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F OpenNebula/one#7900: add OneBEX RBD exporter docs to master #950

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rsmontero merged 1 commit into from
Sep 21, 2026
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F OpenNebula/one#7900: add OneBEX RBD exporter docs to master #950

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4 changes: 2 additions & 2 deletions content/product/cluster_configuration/backup_system/veeam.md
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Expand Up @@ -30,11 +30,11 @@ The following table summarizes the supported backup modes for each storage syste
|--------------|------|-------------|
| File (qcow2) | Yes | Yes |
| File (raw) | No† | No† |
| Ceph | No† | No† |
| Ceph (RBD) | Yes | Yes |
| LVM | Yes | Yes |
| NetApp | No† | No† |

<sup>†</sup> These backup modes were supported in previous OpenNebula versions, such as 7.0 and 7.2. In OpenNebula version 7.4, they are not supported by the current OneBEX-based integration, but are planned to be supported in a future maintenance releases.
<sup>†</sup> File (raw) and NetApp backup modes were supported in previous OpenNebula versions, such as 7.0 and 7.2. In OpenNebula version 7.4, they are not supported by the current OneBEX-based integration, but are planned to be supported in future maintenance releases.

### Volatile Disk Backups

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8 changes: 5 additions & 3 deletions ...integration_references/infrastructure_drivers_development/interactive_backup.md
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Expand Up @@ -39,11 +39,11 @@ The current interactive backup implementation supports the following configurati
| Component | Support |
|-----------|---------|
| Hypervisor | KVM |
| VM disk storage | File-based `qcow2` disks and disks on LVM datastores |
| VM disk storage | File-based `qcow2` disks, disks on LVM datastores, and Ceph RBD disks |
| Backup types | Full and incremental |
| Incremental mode | CBT only (`INCREMENT_MODE="CBT"`) |
| VM state | Running and powered off VMs |
| OneBEX exporter | NBD, LVM |
| OneBEX exporter | NBD, LVM, RBD |

{{< alert title="Important" type="info" >}}
Interactive incremental backups do not support the `SNAPSHOT` increment mode. OpenNebula rejects this combination when the backup configuration is updated.
Expand Down Expand Up @@ -249,7 +249,8 @@ The OneBEX API is consumed by backup integrations. The current API is:
{
"EXPORTERS": [
"nbd",
"lvm"
"lvm",
"rbd"
]
}
```
Expand Down Expand Up @@ -601,3 +602,4 @@ OneBEX uses exporters to expose VM disk data to external backup systems.
|----------|-----------------|-----------|-------------|
| `nbd` | File-based `qcow2` disks | Network Block Device | Exposes the backup disk through NBD. OneBEX starts a read-only `qemu-nbd` process and serves the disk export through a Unix socket. |
| `lvm` | Disks on LVM datastores | Direct block-device reads | Exposes the prepared LVM block device directly. Full backups return the full device extent. Incremental backups use `thin_delta` to return changed extents from LVM thin metadata. |
| `rbd` | Ceph RBD disks | Direct RBD reads | Exposes the prepared Ceph RBD snapshot directly. Full backups return the full image extent, while incremental backups return the changed extents between RBD snapshots. |
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