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Need to determine the storage capacity needed for packet capture forensic analysis? This handy calculator converts bps and utilization into Gigabytes(GB) and Terabytes(TB) of storage. ( Calculates for 1 hour - GB, 24 hours - TB, 4 days - TB and 7 days - TB of storage).

The calculator uses average bandwidth utilization and assume full duplex send receive traffic at that rate of utilization.

Obviously, the system deployed to capture must support the capture and write to disk rates calculated.

 

Percent Utilization Factor Speed bps  
( two digit number for percentage)
1024 GB = 1 Terabyte
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Note: The calculator computes storage as an operating system such as Windows would calculate.

Sample Storage Requirements

Storage Required in Gigabytes(GB) for packet capture with 50% average utilization of a T1 Connection:

0.65 GB-1 Hour
15.53 GB-24 Hours
62.12 GB-4 days
108.71 GB-7 Days
Storage Required in Gigabytes(GB) for packet capture with 50% average utilization of a T3 Connection:

18.02 GB-1 Hour
432.51 GB-24 Hours
1730.02 GB-4 days
3027.54 GB-7 Days
Storage Required in Gigabytes(GB) for packet capture with 50% average utilization of a 100 Mbps Connection:

41.91 GB-1 Hour
1005.83 GB-24 Hours
4023.31 GB-4 days
7040.8 GB-7 Days
Storage Required in Gigabytes(GB) for packet capture with 50% average utilization of a 1 Gbps Connection:

419.1 GB-1 Hour
10058.28 GB-24 Hours
40233.14 GB-4 days
70407.99 GB-7 Days