Re: 2.6 ETA?

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On 01/07/2018 21:16, mannino wrote:
> On 01.07.2018 23:21, Denis Corbin wrote:
>> So to be precise, I concentrate on crypto upgrade, performance
>> and documentation, for I hope a pre-release phase in September,
>> maybe sooner.
> Uh-huh, looks like about half a year longer. Thanks for the
> information.
> 
> Perhaps a donation may speed up the release?

unfortunately not, the problem is not money, nor will, nor motivation
but time, free time... :-/

> 
>> Which feature do you expect to find in 2.6.x?
> Honestly to me dar is about as complete as I need, and the only
> feature I miss badly is --delta. (Deduplication would be also
> welcome, but more as a convenience than a necessity.) This is
> because in most situations files that I want to backup have their
> mode and other attributes changing pretty randomly which renders
> incremental dar backup useless (identical to full).

Yep, this is ready and tested, so you will have in 2.6.0

> 
> For example, a VMware node has its disks split into a multitude of 
> files. Node snapshots create even more files, and each file can
> take many gigabytes. When a node is running, it's constantly
> refreshing modification times on its disk files (among other
> things) even if it doesn't write to them (but even if it does, it
> only changes portions of those files).

I've observed this too :-)

> 
> This means if you do a dar backup before starting a node, start a
> node, stop it and attempt to do an incremental backup - instead of
> a virtually empty second backup you get it about as large as the
> first one which is extremely space-inefficient, not to mention that
> write speed onto the backup medium may be very poor and would not
> be saturated by encryption and compression running altogether,
> leaving room for other optimizations (namely delta calculation).
> 
> Thus the only way to have a realistic setup with dar is to
> radically reduce the amount of data being stored, and this can only
> be achieved with --delta.
> 

Agreed, so I take not of this and do my best to have it released soon

Regards,
Denis
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