dergachev/backup-services.md

## backup-services.md

      
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              backup-services.md
            
          
    backup services research

I googled around, especially with site:news.ycombinator.com for backup recommendations.
Here are notes on the top hits.
tarsnap

http://www.tarsnap.com/

by prolific HN member; focus on encryption and deduplication
awkward setup of encryption keys
$0.30/GB/month, not including transfer fees
automatic deduplication of identical files "across time and space"
no automatic deletion of old backups (will get expensive fast!)
only prepaid billing, with a few days warning when you run low
after 7 days of negative balance, ACCOUNT DELETED AUTOMATICALLY
commandline API that's like "tar" but automatically rsynced; "no need to worry about versioning"
push based (you have to run cron on every machine)
no real WEB UI, no email notifications on failure or stale backups

rsync.net

http://rsync.net

"backend to rsync", been around for 12 years
special pricing: $0.10/GB/month; requires $60 prepay: http://www.rsync.net/products/git-annex-pricing.html
otherwise $.30/GB/month, with free xfer and 7 daily snapshots.
They charge for max quota, not usage; but you can instantly modify quota via admin panel.
use any rsync compatible tool (eg rsync; duplicity; rdiff-backup; rbackup; etc...)
like tarsnap:

push-based, requiring you run cron and maintain scripts
no real Web UI; no email notifications of failures


cheaper and not prepaid; seems like a better option than Tarsnap

crashplan

http://www.crashplan.com/business/compare.html

very popular desktop app for cloud backups
Java based, so works on Linux, OSX, Windows
big java APP (requires 512MB RAM for service)
web management UI + monitoring, email notifications
Requires GUI management APP, but can run backup service in headless mode ("unsupported")
biz pricing: $10/month/server or $0.32/GB/month;

other services


Strongspace rsync backend with snapshots; $7.50/month for 60GB; free ExpandDrive license. Mac backup app.
Backblaze - $5/month mac/pc backup app; folder based (kind of like Dropbox)

command-line tools

rdiff-backup:

like rsync but with deduplication of data across backups
Duplicity is a wrapper on rdiff-backup with encryption support
support cleaning up old versions:
supports de-duplication; incremental backups; statistics; deleting old snapshots
rBackup is a wrapper on rdiff-backup with extra features (daily/weekly..)
bup - exciting git-like backup tool

BackupPC

http://backuppc.sourceforge.net/info.html

Like Proxmox or Freepbx - a hosted web UI and packages on top of backup scripts.
tons of features (daily/monthly, email notifications)
pull-based (connects to all the servers you specify via SSH)
supposed to work really well...