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howto:backup 2010/08/17 16:09 howto:backup 2017/09/06 18:38 current
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-====== HOWTO Backup ======+====== HOWTO Backup ======
This is a step-by-step tutorial on how to set up your DNS-323 for backup.  The contents were copied from the following threads: This is a step-by-step tutorial on how to set up your DNS-323 for backup.  The contents were copied from the following threads:
-  * [[http://forum.dsmg600.info/t1150-Tutorial%3A-Backup-Everything-from-once-night.html|Tutorial: Backup Everything from Vol A to Vol B once a night by Chumby]] +  * [[http://dns323.kood.org/forum/t1150-Tutorial%3A-Backup-Everything-from-once-night.html|Tutorial: Backup Everything from Vol A to Vol B once a night by Chumby]] 
-  * [[http://forum.dsmg600.info/t2125-DNS-323-Rsync-Time-Machine%21.html|DNS-323 Rsync Time Machine! by raid123]]+  * [[http://dns323.kood.org/forum/t2125-DNS-323-Rsync-Time-Machine%21.html|DNS-323 Rsync Time Machine! by raid123]] 
 +  * DNS-323 Online Backup service announcement. 
 + 
 +===== How To Backup the DNS-323 Online ===== 
 + 
 +With the release of firmware v1.09, an integrated online backup service was added to DNS-323. 
 + 
 +The site [[http://dlink.ctera.com]] contains setup information, including a video walk-through, features and pricing. You can also register for the service, and there is a 30-day free trial. The service includes the following features:  
 + 
 +  * Automatically back up your DNS-323 online 
 +  * Restore lost data using a Web browser 
 +  * Recover previous versions of your files 
 +  * No PC software installation required 
 + 
 +The DNS-323 Online Backup Service uses block-level incremental backup with data compression and deduplication, for conserving Internet connection bandwidth. 
 + 
===== How To Back Up From Drive A To Drive B Once A Night ===== ===== How To Back Up From Drive A To Drive B Once A Night =====
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When your scheduled time arrives, both HD lights on the dns323 start flashing away. Everything is working fine!  Enjoy hassle free backups from now on! When your scheduled time arrives, both HD lights on the dns323 start flashing away. Everything is working fine!  Enjoy hassle free backups from now on!
 +
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In a nutshell, this is a way of using rsync's hard link functionality to make a full backup, but creating hard links and saving space if the file already existed in the previous backup.  The way hard links work, for those of you who aren't familiar, is like a ref-counting system where multiple files share the actual data.  Until all hard links are deleted, the file will continue to exist. In a nutshell, this is a way of using rsync's hard link functionality to make a full backup, but creating hard links and saving space if the file already existed in the previous backup.  The way hard links work, for those of you who aren't familiar, is like a ref-counting system where multiple files share the actual data.  Until all hard links are deleted, the file will continue to exist.
-This tutorial assumes you have already set up backup from drive A to drive B above. +The script checks for the existence of the previous backup by looking for the symbolic link named 'current' which points to the last backup.
- +
- +
- +
- +
- +
==== Step 1: Create snapshot.sh ==== ==== Step 1: Create snapshot.sh ====
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mkdir $dstpath/$date mkdir $dstpath/$date
-$ffppath/bin/rsync -avx --link-dest=$dstpath/current $srcpath $dstpath/$date > $ffppath/log/snapshot.log 2>&1+$ffppath/bin/rsync -avx --ignore-errors --link-dest=$dstpath/current $srcpath $dstpath/$date > $ffppath/log/snapshot.log 2>&1
var=`ls -1A $dstpath/$date | wc -l` var=`ls -1A $dstpath/$date | wc -l`
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-==== External Links ==== 
-* [[http://mackeeper.zeobit.com/mac-recovery-software|Mac Data Recovery Software]] 

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