The client or organisation this estimate is for. Appears on the exported PDF report cover.
Total size of all data you intend to back up — servers, VMs, NAS, databases, and endpoints — in gigabytes, before any compression.
How much your backup software shrinks raw data. Typical: 20–40% for mixed workloads; up to 60% for databases. Already-compressed files (video, images) gain very little.
Percentage of total data that changes daily — used to size incremental backups. File servers: 1–3%. Databases / transactional systems: 5–15%.
Expected year-over-year growth of your protected dataset. Reserves extra capacity so the appliance doesn't fill up prematurely.
Extra headroom added on top of all calculated storage to cover estimation errors, unexpected spikes, or dedup variability. 20–30% is a safe baseline; increase for volatile workloads.
Number of weekly full backup copies to keep on storage. E.g. 4 = last 4 weekly snapshots (~1 month of weekly restore points).
Number of month-end full backup copies to retain. E.g. 12 = one year of monthly restore points — useful for compliance and auditing requirements.
Long-term annual archive copies. Common in regulated industries requiring multi-year data retention (e.g. 3 = three years of year-end archives).
How many days of daily incremental backups to keep. Each day captures only changed data. E.g. 30 = last 30 days of daily change history for granular file recovery.
Extra storage added to cover how much your data will grow over the next year. Calculated as your backup sub-total × Annual Growth %. For example, if sub-total is 2,000 GB and growth is 20%, this adds 400 GB so your appliance doesn't run out of space as your data expands.