[CentOS] [OT] Bacula offsite replication

Thu Jul 2 13:47:29 UTC 2020
Leroy Tennison <leroy at datavoiceint.com>

Depending on the definition of offsite, you have a fundamental problem: either invest the time/effort compressing or take extra bandwidth, which is less costly?  Hopefully a delta transfer makes sense in your situation and should save far more than compression would once the original copy is offsite.

From: CentOS <centos-bounces at centos.org> on behalf of Valeri Galtsev <galtsev at kicp.uchicago.edu>
Sent: Thursday, July 2, 2020 8:02 AM
To: centos at centos.org <centos at centos.org>
Subject: [EXTERNAL] Re: [CentOS] [OT] Bacula offsite replication

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Leroy Tennison
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On 7/2/20 3:22 AM, Alessandro Baggi wrote:
> Il 01/07/20 17:13, Leroy Tennison ha scritto:
>> I realize this shouldn't happen, the file is a tgz and isn't being
>> modified while being transmitted.  This has happened maybe three times
>> this year and unfortunately I've just had to deal with it rather than
>> invest the time to do the research.
>> Harriscomputer
>> Leroy Tennison
>> Network Information/Cyber Security Sp
> Hi Leroy,
> I think that in my case I could not use a tgz archive. I'm speaking
> about full backups that reach 600/700GiB, compressing them and then
> rsync them could take so much time that it will be useless.

unless you use tape (of that high capacity), it is advantageous to
restrict volume size to, say, 50GB. Then when you restore, search for
specific files will be faster. And it will help your backup volumes
transfers as well.


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Valeri Galtsev
Sr System Administrator
Department of Astronomy and Astrophysics
Kavli Institute for Cosmological Physics
University of Chicago
Phone: 773-702-4247
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