创建存储池（增）
创建纠删码存储池
root@pc-amd64-100247:~# ceph osd dump | grep ensure root@pc-amd64-100247:~# ceph osd erasure-code-profile set my-ec-testing rulesetfailure-domain=osd k=3 m=2 root@pc-amd64-100247:~# ceph osd erasure-code-profile ls default my-ec-testing root@pc-amd64-100247:~# ceph osd pool create synology-nas-testing 16 16 erasure my-ec-testing pool 'synology-nas-testing' created
删除存储池（删）
允许删除：
# ceph config set global mon_allow_pool_delete true # ceph osd pool delete 'pool name' 'pool name' --yes-i-really-really-mean-it // -------------------------------------------------------- // 或仅修改特定存储池，开启防止删除保护 # ceph osd pool get rbd nodelete nodelete: false # ceph osd pool set rbd nodelete 1 set pool 11 nodelete to 1 # ceph osd pool delete rbd rbd --yes-i-really-really-mean-it Error EPERM: pool deletion is disabled; you must unset nodelete flag for the pool first
修改存储池（改）
修改 PG 数量
# ceph osd pool set cephfs_data pg_num 32 set pool 1 pg_num to 32
缩小副本数
[SOLVED] – change num-replicas on ceph rool online? | Proxmox Support Forum
ceph osd pool set POOL_NAME size 3 ceph osd pool set POOL_NAME min_size 2 // 缩小到 1 个副本 # ceph config set global mon_allow_pool_size_one true # ceph osd pool set data_pool min_size 1 # ceph osd pool set data_pool size 1 --yes-i-really-mean-it
修改存储池的 CRUSH Rule
# ceph osd pool get rbd crush_rule crush_rule: replicated_rule # ceph osd map rbd testfile osdmap e614 pool 'rbd' (11) object 'testfile' -> pg 11.551a2b36 (11.6) -> up ([1,3], p1) acting ([1,3,2], p1) # ceph osd pool set rbd crush_rule ssd-first set pool 11 crush_rule to ssd-first # ceph osd map rbd testfile // 当再次查看时，文件所属 PG 的 OSD Set 已发生变化 osdmap e625 pool 'rbd' (11) object 'testfile' -> pg 11.551a2b36 (11.36) -> up ([2,1,3], p2) acting ([2,1,3], p2)
查看存储池（查）
查看 Pool 列表
# ceph osd lspools 1 device_health_metrics 14 vm-over-cephfs_data 15 vm-over-cephfs_metadata 16 benchmark-rados-bench 22 cop_synology-nas 26 cop_guest-storage
查看 Pool 的配置参数
# ceph osd dump | grep cop_guest-storage pool 26 'cop_guest-storage' replicated size 2 min_size 2 crush_rule 0 object_hash rjenkins pg_num 32 pgp_num 32 autoscale_mode on last_change 11618 lfor 0/8490/8488 flags hashpspool,selfmanaged_snaps stripe_width 0 application rbd // -------------------------------------------------------- // 查看存储池的个别参数 # ceph osd pool get cop_guest-storage pg_num pg_num: 32 # ceph osd pool get cop_guest-storage pgp_num pgp_num: 32 # ceph osd pool get cop_guest-storage nodelete nodelete: false
查看 Pool 的统计信息
# ceph osd pool stats cop_guest-storage pool cop_guest-storage id 26 client io 53 KiB/s wr, 0 op/s rd, 8 op/s wr
常见问题处理
[Sol.] application not enabled on pool ‘xxx’
问题描述：在 ceph status 中，提示 application not enabled on pool ‘xxx’ 错误；
原因分析：ASSOCIATE POOL TO APPLICATION
解决方案：ceph osd pool application enable {pool-name} {application-name}
[Sol.] x pool(s) have non-power-of-two pg_num
修改 PG 数量（pg_num）即可；