Skip to content

Add "RBD" section to architecture.md#13

Merged
senolcolak merged 2 commits intocobaltcore-dev:mainfrom
zdover23:docs-2026-03-26-architecture-rbd
Mar 26, 2026
Merged

Add "RBD" section to architecture.md#13
senolcolak merged 2 commits intocobaltcore-dev:mainfrom
zdover23:docs-2026-03-26-architecture-rbd

Conversation

@zdover23
Copy link
Copy Markdown
Contributor

@zdover23 zdover23 commented Mar 26, 2026

Add a section explaining RBD at a high-level for neophytes to Ceph.

Summary by CodeRabbit

  • Documentation
    • Added a new Ceph Block Device (RBD) overview to the architecture docs covering block-storage purpose, core design traits (thin provisioning, resizability, striping), client connectivity and caching behaviors, performance/scalability considerations, virtualization/cloud integration, unified multi-interface capabilities, and RADOS features like snapshotting and replication.

Add a section explaining RBD at a high-level for neophytes to Ceph.

Signed-off-by: Zac Dover <zac.dover@proton.me>
@coderabbitai
Copy link
Copy Markdown

coderabbitai bot commented Mar 26, 2026

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info
⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro

Run ID: 063fa368-abbf-42ba-bb6e-0138d169bf65

📥 Commits

Reviewing files that changed from the base of the PR and between f977c63 and b7fd7b3.

📒 Files selected for processing (1)
  • docs/architecture/ceph.md
🚧 Files skipped from review as they are similar to previous changes (1)
  • docs/architecture/ceph.md

📝 Walkthrough

Walkthrough

Adds a new "Ceph Block Device Summary (RBD)" section to the Ceph architecture documentation describing RBD purpose, design traits, client connectivity options, performance/scalability, virtualization/cloud integration, and RADOS features.

Changes

Cohort / File(s) Summary
Documentation - Ceph RBD Overview
docs/architecture/ceph.md
Inserted a new "Ceph Block Device Summary (RBD)" section before the "See Also" section covering RBD purpose, thin-provisioning, resizability, data striping across OSDs, kernel vs librbd client behaviors, performance/scalability notes, virtualization/cloud integration, multi-interface capability, and RADOS features (snapshots, replication, consistency).

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~3 minutes

Possibly related PRs

Suggested reviewers

  • senolcolak
  • arttor

Poem

🐰 I hopped through pages, nibbling lines of code,

New RBD tales tucked in the doc's abode.
Thin-striped blocks and snapshots neat,
I thump a drum for storage sweet.
Hooray for docs — a carrot treat! ✨

🚥 Pre-merge checks | ✅ 3
✅ Passed checks (3 passed)
Check name Status Explanation
Description Check ✅ Passed Check skipped - CodeRabbit’s high-level summary is enabled.
Title check ✅ Passed The title 'Add "RBD" section to architecture.md' directly and clearly summarizes the main change: adding documentation about RADOS Block Device (RBD) to the architecture file.
Docstring Coverage ✅ Passed No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.

✏️ Tip: You can configure your own custom pre-merge checks in the settings.

✨ Finishing Touches
🧪 Generate unit tests (beta)
  • Create PR with unit tests
⚔️ Resolve merge conflicts
  • Resolve merge conflict in branch docs-2026-03-26-architecture-rbd

Comment @coderabbitai help to get the list of available commands and usage tips.

Copy link
Copy Markdown

@coderabbitai coderabbitai bot left a comment

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Actionable comments posted: 1

🧹 Nitpick comments (1)
docs/architecture/ceph.md (1)

15-17: Consider adjusting the heading hierarchy or adding introductory content.

The "Architecture" heading (line 15) appears empty, immediately followed by "Ceph Block Device Summary (RBD)" at the same heading level. This creates ambiguity about whether RBD is a subsection of Architecture or a sibling section.

Consider either:

  1. Making RBD a subsection with ### Ceph Block Device (RBD), or
  2. Adding introductory content under "Architecture" that explains what will be covered

Also, since this section is quite comprehensive (120+ lines), consider dropping "Summary" from the title to avoid misleading readers about the depth of coverage.

🤖 Prompt for AI Agents
Verify each finding against the current code and only fix it if needed.

In `@docs/architecture/ceph.md` around lines 15 - 17, The "Architecture" header is
empty and followed by "Ceph Block Device Summary (RBD)", which creates a
hierarchy ambiguity: either convert "Ceph Block Device Summary (RBD)" into a
subsection (e.g., change "## Ceph Block Device Summary (RBD)" to "### Ceph Block
Device (RBD)") or add a brief introductory paragraph under the top-level "##
Architecture" explaining the document scope and listing subsections; also remove
"Summary" from the RBD heading to reflect the in-depth content (rename to "Ceph
Block Device (RBD)") for clarity.
🤖 Prompt for all review comments with AI agents
Verify each finding against the current code and only fix it if needed.

Inline comments:
In `@docs/architecture/ceph.md`:
- Around line 44-57: The paragraph under the "Performance and Scalability"
section incorrectly expands the acronym "KVM" as "Key-Value Machines (KVMs)";
update the text to read "Kernel-based Virtual Machine (KVM)" or simply "KVM" and
adjust the surrounding sentence referencing "Key-Value Machines (KVMs) such as
QEMU" to correctly say "Kernel-based Virtual Machine (KVM) such as QEMU" or "KVM
(Kernel-based Virtual Machine) such as QEMU" so the term is factually accurate
and consistent with the existing mention of libvirt and QEMU.

---

Nitpick comments:
In `@docs/architecture/ceph.md`:
- Around line 15-17: The "Architecture" header is empty and followed by "Ceph
Block Device Summary (RBD)", which creates a hierarchy ambiguity: either convert
"Ceph Block Device Summary (RBD)" into a subsection (e.g., change "## Ceph Block
Device Summary (RBD)" to "### Ceph Block Device (RBD)") or add a brief
introductory paragraph under the top-level "## Architecture" explaining the
document scope and listing subsections; also remove "Summary" from the RBD
heading to reflect the in-depth content (rename to "Ceph Block Device (RBD)")
for clarity.
🪄 Autofix (Beta)

Fix all unresolved CodeRabbit comments on this PR:

  • Push a commit to this branch (recommended)
  • Create a new PR with the fixes

ℹ️ Review info
⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro

Run ID: 07df25dd-9b01-4c88-9e5a-6b63c135d7cb

📥 Commits

Reviewing files that changed from the base of the PR and between f6d3249 and f977c63.

📒 Files selected for processing (1)
  • docs/architecture/ceph.md

@BarbaraW-PM BarbaraW-PM requested a review from senolcolak March 26, 2026 14:06
Copy link
Copy Markdown
Contributor

@senolcolak senolcolak left a comment

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Looks good,

@zdover23 zdover23 force-pushed the docs-2026-03-26-architecture-rbd branch from 6b7abdf to f977c63 Compare March 26, 2026 15:37
@senolcolak senolcolak merged commit 102a6ff into cobaltcore-dev:main Mar 26, 2026
4 checks passed
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment

Labels

None yet

Projects

None yet

Development

Successfully merging this pull request may close these issues.

2 participants