Re: F26 System Wide Change: Enable TRIM pass down to encrypted disks

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On Monday, 16 January 2017 at 16:32, Jan Kurik wrote:
[...]
> == Detailed Description ==
> User base of Fedora distribution with SSDs grows steadily and while
> the argument for kernel default setting not to enable the discard is
> still strong one it doesn't change the fact that vast majority of
> users (with SSDs) doesn't want to sacrifice better performance of
> drive with discard/trim enabled for the sake of secrecy.

How do you know that it's a vast majority?

[...]
> For LUKS1 metadata format we don't have a space to store the new
> default in metadata and therefore we can't flip the default for new
> LUKS1 devices being formated via libcryptsetup or cryptsetup utility.
> 
> Changing the kernel default is of the table due to risk of data
                                   ^
I think you missed an 'f' here.----|

> corruption with some TrueCrypt configurations involving hidden
> volumes.
> 
> For rotational devices the cost of enabled discard is negligible

How have you measured that? What is the exact value?

Regards,
Dominik
-- 
Fedora http://fedoraproject.org/wiki/User:Rathann
RPMFusion http://rpmfusion.org
"Faith manages."
        -- Delenn to Lennier in Babylon 5:"Confessions and Lamentations"
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