Hi! In replicated pool rbd - the same behavior with tier. ----- Original Message ----- From: "Vasiliy Tolstov" <vase@xxxxxxxxx> To: "Konstantin Shalygin" <k0ste@xxxxxxxx> Cc: ceph-users@xxxxxxxxxxxxxx, "Fyodor Ustinov" <ufm@xxxxxx> Sent: Sunday, 26 August, 2018 09:39:15 Subject: Re: Why rbd rn did not clean used pool? Why avoid cache tier? Does this only for erasure or for replicated too? вс, 26 Авг 2018, 7:42 Konstantin Shalygin <k0ste@xxxxxxxx>: > > Configuration: > > rbd - erasure pool > > rbdtier - tier pool for rbd > > > > ceph osd tier add-cache rbd rbdtier 549755813888 > > ceph osd tier cache-mode rbdtier writeback > > > > Create new rbd block device: > > rbd create --size 16G rbdtest > > rbd feature disable rbdtest object-map fast-diff deep-flatten > > rbd device map rbdtest > > > > And fill in rbd0 by data (dd, fio and like). > > > > Remove rbd block device: > > rbd device unmap rbdtest > > rbd rm rbdtest > > > > And now pool usage look like: > > > > POOLS: > > NAME ID USED %USED MAX AVAIL OBJECTS > > rbd 9 16 GiB 0 0 B 4094 > > rbdtier 14 104 KiB 0 1.7 TiB 5110 > > > Avoid cache-tier configurations. Write rbd objects to EC pool directly > since luminous clients. > > > > k > > _______________________________________________ > ceph-users mailing list > ceph-users@xxxxxxxxxxxxxx > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com > _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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