 982M 0 982M 0% /dev
tmpfs tmpfs 206M 2.0M 204M 1% /run
/dev/mapper/ubuntu--vg-ubuntu--lv ext4 20G 11G 8.9G 54% /
tmpfs tmpfs 1.1G 0 1.1G 0% /dev/shm
tmpfs tmpfs 5.3M 0 5.3M 0% /run/lock
tmpfs tmpfs 1.1G 0 1.1G 0% /sys/fs/cgroup
/dev/rbd0 xfs 3.3G 57M 3.2G 2% /data/rbd_data
5.8 開機自動掛載rbd
root@ceph-client01:~# cat /etc/rc.d/rc.local
rbd --user wgsrbd -p wgsrbd map wgs-img01
mount /dev/rbd0 /data/rbd-data
5.9 解除安裝rbd
root@ceph-client01:~# umount /data/rbd_data
5.10 取消rbd對映
root@ceph-client01:~# rbd --user wgsrbd -p wgsrbd unmap wgs-img01
5.11 檢視當前rbd對映
root@ceph-client01:~# rbd showmapped