VCS

Research work

P2P-Base (recent)

Coin Based Storage

Minor products/projects

File Synching Software

Cloud Services

Other P2P

File Systems

Cloud Services

CMS/DAM

Context Storage

Network FS

Other

SOS

git

mercurial

CVS

Subversion

OceanStore/Pond

Self-certifying file system

PAST

IPFS

Perkeep

MaidSAFE/Safenet - with Safecoin

Tahoe-LAFS

Keybase FS

FileCoin

SIA

StorJ

Ethereum's Swarm

libchop

Peergos

Upspin

git-annex

synchthing

RSync

Dropbox

Google Drive

OneDrive

Creative Cloud

Resilio Sync (prev was BitSync)

ext(2/3/4)

ZFS

FAT

AWS S3

Rackspace COS

Alfresco

Drupal

Joomla!

Gaia FS

WinFS

Semantic FS

quFiles

AFS

NFS

SMB/CIFS

Google File System

Hadoop

Apple Time Machine

OpenSource

Y

Y

Y

Y, but URL not available

Y

Y

?

Y

N

Y

Y

Y

Y

Y

N

N

N

N

N

Y

N

N

N

Y

N

Source Code

https://github.com/stacs-srg/sos

https://www.mercurial-scm.org/repo/hg

https://github.com/ipfs/go-ipfs

https://github.com/perkeep/perkeep

https://github.com/tahoe-lafs/tahoe-lafs

https://github.com/ethereum/go-ethereum/tree/swarm/swarm

https://github.com/gitGNU/gnu_libchop

https://github.com/Peergos/Peergos

https://github.com/syncthing

Website

https://stacs-srg.github.io/sos/

https://git-scm.com/

https://www.mercurial-scm.org/

https://ipfs.io/

https://perkeep.org/

https://tahoe-lafs.org/

https://syncthing.net/

Documentation

https://ipfs.io/docs/

https://perkeep.org/doc/

https://maidsafe.net/docs/Safe%20Network%20Primer.pdf

http://tahoe-lafs.readthedocs.io/

https://github.com/ethersphere/swarm

https://docs.syncthing.net/

More documentation

https://github.com/ipfs/specs

Notes

based on IPFS

https://ethereum.stackexchange.com/questions/2138/what-is-the-difference-between-swarm-and-ipfs

based on IPFS

Distributed Model

distributed

distributed

distributed

client-server

client-server

distributed

distributed

distributed

distributed P2P

client-server

Location Abstraction

Unstructured P2P (but can support DHT)

ndoes specified in configuration

DHT - Tapestry

DHT - Pastry

DHT - Kademlia

DHT

User ad-hoc setup of nodes

Data Type

Immutable

Immutable + staging phase (mutable)

Immutable + staging phase (mutable)

read-only data (immutable) and changeable data (mutable)

immutable

mutable and immutable

immutable

Data representation

atoms

blobs, content-addressed

block

file and bytes (collection of blobs) blob types

De-duplication

Y

Y

Y

Y

Y

Y

Y (with convergence secret)

Y

Y (per user)

N

N

Y

Object Sharding

Not by default

Y

Y

Packing

N

Y

Y (via the file revlog format)

Compression

Y

Object ID

Multiformat

SHA-1 (migrating to SHA-256)

Numbers (local to repo) and SHA-1 (for revlog, < 0.9v) and SHA-256 (for revlogNG, >= 0.9)

numbers

numbers

SHA-1 or hash(name + pub_key) for mutable data

Multiformat

SHA-256 (with blobref format)

data integrity

Y

Y

Y

Y

Y

Y

Y

erasure coding

via contexts

N

N

N

N

active data and archival data

Y

Concurrency Model

Should be supported at the application level

Merge

Merge

Merge

Merge or lock

data sharing semantics

immutable

immutable

immutable

immutable

immutable

immutable

immutable

immutable

immutable

Data replication

via contexts

manually

Blockchain

N

N

N

N

N

N

N

N

N

Y

N

N

Y

Y

Y

Y

N

N

N

N

N

N

N

N

N

N

N

N

N

N

N

N

N

N

N

N

N

N

N

N

N

N

Links

Y (by GUID refs)

Y (see IPLD)

Y (symlink)

Data Aggregation

Compounds

Tree

manifest revlog

list (ordered), tree

directory

Metadata support

with notes and/or commits

Versioning support

Y

Y

Y

Y

Y

Y

Y

Y

N

N

N

N

N

N

N

N

N

N

Y

Diff storage

Snapshot: via de-duplication of small blobs

deltas (neighbour deltas are merged from time to time to avoid too many deltas being applied)

deltas

deltas or snapshot

Network Protocol

http

gif (w/wo ssh), HTTP, HTTPS, rsync, email, bundles

custom, HTTP, email

pserver, ssh

svn (w/wo ssh), HTTP, SSL (with WebDAV)

Bitswap, HTTP

API

REST

REST - https://ipfs.io/docs/api/

Y

Y

Y

REST, SOAP

Signed requests

Y

Y

Y

User model

Y

Y (committed/authort)

?

Y

Y

Y

Y

Data protection/encryption

Y

N

N

N

N

Y

Y

Granular Protection

Y

N

N

N

N

Y

Capabilities

N

N

Y

Data/Metadata signing

Automatic File Classification

via contexts

Y (w contexts)

Y

N

N

N

N

N

N

Smart folders

Y

Y

Y

Y

N

N

N

N

N

N

Automatic File Management

via contexts

Useful links

https://en.wikipedia.org/wiki/Comparison_of_file_hosting_services

https://en.wikipedia.org/wiki/Comparison_of_version_control_software

https://en.wikipedia.org/wiki/Comparison_of_file_synchronization_software