Backup & Disaster Recovery
Backup is the practice of keeping copies of your data in a separate place. Disaster recovery is the plan that uses those copies to get your systems and business running again after a failure, theft, fire or cyber attack.
What it means
A backup is a copy of your data stored somewhere other than where the original lives. Disaster recovery is everything around it: who decides to restore, from which copy, onto which machine, and how long the business can wait. Many owners have backups. Far fewer have ever tried to restore from one.
The rules worth remembering
- 3-2-1: keep three copies, on two kinds of storage, with one stored off-site.
- Automatic, not manual: a backup that depends on someone remembering will eventually be missed.
- Test the restore: a backup you have never restored is a hope, not a safeguard.
- Two numbers: how much recent work you can afford to lose, and how long you can afford to be down.
Why it matters for your business
Data loss comes from ordinary events: a failed disk, an accidental deletion, a stolen laptop, a monsoon flood in the ground-floor office, or ransomware that locks every file. When records of fees, stock or customer dues disappear, the real cost is not the software but the weeks spent reconstructing them from memory and paper.
An example
A printing press in Sivakasi keeps job orders and customer ledgers on a single desktop in the cash cabin. A power surge damages the disk during a busy season, and the only backup is a pen drive last updated four months earlier. Four months of orders and dues must be rebuilt from delivery challans. Had the press used automatic nightly copies in cloud storage, the restore would have taken an afternoon.
What we advise
Managed database services from the major cloud providers usually offer automatic backups, but someone must switch them on, check them and rehearse a restore. On self-managed servers such as a VPS, backups need their own set-up, and choices about cloud hosting decide what is available. VS Tech Builders can scope backups and a restore test into a project or a maintenance retainer, and the website maintenance cost guide shows what ongoing care costs. For a custom ERP, the records are the business, so recovery deserves a line in the plan from the first meeting.
Common questions
Is Google Drive or a pen drive enough as a backup?
It is better than nothing but weak. A pen drive can be lost, stolen or corrupted along with the computer, and manual copying gets skipped. Cloud storage helps, yet syncing is not the same as backing up, because a deleted or encrypted file can spread its damage everywhere. Use an automatic, versioned backup that keeps older copies, and test a restore.
What do RPO and RTO mean in plain language?
RPO, the recovery point objective, is how much recent data you can afford to lose, for example one day of entries. RTO, the recovery time objective, is how long you can afford to be offline, for example four hours. Your answers decide how often backups run and how much you spend. A pharmacy billing counter needs tighter numbers than an archive of old reports.
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