Added volume migration - #177
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Pull request overview
Adds a new maintenance-operations documentation page describing how the Simplyblock Operator performs live volume migration and how users can trigger/observe it.
Changes:
- Documented volume migration concepts and configuration (
volumeMigrationSettingsandvolumeAutoPlacement). - Added step-by-step procedures for manual migrations, aborting, and PVC pinning-based migrations.
- Documented drain/removal-related migrations, pinned-volume behavior, post-migration data realignment, and relevant events.
Comments suppressed due to low confidence (2)
docs/maintenance-operations/volume-migration.md:271
- Grammar: “can also be trigger immediately” should be “can also be triggered immediately”.
successful realignment. However, a realignment can also be trigger immediately by annotating the
docs/maintenance-operations/volume-migration.md:290
- Spelling consistency: this page uses both “canceled” and “cancelled” when describing aborting migrations. Consider using one spelling throughout (e.g., “canceled” to match the earlier section).
| `MigrationAborted` | The migration was cancelled via `spec.abort`. |
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| There are also automated processes that create a `VolumeMigration` resource, for example, setting the | ||
| `simplyblock.io/selected-storage-node` annotation on an already-bound PVC. This will effectively migrate the pinned | ||
| volume to a new storage node UUID. The operator create a `VolumeMigration` on the user's behalf, as part of moving the |
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| Volumes whose backing logical volume has no corresponding PV (for example, a volume created outside | ||
| Kubernetes) also block removal, with an `UnmanagedVolumeBlocking` event, until they are resolved. |
Contributor
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🤖: Deployment available as https://docstest.simplyblock.io/volume-migration |
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Added initial documentation for volume migration.