Bacula-users

Re: [Bacula-users] shoe-shining? or normal operation?

2014-03-24 03:01:14
Subject: Re: [Bacula-users] shoe-shining? or normal operation?
From: Kern Sibbald <kern AT sibbald DOT com>
To: Dan Langille <dan AT langille DOT org>, bacula-users <bacula-users AT lists.sourceforge DOT net>
Date: Mon, 24 Mar 2014 07:56:09 +0100

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Hello Dan,

Yes, this sounds normal given the Copy/Migrate implementation (algorithm) used in Bacula 5.2.x and below.  Version 7.0.0 has an entirely new implementation for Copy/Migrate and possibly I will do the same later for VirtualFull.  I expect that there will be some significant improvements, so please save your tests and then re-run them with 7.0.0.  I will be very interested to see what they show.

Best regards,
Kern

On 03/23/2014 09:48 PM, Dan Langille wrote:
> I have a DLT-8000 tape drive which is running a disk-to-tape backup right now.
>
> Such a drive does only 5MB/s, so my hard drives are never stretched to the limit.
>
> The tape repeatedly does a stop, reverse, stop, forward, roughly every 15 seconds. This change takes about a second.
>
> Does this sound normal to you?
>
>
>
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------------------------------------------------------------------------------
Learn Graph Databases - Download FREE O'Reilly Book
"Graph Databases" is the definitive new guide to graph databases and their
applications. Written by three acclaimed leaders in the field,
this first edition is now available. Download your free book today!
http://p.sf.net/sfu/13534_NeoTech
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