Relax-and-Recover: Open-Source Backup Ledger 2026
ReaR is the standard way to rebuild a failed Linux server or move it to new hardware, and it ships with RHEL and SLES.
Part of the Open-Source Backup Ledger (edition 2026-10-02). How the scores work: methodology.
Snapshot
- Kind: Backup tool
- Licence: GPLv3
- Backer: Maintainers from IT3 Consultants, SUSE and Red Hat; shipped in RHEL and SLES
- Paid edition or support: Supported inside RHEL and SLES subscriptions; IT3 consulting
- Latest release: 2.9, 2025-02-13
- Next signal: ReaR 3.0: systemd-boot, Btrfs layouts, Secure Boot automation
- Archetype: Distro-backed recovery framework
- Evidence grade: A. Release dates verified against tags; 2.9 uses the GitHub release date.
Scope of the scores: A bare-metal disaster recovery framework, not a backup scheduler. It recreates Linux systems and hands file backup to tar or another backup product.
Scorecard
| Dimension | Score | Direction |
|---|---|---|
| Capability today | 47.6 / 100 | higher is better |
| Momentum since end of 2022 | +0.0 points | higher is better |
| Credibility | 18.0 / 25 | higher is better |
| Sustainability risk | 8.0 / 25 | lower is better |
| Technical lock-in | 3.0 / 25 | lower is better |
| Support and ecosystem | 14.5 / 20 | higher is better |
| AI leverage | 0.5 / 20 | higher is better |
| Ledger Index | 54.2 / 100 | balanced weights |
Capability by domain
Scores 0 to 5 against fixed anchors; total is weighted to 100.
| Domain (weight) | 2016 | 2019 | 2022 | Today |
|---|---|---|---|---|
| Virtual and physical servers (12) | 2.5 | 2.5 | 2.5 | 2.5 |
| Databases and applications (12) | 0.5 | 0.5 | 0.5 | 0.5 |
| Recovery (14) | 3.5 | 4 | 4 | 4 |
| Cyber resilience (14) | 1.5 | 1.5 | 2 | 2 |
| Storage efficiency and targets (10) | 2 | 2 | 2 | 2 |
| Long-term retention and tape (6) | 1.5 | 1.5 | 1.5 | 1.5 |
| Replication and DR (10) | 3.5 | 3.5 | 3.5 | 3.5 |
| Security and compliance (8) | 2 | 2 | 2.5 | 2.5 |
| New-platform support (VMware exit) (8) | 2 | 2 | 2 | 2 |
| Management at scale and automation (6) | 2 | 2 | 3 | 3 |
| Total / 100 | 42.8 | 44.2 | 47.6 | 47.6 |
Year by year: 2016: 42.8 · 2017: 42.8 · 2018: 42.8 · 2019: 44.2 · 2020: 44.2 · 2021: 44.2 · 2022: 47.6 · 2023: 47.6 · 2024: 47.6 · 2025: 47.6 · 2026: 47.6
What moved the score
| Year | Domain | Change | Points | Trigger |
|---|---|---|---|---|
| 2019 | Recovery | 3.5 → 4 | +1.4 | Recovery onto different hardware; unattended mode |
| 2022 | Cyber resilience | 1.5 → 2 | +1.4 | LUKS2 and Secure Boot during recovery |
| 2022 | Management at scale and automation | 2 → 3 | +1.2 | Red Hat system role for Ansible |
| 2022 | Security and compliance | 2 → 2.5 | +0.8 | Secure Boot signing, LUKS2 |
Direction, 2023 to 2026
Each item carries one theme and one driver (V vision, C customer need, M market window, U upstream, P portfolio).
| Date | Item | Theme | Driver |
|---|---|---|---|
| 2024-12 | 2.8 maintenance release | D12 Packaging and licensing | C |
| 2024-12 | 2.8: automated partition resizing during migration | D3 Recovery | C |
| 2025-02 | 2.9 release | D12 Packaging and licensing | C |
- Centre of gravity: Packaging and licensing (2), Recovery (1)
- Driver mix: Vision 0%, Customer need 100%, Market window 0%, Upstream 0%, Portfolio 0%
Credibility: 18.0 / 25
| Criterion | Score | Basis |
|---|---|---|
| Cadence | 3 | About one release a year |
| Roadmap transparency | 4 | Public milestones and issues |
| Say-do | 3.5 | 5 of 5 shipped; 2.8 arrived about 19 months after planned |
| Velocity | 3 | Moderate |
| Lifecycle stability | 4.5 | Shipped and maintained in RHEL and SLES |
Say-do record, 2023 to 2026: 5 items since 2023, all shipped; the 2.8 release came about 19 months after first planned.
Sustainability risk: 8 / 25 (lower is better)
| Criterion | Score | Basis |
|---|---|---|
| Maintainer concentration | 3 | A handful of maintainers |
| Backer health | 1 | Red Hat and SUSE ship and fund it |
| Licence-change risk | 1 | GPLv3, distributed copyright |
| Abandonment signs | 1 | Active, but no release since February 2025 |
| Security response | 2 | Through distribution security teams |
Project health: Last release 2025-02-13. 1,118 stars; 63 open issues (median 297 days), 21 open PRs (324 days). 8 to 15 distinct authors in recent years.
Technical lock-in: 3.0 / 25 (lower is better)
| Criterion | Score | Basis |
|---|---|---|
| Formats | 0.5 | ISO images and tar archives |
| Export path | 0.5 | Plain-text layout files |
| Stack coupling | 0.5 | Bash scripts and standard tools |
| Hardware / cloud coupling | 0 | x86, Arm, POWER, s390x |
| Skills and tooling coupling | 1.5 | Linux recovery skills |
Support and ecosystem: 14.5 / 20
| Criterion | Score | Basis |
|---|---|---|
| Paid support | 4 | Supported in RHEL and SLES |
| Consultants and partners | 3.5 | Built into Bareos, Bacula and SEP |
| Documentation | 3 | Adequate |
| Community and packaging | 4 | Packaged in major enterprise distributions |
AI leverage: 0.5 / 20
| Strand | Today | Latest step |
|---|---|---|
| AI for protection / protecting AI | 0 | none |
| AI platform stack | 0 | none |
| AI-assisted operations | 0 | none |
| Agent openness | 0.5 | 2016: CLI only |
No AI features.
Reading
ReaR is the standard way to rebuild a failed Linux server or move it to new hardware, and it ships with RHEL and SLES. It is a component, not a backup system: pair it with Bareos, Bacula or another product for the data itself.
Open questions and evidence caveats
- Linux only; no Windows bare-metal recovery.
Related reading
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