In ServiceNow, "Clone Rollback" and "Restore from Backup" are ways to go back to an earlier state, but they work differently:
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Clone Rollback:
- What it does: It makes a copy of your current system as it was at a specific time in the past and then uses this copy to replace your current system.
- Why it's used: It's helpful when you can't afford downtime because you can prepare the copy beforehand and quickly switch to it.
- Pros: Less downtime, less risk of losing data, and you can test the process before using it.
- Cons: It needs extra resources to maintain the copy, might be tricky to set up, and may not work for all systems.
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Restore from Backup:
- What it does: It recovers your system using a backup copy of your data.
- Why it's used: It's useful for recovering from various issues like data corruption, hardware problems, or accidental deletions.
- Pros: Can recover from many types of problems, and you can keep backups in a safe place.
- Cons: It might mean a lot of downtime, especially for big systems, and you need to do regular backups to keep your data safe.
