redpanda-data/redpanda

rpk: Add RAID0 setup support

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#16,564 opened on Feb 9, 2024

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area/rpkgood first issue

Description

Similar to Scylla's RAID setup script: https://github.com/scylladb/scylladb/blob/master/dist/common/scripts/scylla_raid_setup

Requirements

  1. It should assemble a RAID0 disk from one or many disk devices.
  2. It should format the RAID0 disk
  3. It should mount the RAID0 disk in a user-specified path
  4. It should make it possible to pass mount options
  5. It should reassemble and remount correctly the RAID0 disk, if the VM is migrated to a different physical host (Happens a lot in GCP). It should not allow the RAID0 disk to re-assemble as foreign.
  6. It should reassemble and remount correctly the RAID0 disk if the VM is rebooted.
  7. It should receive one or multiple disk device paths as input, not try to discover them.
  8. If the RAID0 disk already exists, it is assembled and XFS formatted, it should do nothing.
  9. It should fail if any dependent commands are not found. Ex: mdadm, xfsprogs, nvmectl, etc.
  10. It should offer a debug mode and print abundant information.
  11. It should account for udevd and wait for device nodes to settle before attempting any setup.

JIRA Link: CORE-1768

Contributor guide

Tech stack
goshell
Domain
devopsinfrastructure
Issue type
feature
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
4
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
3-5 days
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
clear
Prerequisites
Go programmingLinux RAID conceptsfamiliarity with rpk codebase
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
40
Research direction
First, study the existing rpk command structure (e.g., 'rpk cluster', 'rpk topic') to understand how to add a new command. Then, look at the Scylla RAID setup script referenced in the issue for implementation reference. Review the Redpanda codebase for any existing storage or disk management utilities. The issue has detailed requirements that must be implemented step by step.