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How to create a new pool with EC4+2 on hdd

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Code Block
 ceph osd pool create metadata-<poolname> 32 32
 ceph osd pool set metadata-<poolname> crush_rule replicated_hdd


How to create a  pool in replica 3 which uses a specific device class

[root@ceph-mon-01 ~]# ceph osd pool get testfs crush_rule
crush_rule: replicated_hdd-cephfs

Assumo che ci siano gia' degli OSD che sono stati messi nella device class hdd-cephfs (v.

Jira
serverINFN Jira Software
columnIdsissuekey,summary,issuetype,created,updated,duedate,assignee,reporter,priority,status,resolution
columnskey,summary,type,created,updated,due,assignee,reporter,priority,status,resolution
serverId8087fedc-8816-3706-9e66-78f987f39e0c
keyPDCL-2592
)


Creo la crush rule:



Code Block
[root@ceph-mon-01 ~]# ceph osd crush rule create-replicated replicated_hdd-cephfs default host hdd-cephfs


Creo poi un pool che usi questa crush rule:


Code Block
 [root@ceph-mon-01 ~]#  ceph osd pool create testfs 32 32 replicated replicated_hdd-cephfs


Verifico:

Code Block
[root@ceph-mon-01 ~]# ceph osd pool get testfs crush_rule
crush_rule: replicated_hdd-cephfs