Update README.md

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gilbertchen
2016-05-18 15:11:30 -04:00
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## Overview
Duplicacy supports major cloud storage providers (Amazon S3, Google Cloud Storage, Microsoft Azure, Dropbox, and BackBlaze) and offers all essential features of a modern backup tool:
Duplicacy supports major cloud storage providers (Amazon S3, Google Cloud Storage, Microsoft Azure, Dropbox, and Backblaze) and offers all essential features of a modern backup tool:
* Incremental backup: only back up what has been changed
* Full snapshot : although each backup is incremental, it must behave like a full snapshot for easy restore and deletion
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You'll need to input the access key once prompted.
#### BackBlaze
#### Backblaze
```
Storage URL: b2://bucket
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You'll need to input the account id and application key.
BackBlaze offers perhaps the least expensive cloud storage at 0.5 cent per GB per month. Unfortunately their API does not support file renaming, so the -exclusive option is required when pruning old backups. This means concurrent access and deletion can't be permitted at the same time.
Backblaze offers perhaps the least expensive cloud storage at 0.5 cent per GB per month. Unfortunately their API does not support file renaming, so the -exclusive option is required when pruning old backups. This means concurrent access and deletion can't be permitted at the same time.
## Comparison with Other Backup Tools
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| Encryption | Yes | Yes | Yes | Yes | Yes | **Yes** |
| Deletion | No | No | Yes | Yes | No | **Yes** |
| Concurrent Access | No | No | Exclusive locking | Not recommended | Exclusive locking | **Lock-free** |
| Cloud Support | Extensive | No | No | No | S3 only | **S3, GCS, Azure, Dropbox, BackBlaze**|
| Cloud Support | Extensive | No | No | No | S3 only | **S3, GCS, Azure, Dropbox, Backblaze**|
| Snapshot Migration | No | No | No | No | No | **Yes** |