Technically, there are tools to restore the hardlinks, e.g. do the
deduplication on the file system. They are called fdupes and jdupes, one
of them is rewritten modern implementation. TL;DR which one is the
newer, I beileve F does.

But obviously, this is relevant to bpc v3

Jan

Dne 04.02.2019 v 16:37 Les Mikesell napsal(a):
> On Mon, Feb 4, 2019 at 3:38 AM Arsalan Naeem <naeemarsa...@gmail.com> wrote:
>> Recently I experimented with host migration from one backuppc to another 
>> fresh install. I rsynced the hosts folder in /var/lib/BackupPC/pc/< Host > 
>> to a new instance. After adding the host via the web GUI. I could see all 
>> the incremental/full backup history. I was able to download archive and 
>> restore it to a server. I have done this many times with 100% success rate 
>> with other hosts.
>>
>> I wanted to know is this a safe method off migration and cold storage backup 
>> option, also how is this process working, I wasn't able to find anything in 
>> the wiki regarding migrations other then TarCopy.
> With backuppc v3, copying a host directory works as far as having a
> copy of the content goes but you lose the de-duplication of storage
> for subsequent runs.  The problem with it is that you lose the
> hardlinks into the pool/cpool directory that next backup run needs to
> be able to match files and make new hardlinks. So you'll get a 2nd
> copy of each file in your archive until the copied backups expire and
> are deleted.
>


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