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Ceph分布式存储更换磁盘操作步骤
1、确认需要更换的磁盘对应的盘符、OSD ID ;
root@Ceph-B**A**-04-S2-60:~# df -h |grep 17
/dev/sdp3 1.1T 566G 551G 51% /var/lib/ceph/osd/ceph-17
2、确认磁盘对应的槽位;
root@Ceph-B**A**-04-S2-60:~# ll /dev/disk/by-path/ |grep sdp
lrwxrwxrwx 1 root root 9 Aug 17 19:17 pci-0000:02:00.0-scsi-0:0:18:0 -> ../../sdp
lrwxrwxrwx 1 root root 10 Aug 17 19:17 pci-0000:02:00.0-scsi-0:0:18:0-part1 -> ../../sdp1
lrwxrwxrwx 1 root root 10 Aug 17 19:17 pci-0000:02:00.0-scsi-0:0:18:0-part2 -> ../../sdp2
lrwxrwxrwx 1 root root 10 Aug 17 19:17 pci-0000:02:00.0-scsi-0:0:18:0-part3 -> ../../sdp3
3、确认主机SN;
root@Ceph-B**A**-04-S2-60:~# dmidecode -s system-serial-number
HVNHB**
4、设置OSD Flag;
ceph osd out 17
5、查看集群状态;
ceph -s
6、关闭对应的OSD进程;
stop cep-osd id=17
7、从CrshMap中移除OSD;
ceph osd crush remove osd.17
8、删除OSD认证信息;
ceph auth del osd.17
9、从集群中移除OSD;
ceph osd rm 17
10、卸载挂载点;
umount /var/lib/ceph/osd/ceph-17
11、更换新的磁盘。。。略;
12、格式化新磁盘;
ceph-deploy disk zap Ceph-B**A**-04-S2-60.domain.tld:sdp
13、创建OSD;
ceph-deploy osd create Ceph-B**A**-04-S2-60.domain.tld:sdp
14、调整CrushMap;
ceph osd crush add osd.17 1.17 root=sata pod=sata-pod-01 chassis=sata-chassis-01 host=Ceph-B**A**-04-S2-60-sata
15、优化挂载参数;
mount -o remount,nobarrier /var/lib/ceph/osd/ceph-17
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