Runing "rbd mirror pool peer set testpool 0622b647-2c24-4840-93d0-efdee180ab15 site-name backup"
get's me:
2020-07-24T14:07:57.205+0200 7fc414af53c0 -1 librbd::api::Mirror: peer_site_set_name: failed to update site '0622b647-2c24-4840-93d0-efdee180ab15': (17) File exists
So I deleted peers again and recreated with same site-name.
On main site it looks this way:
rbd mirror pool info testpool
Mode: image
Site Name: ceph
Peer Sites:
UUID: e68b09de-1d2c-4ec6-9350-a6ccad26e1b7
Name: ceph
Mirror UUID: 4d7f87f4-47be-46dd-85f1-79caa3fa23da
Direction: tx-only
On backup site:
rbd --cluster backup mirror pool info testpool
Mode: image
Site Name: ceph
Peer Sites:
UUID: 399e902c-deee-498c-bcdc-1c4f7a59433a
Name: ceph
Mirror UUID:
Direction: rx-tx
Client: client.admin
But situation didn't change.