CEPH换盘

Filestore类型OSD的换盘操作：

1、umount坏盘目录

umount /var/lib/ceph/osd/ceph-176

2、通过MegaCli创建Riad0硬盘

MegaCli64 -CfgLdAdd -r0 [32:3] WT RA Direct -a0

3、对磁盘分区

parted /dev/sdj "mklabel gpt"
parted /dev/sdj "mkpart primary 1 -1"

4、格式化硬盘并挂载到OSD目录

mkfs.xfs -m uuid=“$(ceph osd dump |grep osd.176 |awk ‘{print $NF}')” /dev/sdj1
mount /dev/sdj1 /var/lib/ceph/osd/ceph-176

5、恢复fsid和journal

cd /var/lib/ceph/osd/ceph-176
echo “$(blkid -o export /dev/sdj1 |grep -i ^uuid |awk -F= ‘{print $2}’)” > fsid
ln -sf /dev/disk/ceph/by-uuid/[journal_id] journal

6、初始化OSD数据目录

dd if=/dev/zero of=/dev/sdo3 bs=100M count=1
ceph-osd -i 176 —mkfs
chown -R ceph:ceph /var/lib/ceph/osd/ceph-176

7、启动OSD并加入集群

systemctl start ceph-osd@176
ceph osd in 176

Bluestore类型OSD的换盘操作：

1、删除OSD目录下ready和mkfs_done文件

cd /var/lib/ceph/osd/ceph-1/
rm -f mkfs_done ready

2、通过MegaCli创建Riad0硬盘

MegaCli64 -CfgLdAdd -r0 [32:3] WT RA Direct -a0

3、生成OSD block链接

cd /dev/disk/ceph/by-uuid/
ln -sf /dev/sde d93d1c35-ee59-4b64-a339-8d00915a08df

4、初始化OSD目录

ceph-osd -i 1 —mkfs
chown ceph:ceph -R /var/lib/ceph/osd/ceph-1
systemctl start ceph-osd\@1