Snapshot VS Backup

When managing your VPS/server in SolusVM 2, you have two protection options: Snapshot and Backup.
They serve different purposes and should be used differently. 

Snapshot (Temporary safety / quick undo)

A snapshot works like a “Save Point” or “Undo button.”

Before you make changes to your server (updates, installs, config edits), you take a snapshot.

If something breaks, you can quickly roll back to the previous working state.

Easy way to understand:

Like editing a document → press Ctrl + Z to undo.

Good for:

  • Testing updates

  • Installing software

  • System changes

  • Short-term rollback

Not good for:

  • Long-term storage

  • Disaster recovery

  • Hardware failure protection

Because:
Snapshots are stored together with the same VM disk.

If the disk crashes → snapshot is gone too.


Backup (Long-term protection / disaster recovery)

A backup is like an insurance copy stored separately.

Even if your server is deleted, hacked, or crashes, you can still restore everything from the backup.

Easy way to understand:

Like saving your files to an external hard drive or cloud backup.

Good for:

  • Server crashes

  • Ransomware/hacking

  • Accidental deletion

  • Full server restore

  • Migration to new server

Best practice:

Always keep regular backups scheduled daily/weekly.

Snapshot vs Backup (SolusVM 2) 


Feature
Snapshot (SolusVM 2)
Backup (SolusVM 2)
Duration
Meant for short-term use (minutes or hours during testing or changes)
Designed for long-term protection (kept for days, weeks, or months)
Dependency
Tied to the same VM disk. If the VM or disk fails, the snapshot may also be lost
Stored separately from the VM, so it remains safe even if the server fails completely
Use Case
Quickly roll back system changes such as updates or configuration edits
Restore full server or files after major issues or data loss
Performance
Keeping snapshots for too long may slow down disk performance and affect server speed
Runs on schedule with minimal impact to server performance
What users can leverage
Acts like an “undo” button — safely test updates or changes and revert instantly if something breaks
Acts like an “insurance copy” — protects your data and allows full recovery anytime
Real-life situation
Before upgrading OS/cPanel, installing software, or modifying settings. If something fails, revert immediately
Server hacked, ransomware attack, accidental deletion, or hardware crash. Restore from backup to recover everything
Recommendation
Delete snapshots after testing or once changes are confirmed stable to avoid performance issues
Keep regular scheduled backups and retain multiple restore points for better protection

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