Sometimes I get a little lost in the naming of RADOS objects in the case of RGW. So I’m noting here the basic principles to find them:
| Case | Naming Format |
|---|---|
| In all cases | <bucket-id>_<object-name> (head) |
| Stripes on Large object | <bucket-id>__shadow_<prefix>_<stripe-id … |
| Release Date | Version (Community) | Red Hat Ceph Storage | IBM Storage Ceph |
|---|---|---|---|
| 2024-09-26 | Ceph 19.2 "Squid" | RHCS 8 | IBM Storage Ceph 8 |
| 2023-08-07 | Ceph 18.2 "Reef" | RHCS 7 | IBM Storage Ceph 7 |
| 2022-04-19 | Ceph 17.2 "Quincy" | RHCS 6 | IBM Storage Ceph 6 |
| 2021-03-31 | Ceph 16.2 "Pacific" | RHCS … |
A simple awk command for analyzing OSD usage in Ceph.
A quick test of NVMe over Fabrics (NVMe/TCP) and VMware...
If you are using rbd journaling feature (for example for rbd mirroring), in some cases it could be interesting to offloading journaling on specific pool. For example if your rbd pool is on hdd drives and you also have ssd or nvme.
To change rbd journaling pool, there are 2 …