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Backup & Recovery

Arq Backup

Arq Backup is a simple Mac and Windows app that quietly makes automatic copies of the files on your computer. It works like a personal safety net that keeps your photos, documents, and important stuff safe even if your laptop crashes or gets stolen. Every time you add or change a file, Arq quietly sends an encrypted copy to cheap cloud storage without you having to think about it. It uses S3-compatible object storage as its super-reliable digital warehouse, storing your files in small encrypted pieces that only you can unlock. This approach gives you fast backups, easy version history, and rock-solid protection at a fraction of the cost of other backup services.

Connection / Setup

  1. Create an account and log in to DiskSpace
  2. Click I'm ready to set up my storage
  3. Enter Bucket Name following the instructions
  4. Click Create Bucket and wait for it to be generated
  5. Find your Endpoint URL, Access Key, and Secret Key in the S3 Client Configuration section for use below

Connecting Arq Backup to DiskSpace.sh

DiskSpace.sh is a fully S3-compatible object storage service. Follow the steps below to configure Arq Backup using path-style requests.

Connection Steps
  1. Open Arq Backup and click New Backup Plan or edit an existing plan.
  2. Select S3-Compatible as the storage destination.
  3. Enter the following connection details:
Endpoint URL:
https://s3.diskspace.sh
Access Key:
Enter the Access Key provided by DiskSpace.sh
Secret Key:
Enter the Secret Key provided by DiskSpace.sh
Region:
Leave empty or use us-east-1
Bucket:
Enter your DiskSpace.sh bucket name
Important: Path-Style Requests
DiskSpace.sh requires path-style URLs (not virtual-hosted style). Arq Backup should automatically use the correct format when you enter the endpoint above. The resulting URL format will look like this: 
https://s3.diskspace.sh/your-bucket-name/folder/
Example Configuration
Endpoint: https://s3.diskspace.sh
Access Key: AKIAXXXXXXXXXXXXXXXX
Secret Key: [your secret key]
Region: us-east-1 (or leave blank)
Bucket: my-backup-bucket
Troubleshooting
  • If Arq shows a connection error, verify you are using https://s3.diskspace.sh (not s3.diskspace.sh without protocol).
  • Ensure the bucket name is correct and you have read/write permissions.
  • Try setting Region to us-east-1 if leaving it blank causes issues.
  • Confirm that path-style requests are enabled in Arq (most recent versions handle this automatically when using a custom endpoint).
  • Check that your firewall or network allows outbound HTTPS traffic to s3.diskspace.sh.
DiskSpace.sh S3 Connection Guide for Arq Backup • Path-style API required