这篇文章主要介绍“Ceph手动添加osd的步骤”，在日常操作中，相信很多人在Ceph手动添加osd的步骤问题上存在疑惑，小编查阅了各式资料，整理出简单好用的操作方法，希望对大家解答”Ceph手动添加osd的步骤”的疑惑有所帮助！接下来，请跟着小编一起来学习吧！
1、Ceph版本
ceph手动添加osd的过程，其实就是ceph-deploy的过程自己手动执行了一遍
# ceph version
ceph version 12.2.7 (3ec878d1e53e1aeb47a9f619c49d9e7c0aa384d5) luminous (stable)
2、磁盘分区
bluestore存储方式，data是以前的journal（vdc1），block(vdc2)才是实际数据存储
2.1、划分ceph data
# uuidgen
ff3db0d3-fd32-4b2d-8c35-1fb074e00cea
# sgdisk --new=1:0:+100M --change-name=1:"ceph data" --partition-guid=1:ff3db0d3-fd32-4b2d-8c35-1fb074e00cea --typecode=1:89c57f98-2fe5-4dc0-89c1-f3ad0ceff2be --mbrtogpt -- /dev/vdc
The operation has completed successfully.
# /usr/bin/udevadm settle --timeout=600
# /usr/bin/flock -s /dev/vdc /usr/sbin/partprobe /dev/vdc
# /usr/bin/udevadm settle --timeout=600
2.2、划分ceph block
# uuidgen
a44651fb-8904-4a86-adf6-541fefdf229e
# sgdisk --largest-new=2 --change-name=2:"ceph block" --partition-guid=2:a44651fb-8904-4a86-adf6-541fefdf229e --typecode=2:cafecafe-9b03-4f30-b4c6-b4b80ceff106 --mbrtogpt -- /dev/vdc
The operation has completed successfully.
# /usr/bin/udevadm settle --timeout=600
# /usr/bin/flock -s /dev/vdc /usr/sbin/partprobe /dev/vdc
# /usr/bin/udevadm settle --timeout=600
2.3、查看分区情况
# ls -lrt /dev/disk/by-partuuid/|grep vdc
a44651fb-8904-4a86-adf6-541fefdf229e -> ../../vdc2
lrwxrwxrwx 1 root root 10 Jul 12 16:37
ff3db0d3-fd32-4b2d-8c35-1fb074e00cea -> ../../vdc1
3、格式化/dev/vdc1为xfs
# sgdisk --typecode=2:cafecafe-9b03-4f30-b4c6-b4b80ceff106 -- /dev/vdc
The operation has completed successfully.
# udevadm settle --timeout=600
# flock -s /dev/vdc /usr/sbin/partprobe /dev/vdc
# udevadm settle --timeout=600
# mkfs -t xfs -f -i size=2048 -- /dev/vdc1
meta-data=/dev/vdc1 isize=2048 agcount=4, agsize=6400 blks
= sectsz=512 attr=2, projid32bit=1
= crc=1 finobt=0, sparse=0
data = bsize=4096 blocks=25600, imaxpct=25
= sunit=0 swidth=0 blks
naming =version 2 bsize=4096 ascii-ci=0 ftype=1
log =internal log bsize=4096 blocks=864, version=2
= sectsz=512 sunit=0 blks, lazy-count=1
realtime =none extsz=4096 blocks=0, rtextents=0
4、挂载临时目录(vdc1)
# mkdir /var/lib/ceph/tmp/mnt.DlWdC2
# mount -t xfs -o noatime,inode64 -- /dev/vdc1 /var/lib/ceph/tmp/mnt.DlWdC2
# fsid=$(ceph-osd --cluster=ceph --show-config-value=fsid)
# cat << EOF > /var/lib/ceph/tmp/mnt.DlWdC2/ceph_fsid
> $fsid
> EOF
# echo "ff3db0d3-fd32-4b2d-8c35-1fb074e00cea" >> /var/lib/ceph/tmp/mnt.DlWdC2/fsid
# restorecon -R /var/lib/ceph/tmp/mnt.DlWdC2/magic
# cat << EOF > /var/lib/ceph/tmp/mnt.DlWdC2/block_uuid
> a44651fb-8904-4a86-adf6-541fefdf229e
> EOF
5、建立block软链接(vdc2)
# ln -s /dev/disk/by-partuuid/a44651fb-8904-4a86-adf6-541fefdf229e /var/lib/ceph/tmp/mnt.DlWdC2/block
# echo bluestore >> /var/lib/ceph/tmp/mnt.DlWdC2/type
# /usr/sbin/restorecon -R /var/lib/ceph/tmp/mnt.DlWdC2/
# /usr/bin/chown -R ceph:ceph /var/lib/ceph/tmp/mnt.DlWdC2/
# umount /var/lib/ceph/tmp/mnt.DlWdC2/
# sgdisk --typecode=1:4fbd7e29-9d25-41b8-afd0-062c0ceff05d -- /dev/vdc
Warning: The kernel is still using the old partition table.
The new table will be used at the next reboot.
The operation has completed successfully.
6、启动osd
udev来实现了osd的自动挂载
# /usr/bin/udevadm settle --timeout=600
# /usr/bin/flock -s /dev/vdc /usr/sbin/partprobe /dev/vdc
# /usr/bin/udevadm settle --timeout=600
# /usr/bin/udevadm trigger --action=add --sysname-match vdc1
7、osd目录文件说明
# cd /var/lib/ceph/osd/ceph-4/
# ls -lrt
total 52
-rw-r--r-- 1 ceph ceph 37 Jul 12 16:43 ceph_fsid
-rw-r--r-- 1 ceph ceph 37 Jul 12 16:47 fsid
-rw-r--r-- 1 ceph ceph 21 Jul 12 16:47 magic
-rw-r--r-- 1 ceph ceph 37 Jul 12 16:49 block_uuid
lrwxrwxrwx 1 ceph ceph 58 Jul 12 16:50 block -> /dev/disk/by-partuuid/a44651fb-8904-4a86-adf6-541fefdf229e
-rw-r--r-- 1 ceph ceph 10 Jul 12 16:51 type
-rw------- 1 ceph ceph 56 Jul 12 16:57 keyring
-rw-r--r-- 1 ceph ceph 2 Jul 12 16:57 whoami
-rw-r--r-- 1 root root 384 Jul 12 16:57 activate.monmap
-rw-r--r-- 1 ceph ceph 8 Jul 12 16:57 kv_backend
-rw-r--r-- 1 ceph ceph 2 Jul 12 16:57 bluefs
-rw-r--r-- 1 ceph ceph 4 Jul 12 16:57 mkfs_done
-rw-r--r-- 1 ceph ceph 6 Jul 12 16:57 ready
-rw-r--r-- 1 ceph ceph 3 Jul 12 16:57 active
-rw-r--r-- 1 ceph ceph 0 Jul 12 16:57 systemd
ceph_fsid -- ceph集群的fsid
fsid -- osd的fsid，也是/dev/vdc1的盘符id
magic -- ceph osd volume v026
block_uuid -- /dev/vdc2的盘符id
block -- 软链接，指向/dev/vdc2的盘符
type -- ceph存储类型，这里为bluestore
keyring -- osd的秘钥
whoami -- osd的序号
activate.monmap -- 活跃的monmap
kv_backend -- 值为rocksdb
bluefs -- 值为1
mkfs_done -- 值为yes
ready -- 值为ready
active -- 值为ok
systemd -- 空文件
到此，关于“Ceph手动添加osd的步骤”的学习就结束了，希望能够解决大家的疑惑。理论与实践的搭配能更好的帮助大家学习，快去试试吧！若想继续学习更多相关知识，请继续关注天达云网站，小编会继续努力为大家带来更多实用的文章！