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Date: Mon, 01 Apr 2002 15:52:33 -0500
From: Tony Lawrence <tony@aplawrence.com>
Subject: Backup across the network, differential backups


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Why I don't like Differential backups: 
/Unixart/diffback.html



Network backups:














While attractive in principle, the time element isn't all that good and 
we also lose several important capabilities:



1. the ability to take media off site.
2. the ability to restore completely to a fresh drive from the media 
without reinstalling the OS.
3. "deep" backup stretching as far back in time as we need.  You can 
simulate that with a large enough drive at the receiving end, but then 
all your backups are in one mechanical device: if that device fails, you 
lose all backup.



Removable media is still the intelligent choice for backup and will 
remain so until solid state, non-volatile disk drives are common, and 
I'm not even sure if it's a bad idea then.


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-- 
Tony Lawrence
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