BackupPC-users

Re: [BackupPC-users] Data migration

2013-12-05 17:19:27
Subject: Re: [BackupPC-users] Data migration
From: Carl Wilhelm Soderstrom <chrome AT real-time DOT com>
To: "absolutely_free AT libero DOT it" <absolutely_free AT libero DOT it>, "General list for user discussion, questions and support" <backuppc-users AT lists.sourceforge DOT net>
Date: Thu, 5 Dec 2013 17:18:15 -0500
On 12/05 06:22 , absolutely_free AT libero DOT it wrote:
> My question is: can I simply copy /var/lib/backuppc content to a new storage?

If you mean to do this, use 'dd'. Any file-level copying mechanism will be
deathly slow due to having to follow all the hardlinks. It might take 4
hours to do with DD what would take a week with tar or cp.

> What would happen if some files from the old storage are not copied? BackupPC 
> can be automatically aware of this and do a full backup of those files?

I think BackupPC will handle this gracefully when the hash for the file is
looked up in the pool. If the hash for the file is not found, a new entry
will be created. 

-- 
Carl Soderstrom
Systems Administrator
Real-Time Enterprises
www.real-time.com

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