# Questions on Network usage

#### What is the capacity of the network right now? How many total petabytes can the network hold?

There are currently cca. 15k nodes in the network. With the current amount of data, that means there are 1024 units called "neighborhoods" that can hold cca. 20 GB each (4 million chunks of 4 KB ~ 20 GB), in total around 20 TB (1024 x 20GB). Tha is not the current limit of the networks, as it can "enlarge" itself when capacity is met, meaning it could double 2048 neighborhoods that could hold around 40 TB of data.

With the current distribution of nodes within the network, further doubling of the network is not possible, as some neighborhoods would be empty (leading to loss of data and possibly other issues).

*Note: The capacity of storage for the network can be increased by increasing the number of nodes (and placing them in appropriate neighborhoods) and/or increasing the total amount one node can store (which requires a new version of node software and some other changes). If each node could store, for example, 1 TB of data (instead of 20 GB), the total capacity at current number of neighborhoods would be 1024 x 1 TB = 1 PB.*

#### How much was there a month ago, two months ago, half a year ago, and a year ago?Exactly the same question regarding the actual amount of data that is stored on the network?

There is no historical records for amount of data on the network in the past. Currently, the amount of storage on the network can be estimated to be roughly around 15 TB.

#### How many petabytes downloaded for storage a year ago and now?

There are no estimates on downloaded data, and I do not know if it is possible to get reliable estimates of the downloads due to the decentralized nature of the data would flow.

#### What percentage of available network capacity is used for storage by actual data?

Around 75%. Though as mentioned, the network capacity can automatically double when needed, so the taken capacity is always between around 50-95%. Depending on how you calculate total capacity.

#### Is there a limit to the amount of data uploaded by one user in one transaction?

I do not believe there is a reachable theoretical limit, though might be limitations with the amount of resources the uploading node has (RAM mostly, IMO).