Bug 2401806
| Summary: | logical volume DB devices specified in the OSD specification are not recognized or assigned during OSD deployment | ||
|---|---|---|---|
| Product: | [Red Hat Storage] Red Hat Ceph Storage | Reporter: | Vipin M S <vips> |
| Component: | Ceph-Volume | Assignee: | Guillaume Abrioux <gabrioux> |
| Status: | CLOSED ERRATA | QA Contact: | Vipin M S <vips> |
| Severity: | high | Docs Contact: | |
| Priority: | high | ||
| Version: | 9.0 | CC: | bhubbard, ceph-eng-bugs, cephqe-warriors, gabrioux, ngangadh, nojha, vumrao |
| Target Milestone: | --- | Keywords: | Regression |
| Target Release: | 9.0 | Flags: | vips:
needinfo+
|
| Hardware: | Unspecified | ||
| OS: | Unspecified | ||
| Whiteboard: | |||
| Fixed In Version: | ceph-20.1.0-59 | Doc Type: | If docs needed, set a value |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2026-01-29 07:01:10 UTC | Type: | Bug |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory (Moderate: Red Hat Ceph Storage 9.0 Security and Enhancement update), and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. https://access.redhat.com/errata/RHSA-2026:1536 |
Description of problem: In Ceph version 20.1.0-30.el9cp (Tentacle), DB devices created as logical volumes (LVs) and specified in the OSD specification are not recognized or assigned during OSD deployment. This issue is not observed in the version 19.2.1-274.el9cp (Squid), where the DB devices are correctly detected and assigned. Tentacle Steps to reproduce and output of commands: 1. Deploy a Ceph cluster using Tentacle release. [ceph: root@ceph-vipin-tentacle-jmj9c6-node1-installer /]# ceph versions { "mon": { "ceph version 20.1.0-30.el9cp (c67d9ef2f8ecdabc8dbb6436bd938caff22c954a) tentacle (rc - RelWithDebInfo)": 3 }, "mgr": { "ceph version 20.1.0-30.el9cp (c67d9ef2f8ecdabc8dbb6436bd938caff22c954a) tentacle (rc - RelWithDebInfo)": 3 }, "osd": { "ceph version 20.1.0-30.el9cp (c67d9ef2f8ecdabc8dbb6436bd938caff22c954a) tentacle (rc - RelWithDebInfo)": 14 }, "overall": { "ceph version 20.1.0-30.el9cp (c67d9ef2f8ecdabc8dbb6436bd938caff22c954a) tentacle (rc - RelWithDebInfo)": 20 } } 2. Create LVM-backed data and DB devices on nodes and Verify volumes $ vgcreate data_db_vg /dev/vdb /dev/vdc /dev/vdd /dev/vde /dev/vdf $ for i in {1..5}; do lvcreate -L 5G -n data-lv-$i data_db_vg; done $ for i in {1..5}; do lvcreate -L 1G -n db-lv-$i data_db_vg; done [root@ceph-vipin-tentacle-jmj9c6-node3 ~]# pvs PV VG Fmt Attr PSize PFree /dev/vdb data_db_vg lvm2 a-- <25.00g 1020.00m /dev/vdc data_db_vg lvm2 a-- <25.00g <19.00g /dev/vdd data_db_vg lvm2 a-- <25.00g <25.00g /dev/vde data_db_vg lvm2 a-- <25.00g <25.00g /dev/vdf data_db_vg lvm2 a-- <25.00g <25.00g [root@ceph-vipin-tentacle-jmj9c6-node3 ~]# lvs LV VG Attr LSize Pool Origin Data% Meta% Move Log Cpy%Sync Convert data-lv-1 data_db_vg -wi-a----- 5.00g data-lv-2 data_db_vg -wi-ao---- 5.00g data-lv-3 data_db_vg -wi-ao---- 5.00g data-lv-4 data_db_vg -wi-ao---- 5.00g data-lv-5 data_db_vg -wi-ao---- 5.00g db-lv-1 data_db_vg -wi-a----- 1.00g db-lv-2 data_db_vg -wi-a----- 1.00g db-lv-3 data_db_vg -wi-a----- 1.00g db-lv-4 data_db_vg -wi-a----- 1.00g db-lv-5 data_db_vg -wi-a----- 1.00g [root@ceph-vipin-tentacle-jmj9c6-node3 ~]# vgs VG #PV #LV #SN Attr VSize VFree data_db_vg 5 10 0 wz--n- 124.98g 94.98g 3. Create and apply OSD spec [ceph: root@ceph-vipin-tentacle-jmj9c6-node1-installer /]# cat osd.yaml --- service_type: osd service_id: osd_using_paths placement: host_pattern: '*' data_devices: paths: - /dev/data_db_vg/data-lv-1 - /dev/data_db_vg/data-lv-2 - /dev/data_db_vg/data-lv-3 - /dev/data_db_vg/data-lv-4 - /dev/data_db_vg/data-lv-5 db_devices: paths: - /dev/data_db_vg/db-lv-1 - /dev/data_db_vg/db-lv-2 - /dev/data_db_vg/db-lv-3 - /dev/data_db_vg/db-lv-4 - /dev/data_db_vg/db-lv-5 --- [ceph: root@ceph-vipin-tentacle-jmj9c6-node1-installer /]# ceph orch apply -i osd.yaml Scheduled osd.osd_using_paths update... 4. Wait until the OSD deployment is complete. Weight of OSD device is 0.00490. [ceph: root@ceph-vipin-tentacle-jmj9c6-node1-installer /]# ceph osd tree ID CLASS WEIGHT TYPE NAME STATUS REWEIGHT PRI-AFF -1 0.07347 root default -3 0.02449 host ceph-vipin-tentacle-jmj9c6-node3 0 hdd 0.00490 osd.0 up 1.00000 1.00000 3 hdd 0.00490 osd.3 up 1.00000 1.00000 5 hdd 0.00490 osd.5 up 1.00000 1.00000 8 hdd 0.00490 osd.8 up 1.00000 1.00000 11 hdd 0.00490 osd.11 up 1.00000 1.00000 -7 0.02449 host ceph-vipin-tentacle-jmj9c6-node4 2 hdd 0.00490 osd.2 up 1.00000 1.00000 6 hdd 0.00490 osd.6 up 1.00000 1.00000 9 hdd 0.00490 osd.9 up 1.00000 1.00000 12 hdd 0.00490 osd.12 up 1.00000 1.00000 14 hdd 0.00490 osd.14 up 1.00000 1.00000 -5 0.02449 host ceph-vipin-tentacle-jmj9c6-node5 1 hdd 0.00490 osd.1 up 1.00000 1.00000 4 hdd 0.00490 osd.4 up 1.00000 1.00000 7 hdd 0.00490 osd.7 up 1.00000 1.00000 10 hdd 0.00490 osd.10 up 1.00000 1.00000 13 hdd 0.00490 osd.13 up 1.00000 1.00000 5. Check the OSDs created and their db devices. Notice that the db devices are not assigned to the OSDs $ ssh root@ceph-vipin-tentacle-jmj9c6-node3 [root@ceph-vipin-tentacle-jmj9c6-node3 ~]# systemctl | grep osd ceph-48e91ebe-a04f-11f0-8854-fa163ec16f2b.service loaded active running Ceph osd.0 for 48e91ebe-a04f-11f0-8854-fa163ec16f2b ceph-48e91ebe-a04f-11f0-8854-fa163ec16f2b.service loaded active running Ceph osd.11 for 48e91ebe-a04f-11f0-8854-fa163ec16f2b ceph-48e91ebe-a04f-11f0-8854-fa163ec16f2b.service loaded active running Ceph osd.3 for 48e91ebe-a04f-11f0-8854-fa163ec16f2b ceph-48e91ebe-a04f-11f0-8854-fa163ec16f2b.service loaded active running Ceph osd.5 for 48e91ebe-a04f-11f0-8854-fa163ec16f2b ceph-48e91ebe-a04f-11f0-8854-fa163ec16f2b.service loaded active running Ceph osd.8 for 48e91ebe-a04f-11f0-8854-fa163ec16f2b [root@ceph-vipin-tentacle-jmj9c6-node3 ~]# systemctl stop ceph-48e91ebe-a04f-11f0-8854-fa163ec16f2b.service [root@ceph-vipin-tentacle-jmj9c6-node3 ~]# cephadm shell --name osd.0 -- ceph-bluestore-tool --path /var/lib/ceph/osd/ceph-0 show-label Inferring fsid 48e91ebe-a04f-11f0-8854-fa163ec16f2b Inferring config /var/lib/ceph/48e91ebe-a04f-11f0-8854-fa163ec16f2b/osd.0/config Creating an OSD daemon form without an OSD FSID value inferring bluefs devices from bluestore path { "/var/lib/ceph/osd/ceph-0/block": { "osd_uuid": "f6095841-924a-43da-8b23-19452b5224f7", "size": 5368709120, "btime": "2025-10-06T06:08:13.200111+0000", "description": "main", "bfm_blocks": "1310720", "bfm_blocks_per_key": "128", "bfm_bytes_per_block": "4096", "bfm_size": "5368709120", "bluefs": "1", "ceph_fsid": "48e91ebe-a04f-11f0-8854-fa163ec16f2b", "ceph_version_when_created": "ceph version 20.1.0-30.el9cp (c67d9ef2f8ecdabc8dbb6436bd938caff22c954a) tentacle (rc - RelWithDebInfo)", "created_at": "2025-10-06T06:08:13.745074Z", "elastic_shared_blobs": "1", "epoch": "18", "kv_backend": "rocksdb", "magic": "ceph osd volume v026", "multi": "yes", "osd_key": "AQDLXONoNGAWOxAAT4AH/7H32M/PMOuE/U4ABw==", "osdspec_affinity": "osd_using_paths", "ready": "ready", "require_osd_release": "20", "type": "bluestore", "whoami": "0", "locations": [ "0x0", "0x40000000" ] } } [root@ceph-vipin-tentacle-jmj9c6-node3 ~]# cephadm shell --name osd.0 -- ceph-bluestore-tool --path /var/lib/ceph/osd/ceph-0 bluefs-bdev-sizes Inferring fsid 48e91ebe-a04f-11f0-8854-fa163ec16f2b Inferring config /var/lib/ceph/48e91ebe-a04f-11f0-8854-fa163ec16f2b/osd.0/config Creating an OSD daemon form without an OSD FSID value inferring bluefs devices from bluestore path 1 : device size 0x140000000(5 GiB) : using 0x1b10000(27 MiB) 6. ceph-volume lvm list command shows both data and db devices for the OSDs [root@ceph-vipin-tentacle-jmj9c6-node3 ~]# cephadm shell -- ceph-volume lvm list Inferring fsid 48e91ebe-a04f-11f0-8854-fa163ec16f2b ====== osd.0 ======= [block] /dev/data_db_vg/data-lv-1 block device /dev/data_db_vg/data-lv-1 block uuid 1q4wwR-tPhR-UkF4-kwFs-c3j4-tzYx-WNuJMW cephx lockbox secret cluster fsid 48e91ebe-a04f-11f0-8854-fa163ec16f2b cluster name ceph crush device class encrypted 0 objectstore bluestore osd fsid f6095841-924a-43da-8b23-19452b5224f7 osd id 0 osdspec affinity osd_using_paths type block vdo 0 with tpm 0 devices /dev/vdb [db] /dev/data_db_vg/db-lv-5 block device /dev/data_db_vg/data-lv-1 block uuid 1q4wwR-tPhR-UkF4-kwFs-c3j4-tzYx-WNuJMW cephx lockbox secret cluster fsid 48e91ebe-a04f-11f0-8854-fa163ec16f2b cluster name ceph crush device class db device /dev/data_db_vg/db-lv-5 db uuid h48xyT-qW4Z-IsBa-M1HY-0HmF-G1gE-Xxw3d8 encrypted 0 objectstore bluestore osd fsid f6095841-924a-43da-8b23-19452b5224f7 osd id 0 osdspec affinity osd_using_paths type db vdo 0 with tpm 0 devices /dev/vdc Squid output of commands: 1. Deploy a Ceph cluster using Squid release. [ceph: root@ceph-vipin-tfa-tcuis1-node1-installer /]# ceph versions { "mon": { "ceph version 19.2.1-274.el9cp (3a2f1cec313e6abbd90d9260bd5e0e866817c3c7) squid (stable)": 3 }, "mgr": { "ceph version 19.2.1-274.el9cp (3a2f1cec313e6abbd90d9260bd5e0e866817c3c7) squid (stable)": 3 }, "mds": { "ceph version 19.2.1-274.el9cp (3a2f1cec313e6abbd90d9260bd5e0e866817c3c7) squid (stable)": 2 }, "overall": { "ceph version 19.2.1-274.el9cp (3a2f1cec313e6abbd90d9260bd5e0e866817c3c7) squid (stable)": 8 } } 2. Create LVM-backed data and DB devices on nodes and Verify volumes $ vgcreate data_db_vg /dev/vdb /dev/vdc /dev/vdd /dev/vde /dev/vdf $ for i in {1..5}; do lvcreate -L 5G -n data-lv-$i data_db_vg; done $ for i in {1..5}; do lvcreate -L 1G -n db-lv-$i data_db_vg; done [root@ceph-vipin-tfa-tcuis1-node3 ~]# pvs PV VG Fmt Attr PSize PFree /dev/vdb data_db_vg lvm2 a-- <25.00g 1020.00m /dev/vdc data_db_vg lvm2 a-- <25.00g <19.00g /dev/vdd data_db_vg lvm2 a-- <25.00g <25.00g /dev/vde data_db_vg lvm2 a-- <25.00g <25.00g /dev/vdf data_db_vg lvm2 a-- <25.00g <25.00g [root@ceph-vipin-tfa-tcuis1-node3 ~]# lvs LV VG Attr LSize Pool Origin Data% Meta% Move Log Cpy%Sync Convert data-lv-1 data_db_vg -wi-a----- 5.00g data-lv-2 data_db_vg -wi-a----- 5.00g data-lv-3 data_db_vg -wi-a----- 5.00g data-lv-4 data_db_vg -wi-a----- 5.00g data-lv-5 data_db_vg -wi-a----- 5.00g db-lv-1 data_db_vg -wi-a----- 1.00g db-lv-2 data_db_vg -wi-a----- 1.00g db-lv-3 data_db_vg -wi-a----- 1.00g db-lv-4 data_db_vg -wi-a----- 1.00g db-lv-5 data_db_vg -wi-a----- 1.00g [root@ceph-vipin-tfa-tcuis1-node3 ~]# vgs VG #PV #LV #SN Attr VSize VFree data_db_vg 5 10 0 wz--n- 124.98g 94.98g 3. Create and apply OSD spec [ceph: root@ceph-vipin-tfa-tcuis1-node1-installer /]# cat osd.yaml service_type: osd service_id: osd_using_paths placement: host_pattern: '*' data_devices: paths: - /dev/data_db_vg/data-lv-1 - /dev/data_db_vg/data-lv-2 - /dev/data_db_vg/data-lv-3 - /dev/data_db_vg/data-lv-4 - /dev/data_db_vg/data-lv-5 db_devices: paths: - /dev/data_db_vg/db-lv-1 - /dev/data_db_vg/db-lv-2 - /dev/data_db_vg/db-lv-3 - /dev/data_db_vg/db-lv-4 - /dev/data_db_vg/db-lv-5 --- [ceph: root@ceph-vipin-tfa-tcuis1-node1-installer /]# ceph orch apply -i osd.yaml Scheduled osd.osd_using_paths update... 4. Wait until the OSD deployment is complete. Weight of OSD device is 0.00589. [ceph: root@ceph-vipin-tfa-tcuis1-node1-installer /]# ceph osd tree ID CLASS WEIGHT TYPE NAME STATUS REWEIGHT PRI-AFF -1 0.08835 root default -3 0.02945 host ceph-vipin-tfa-tcuis1-node3 0 hdd 0.00589 osd.0 up 1.00000 1.00000 3 hdd 0.00589 osd.3 up 1.00000 1.00000 6 hdd 0.00589 osd.6 up 1.00000 1.00000 10 hdd 0.00589 osd.10 up 1.00000 1.00000 13 hdd 0.00589 osd.13 up 1.00000 1.00000 -7 0.02945 host ceph-vipin-tfa-tcuis1-node4 2 hdd 0.00589 osd.2 up 1.00000 1.00000 5 hdd 0.00589 osd.5 up 1.00000 1.00000 8 hdd 0.00589 osd.8 up 1.00000 1.00000 11 hdd 0.00589 osd.11 up 1.00000 1.00000 14 hdd 0.00589 osd.14 up 1.00000 1.00000 -5 0.02945 host ceph-vipin-tfa-tcuis1-node5 1 hdd 0.00589 osd.1 up 1.00000 1.00000 4 hdd 0.00589 osd.4 up 1.00000 1.00000 7 hdd 0.00589 osd.7 up 1.00000 1.00000 9 hdd 0.00589 osd.9 up 1.00000 1.00000 12 hdd 0.00589 osd.12 up 1.00000 1.00000 5. Check the OSDs created and their db devices. Notice that the db devices are assigned to the OSDs $ ssh root@ceph-vipin-tfa-tcuis1-node3 [root@ceph-vipin-tfa-tcuis1-node3 ~]# systemctl | grep osd ceph-cf69bcf4-a280-11f0-90c8-fa163ed8f4d8.service loaded active running Ceph osd.0 for cf69bcf4-a280-11f0-90c8-fa163ed8f4d8 ceph-cf69bcf4-a280-11f0-90c8-fa163ed8f4d8.service loaded active running Ceph osd.10 for cf69bcf4-a280-11f0-90c8-fa163ed8f4d8 ceph-cf69bcf4-a280-11f0-90c8-fa163ed8f4d8.service loaded active running Ceph osd.13 for cf69bcf4-a280-11f0-90c8-fa163ed8f4d8 ceph-cf69bcf4-a280-11f0-90c8-fa163ed8f4d8.service loaded active running Ceph osd.3 for cf69bcf4-a280-11f0-90c8-fa163ed8f4d8 ceph-cf69bcf4-a280-11f0-90c8-fa163ed8f4d8.service loaded active running Ceph osd.6 for cf69bcf4-a280-11f0-90c8-fa163ed8f4d8 [root@ceph-vipin-tfa-tcuis1-node3 ~]# systemctl stop ceph-cf69bcf4-a280-11f0-90c8-fa163ed8f4d8.service [root@ceph-vipin-tfa-tcuis1-node3 ~]# cephadm shell --name osd.0 -- ceph-bluestore-tool --path /var/lib/ceph/osd/ceph-0 show-label Inferring fsid cf69bcf4-a280-11f0-90c8-fa163ed8f4d8 Inferring config /var/lib/ceph/cf69bcf4-a280-11f0-90c8-fa163ed8f4d8/osd.0/config Using ceph image with id 'acd3be5988e9' and tag '<none>' created on 2025-09-23 22:53:37 +0000 UTC registry-proxy.engineering.redhat.com/rh-osbs/rhceph@sha256:24590b9ab8aebfeebfde344ec0c522164efd57c28f8f88692b91673c7f8f164a Creating an OSD daemon form without an OSD FSID value inferring bluefs devices from bluestore path { "/var/lib/ceph/osd/ceph-0/block": { "osd_uuid": "9f74ffdc-1d9d-4c18-bff0-2a756f01bb23", "size": 5368709120, "btime": "2025-10-06T08:05:19.384171+0000", "description": "main", "bfm_blocks": "1310720", "bfm_blocks_per_key": "128", "bfm_bytes_per_block": "4096", "bfm_size": "5368709120", "bluefs": "1", "ceph_fsid": "cf69bcf4-a280-11f0-90c8-fa163ed8f4d8", "ceph_version_when_created": "ceph version 19.2.1-274.el9cp (3a2f1cec313e6abbd90d9260bd5e0e866817c3c7) squid (stable)", "created_at": "2025-10-06T08:05:22.528489Z", "elastic_shared_blobs": "1", "epoch": "18", "kv_backend": "rocksdb", "magic": "ceph osd volume v026", "multi": "yes", "osd_key": "AQA+eONomnI8BBAAufDg726qwuI32JDR8aBuxQ==", "osdspec_affinity": "osd_using_paths", "ready": "ready", "require_osd_release": "19", "type": "bluestore", "whoami": "0", "locations": [ "0x0", "0x40000000" ] }, "/var/lib/ceph/osd/ceph-0/block.db": { "osd_uuid": "9f74ffdc-1d9d-4c18-bff0-2a756f01bb23", "size": 1073741824, "btime": "2025-10-06T08:05:19.394167+0000", "description": "bluefs db", "locations": [ "0x0" ] } } [root@ceph-vipin-tfa-tcuis1-node3 ~]# cephadm shell --name osd.0 -- ceph-bluestore-tool --path /var/lib/ceph/osd/ceph-0 bluefs-bdev-sizes Inferring fsid cf69bcf4-a280-11f0-90c8-fa163ed8f4d8 Inferring config /var/lib/ceph/cf69bcf4-a280-11f0-90c8-fa163ed8f4d8/osd.0/config Using ceph image with id 'acd3be5988e9' and tag '<none>' created on 2025-09-23 22:53:37 +0000 UTC registry-proxy.engineering.redhat.com/rh-osbs/rhceph@sha256:24590b9ab8aebfeebfde344ec0c522164efd57c28f8f88692b91673c7f8f164a Creating an OSD daemon form without an OSD FSID value inferring bluefs devices from bluestore path 1 : device size 0x40000000(1 GiB) : using 0x3a02000(58 MiB) 2 : device size 0x140000000(5 GiB) : using 0x211000(2.1 MiB) [root@ceph-vipin-tfa-tcuis1-node3 ~]# cephadm shell ceph-volume lvm list Inferring fsid cf69bcf4-a280-11f0-90c8-fa163ed8f4d8 Using ceph image with id 'acd3be5988e9' and tag '<none>' created on 2025-09-23 22:53:37 +0000 UTC registry-proxy.engineering.redhat.com/rh-osbs/rhceph@sha256:24590b9ab8aebfeebfde344ec0c522164efd57c28f8f88692b91673c7f8f164a ====== osd.0 ======= [block] /dev/data_db_vg/data-lv-1 block device /dev/data_db_vg/data-lv-1 block uuid RhW2JT-AJ0p-cpjP-2ZHp-vgMG-Q78f-MeIVrO cephx lockbox secret cluster fsid cf69bcf4-a280-11f0-90c8-fa163ed8f4d8 cluster name ceph crush device class db device /dev/data_db_vg/db-lv-5 db uuid e1dJ6X-6ZBp-Z7AT-6Br2-eYkA-GqI9-Mzhyli encrypted 0 osd fsid 9f74ffdc-1d9d-4c18-bff0-2a756f01bb23 osd id 0 osdspec affinity osd_using_paths type block vdo 0 with tpm 0 devices /dev/vdb [db] /dev/data_db_vg/db-lv-5 block device /dev/data_db_vg/data-lv-1 block uuid RhW2JT-AJ0p-cpjP-2ZHp-vgMG-Q78f-MeIVrO cephx lockbox secret cluster fsid cf69bcf4-a280-11f0-90c8-fa163ed8f4d8 cluster name ceph crush device class db device /dev/data_db_vg/db-lv-5 db uuid e1dJ6X-6ZBp-Z7AT-6Br2-eYkA-GqI9-Mzhyli encrypted 0 osd fsid 9f74ffdc-1d9d-4c18-bff0-2a756f01bb23 osd id 0 osdspec affinity osd_using_paths type db vdo 0 with tpm 0 devices /dev/vdc Version-Release number of selected component (if applicable): ceph version 20.1.0-30.el9cp (c67d9ef2f8ecdabc8dbb6436bd938caff22c954a) tentacle (rc - RelWithDebInfo). How reproducible: 2/2 Actual results: Logical volumes specified under db_devices.paths in the OSD spec are not recognized or utilized during OSD deployment. Expected results: Logical volumes provided as DB devices should be correctly detected and assigned to the respective OSDs. Additional info: >>> OSD deployment with data and db paths without logical volumes works as expected in Tentacle release. [ceph: root@ceph-vipin-tentacle-jmj9c6-node1-installer /]# ceph orch ls osd --export service_type: osd service_id: osd_using_device service_name: osd.osd_using_device placement: hosts: - ceph-vipin-tentacle-jmj9c6-node5 spec: data_devices: paths: - /dev/vde db_devices: paths: - /dev/vdf filter_logic: AND objectstore: bluestore [root@ceph-vipin-tentacle-jmj9c6-node5 ~]# cephadm shell --name osd.1 -- ceph-bluestore-tool --path /var/lib/ceph/osd/ceph-1 show-label Inferring fsid 48e91ebe-a04f-11f0-8854-fa163ec16f2b Inferring config /var/lib/ceph/48e91ebe-a04f-11f0-8854-fa163ec16f2b/osd.1/config Creating an OSD daemon form without an OSD FSID value inferring bluefs devices from bluestore path { "/var/lib/ceph/osd/ceph-1/block": { "osd_uuid": "1b60388d-e7e0-4677-8e9c-e57f130af68d", "size": 26839351296, "btime": "2025-10-06T09:06:24.023505+0000", "description": "main", "bfm_blocks": "6552576", "bfm_blocks_per_key": "128", "bfm_bytes_per_block": "4096", "bfm_size": "26839351296", "bluefs": "1", "ceph_fsid": "48e91ebe-a04f-11f0-8854-fa163ec16f2b", "ceph_version_when_created": "ceph version 20.1.0-30.el9cp (c67d9ef2f8ecdabc8dbb6436bd938caff22c954a) tentacle (rc - RelWithDebInfo)", "created_at": "2025-10-06T09:06:24.795421Z", "elastic_shared_blobs": "1", "epoch": "18", "kv_backend": "rocksdb", "magic": "ceph osd volume v026", "multi": "yes", "osd_key": "AQCNhuNoUCD2NRAASrVrOn7Gefmu1hhERieFpA==", "osdspec_affinity": "osd_using_device", "ready": "ready", "require_osd_release": "20", "type": "bluestore", "whoami": "1", "locations": [ "0x0", "0x40000000", "0x280000000" ] }, "/var/lib/ceph/osd/ceph-1/block.db": { "osd_uuid": "1b60388d-e7e0-4677-8e9c-e57f130af68d", "size": 26839351296, "btime": "2025-10-06T09:06:24.037337+0000", "description": "bluefs db", "locations": [ "0x0" ] } }