Warm-Standby Disaster Recovery Across Clouds with RcloneView (S3, Wasabi, R2, OneDrive)

Keep a live copy of production data in another region or cloud and switch within minutes when incidents strike.

Warm-standby DR pairs a primary location (e.g., AWS S3 or OneDrive) with a continuously updated standby (e.g., Cloudflare R2 or Wasabi). RcloneView layers a GUI over rclone so you can schedule steady syncs, validate drift with Compare, and mount the standby for rapid failover—without shell scripts.

Relevant docs

• Create Sync Jobs: https://rcloneview.com/support/howto/rcloneview-basic/create-sync-jobs
• Job Scheduling & Execution (Plus): https://rcloneview.com/support/howto/rcloneview-advanced/job-scheduling-and-execution
• Mount as local drive: https://rcloneview.com/support/howto/rcloneview-basic/mount-cloud-storage-as-a-local-drive
• Compare folders: https://rcloneview.com/support/howto/rcloneview-basic/compare-folder-contents

Manage & Sync All Clouds in One Place

RcloneView is a cross-platform GUI for rclone. Compare folders, transfer or sync files, and automate multi-cloud workflows with a clean, visual interface.

• One-click jobs: Copy · Sync · Compare
• Schedulers & history for reliable automation
• Works with Google Drive, OneDrive, Dropbox, S3, WebDAV, SFTP and more

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Free core features. Plus automations available.

Why warm-standby with RcloneView

• Faster recovery: Standby copies are within minutes/hours of primary, not days.
• Cloud choice: Mix S3, Wasabi, R2, B2, Google Drive, Dropbox, or OneDrive.
• No scripts: Build jobs in a wizard, not YAML/cron.
• Visible drift: Compare highlights mismatches before you need to fail over.
• Safer restores: Mount the standby and copy back without touching production.

Strategy and architecture

[Primary cloud/local/NAS] --(RcloneView scheduled Sync)--> [Standby cloud/region]
                                                \
                                                 --(Weekly Compare)--> [Drift report]

• Primary: where apps write (S3 bucket, OneDrive site, GDrive workspace, NAS).
• Standby: another region/provider with versioning (R2/Wasabi/S3/B2).
• Control: RcloneView runs sync on intervals; Compare checks integrity; Mount enables rapid access during failover.

Prerequisites

• Two remotes configured in RcloneView (e.g., s3:prod-bucket and r2:standby-bucket).
• Versioning enabled on the standby for rollback safety.
• IAM/API permissions for list/read/write on both sides.
• Bandwidth window for scheduled replication (nightly or hourly).

Step 1: Build the baseline sync job

1. Create a Sync job: Source = primary, Destination = standby.
2. Use one-way Sync to mirror new/updated files; keep deletes if you want strict parity.
3. Add filters for noisy paths (e.g., cache/temp) in the Filtering step.
4. In Advanced Settings, adjust transfer counts and enable checksum comparison if both sides support hashes.
5. Save the job so the same settings apply to every run (Job Manager).

Step 2: Schedule continuous updates

1. In the Job wizard (Step 4: Scheduling, Plus license), enable scheduling for the DR job.
2. Choose cadence: hourly for app data, nightly for archives, and use Simulate to preview upcoming runs.
3. Set retry attempts in Advanced Settings for flaky links.
4. Keep a manual weekly Compare to detect drift early.

Step 3: Verify and monitor

• Use Compare to ensure object counts align before declaring the standby ready.
• Review Job History for failures or retries and rerun the job if a window was missed.
• Keep versioning on the standby so accidental deletes can be recovered.

Step 4: Failover playbook

1. Mount the standby: use Mount Manager to mount the destination remote to a stable path/drive letter.
2. Point workloads to the mounted path or to the standby bucket endpoint.
3. Keep the primary in read-only or offline until incident triage is done.

Tuning tips

• Latency-sensitive apps: lower transfer counts in Advanced Settings and schedule during low traffic.
• Compliance: keep versioning on the standby and export Job History for audits.
• Cost control: exclude staging/temp folders via Filters and apply lifecycle policies on the standby cloud.
• Multi-cloud: run separate jobs if you need two standbys (e.g., R2 + Wasabi) from the same primary.

Troubleshooting checklist

• Mismatched counts: rerun Compare and review Job History for skipped items; confirm versioning is on.
• Permission errors: ensure API keys allow list/read/write on both clouds.
• Restore deletes data: use Copy (not Sync) when bringing data back to production.

Keep your standby warm, tested, and ready so failover is a switch—not a scramble.

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