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Off-site backup
Off-site backup для компаній: copy outside office, ransomware і restore tests
Off-site backup is useful only when we can answer: what do we restore, how fast and from which point in time. File copy alone is not continuity strategy.
Коротка відповідь
Off-site backup is useful only when we can answer: what do we restore, how fast and from which point in time. File copy alone is not continuity strategy.
3-2-1 without slogan
In practice describe data sources, local copy, off-site copy, retention, restore test і access procedure when primary site is down.
Ransomware і isolation
Off-site backup should reduce risk that one mistake, account or admin network deletes or encrypts all copies.
Databases, mail і files
SQL database, VM, mailbox and document repository restore differently. Each data type needs its own plan.
Backup monitoring
Backup without alerts is a promise. Need job reports, capacity, increments, duration, errors, restore tests і periodic review.
Практичний чеклист
- List critical systems and assign RPO/RTO plus business owner.
- Choose backup technology for VM, databases, mail, files і SaaS applications.
- Define short retention, long retention, GFS, encryption, account separation і emergency access.
- Test restore at least once for every data type and after major changes.
- Treat backup report like production system: alerts, capacity, trends і review.
Найчастіші питання
Does off-site backup protect against ransomware?
It helps if separated, with retention, limited accounts, monitoring і tests. Copy in same admin domain may not be enough.
Must off-site backup be in another city?
Not always, but it must be outside main location and outside same operational risk. For DR consider second location scenario.
What is more important: capacity or restore?
Restore. Capacity is cost, but backup value appears during recovery.