rbd-mirror-dr

rbd-mirror-dr is a skill for Claude Code from sserkanml/ceph-cookbook. It costs 81 tokens per session (1,017 once invoked), scanned A, original, GPL-3.0.

A procedure for mirroring Ceph block-storage data between two clusters for disaster recovery. RBD is Ceph’s virtual-disk storage system, and mirroring copies its data to another cluster.

In plain words
What is it for?
Use it to configure journal- or snapshot-based RBD mirroring and perform failover or promotion.
Why use it?
It gives you a planned way to keep a recovery copy and switch storage to the other cluster after a failure.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the ceph-cookbook plugin — 14 skills, 2 agents, 1 hook, 1 MCP server shipped together

Good fit Use it to configure journal- or snapshot-based RBD mirroring and perform failover or promotion.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/sserkanml/ceph-cookbook/rbd-mirror-dr
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add sserkanml/ceph-cookbook --skill rbd-mirror-dr
Clone the repo
git clone --depth 1 https://github.com/sserkanml/ceph-cookbook

Made for: Claude Code.

Or install ceph-cookbook, the plugin that ships this one along with the rest of its 14 skills, 2 agents, 1 hook, 1 MCP server.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for rbd-mirror-dr

README.md
[![agentmods](https://agentmods.dev/badge/skills/sserkanml/ceph-cookbook/rbd-mirror-dr/github.svg)](https://agentmods.dev/skills/sserkanml/ceph-cookbook/rbd-mirror-dr)
Your own site
<a href="https://agentmods.dev/skills/sserkanml/ceph-cookbook/rbd-mirror-dr"><img src="https://agentmods.dev/badge/skills/sserkanml/ceph-cookbook/rbd-mirror-dr/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for rbd-mirror-dr

Your own site · 80×15
<a href="https://agentmods.dev/skills/sserkanml/ceph-cookbook/rbd-mirror-dr"><img src="https://agentmods.dev/badge/skills/sserkanml/ceph-cookbook/rbd-mirror-dr.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 81 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,017 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin unknown No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00081 $0.01017
Opus 5 $0.00041 $0.00508
Sonnet 5 $0.00016 $0.00203
Haiku 4.5 $0.00008 $0.00102

Measured 11d ago against content hash 9ff96072b858, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

rbd-mirror-dr scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 11d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

skills/rbd-mirror-dr/SKILL.md · 121 lines

The source is not reproduced here

Licensed GPL-3.0

The repository is licensed GPL-3.0, which this catalogue does not treat as permission to reproduce the file. Read it at the source.

Read it on GitHub

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 11d ago First seen · 121 lines · 81 tokens per session scan A 9ff96072b858

Subscribe to this mod's changes

rbd-mirror-dr is a skill published in the GitHub repository sserkanml/ceph-cookbook (2 stars, last pushed 1mo ago), licensed GPL-3.0. It adds 81 tokens to every session and 1,017 once invoked, about $0.0004 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

Related

Other skills, from other repositories

rook-code-review

Use when reviewing, auditing, or sanity-checking rook (github.com/rook/) code, tests, docs, or workflows — a working tree, branch, commit range, or PR; when checking a branch before opening a PR; when reviewing, critiquing, or stress-testing a rook design proposal, design doc, enhancement doc, or design/ change before…

jhoblitt/rook-claude · 116 tokens

rook-pr-takeover

Use when taking over, adopting, or superseding a rook (github.com/rook/) pull request — an author who abandoned it, stopped responding to change requests, or produced an AI-burst PR whose substance is still worth landing. Covers both approaches: editing the existing PR's title and description in place, and opening a…

jhoblitt/rook-claude · 0 tokens

ceph-aiops

Use this skill whenever the user needs to operate or diagnose a Ceph cluster via its ceph-mgr Dashboard REST API — decode a HEALTHWARN/ERR state into cause + action (clusterhealth), read the cluster status, inspect OSDs (tree/df/perf), placement groups (summary/stuck/scrub), pools (list/usable capacity), RBD images…

AIops-tools/Ceph-AIops · 391 tokens

troubleshoot-ceph

Use when diagnosing issues with Ceph: capacity exhaustion, stuck pgs, slow requests, mon quorum loss, or osd flapping. Queries Netdata via MCP for Ceph health signals, applies the diagnostic tree from the Netdata operator playbook, and recommends remediation.

netdata/skills · 61 tokens

systematic-debugging

Use when encountering any bug, test failure, or unexpected behavior, before proposing fixes.

obra/superpowers · 21 tokens

local-ai-agents

Build local-first AI agents that run entirely on a developer workstation with Microsoft Foundry Local and Qwen function-calling models. Covers Small Language Models (SLMs), the OpenAI-compatible local endpoint, sandboxed local tools, local RAG with Chroma, local MCP servers, hybrid cloud/local routing, and the…

microsoft/ai-agents-for-beginners · 200 tokens