3-2-1 Backup Rule Storage Calculator

Calculate total storage needed for the 3-2-1 backup rule: 3 copies of data, 2 different media types, 1 offsite. Storage = (primary_data × 3) with dedup/compression reducing actual footprint.

Networking
Algorithms
Binary & Number
Systems
Dev Metrics

IP Subnet Calculator

IP Address
CIDR Prefix
/
Network
192.168.1.0
Broadcast
192.168.1.255
Subnet Mask
255.255.255.0
First Host
192.168.1.1
Last Host
192.168.1.254
Usable Hosts
254
Binary breakdown:
IP: 11000000.10101000.00000001.00000000
Mask: 11111111.11111111.11111111.00000000
Net: 11000000.10101000.00000001.00000000
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How to Use

Enter the values for the scenario you are assessing. Calculate total storage needed for the 3-2-1 backup rule: 3 copies of data, 2 different media types, 1 offsite. Storage = (primary_data × 3) with dedup/compression reducing actual footprint. Use the 3-2-1 backup storage result to inform your calculation.

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