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Date: Sun, 16 Feb 2020 03:32:03 +0100
From: Arno Wagner <arno@wagner.name>
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References: <20200215195941.7ef400b3@Phenom-II-x6.niklas.com>
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Subject: Re: [dm-crypt] Streaming ciphers
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To: dm-crypt@saout.de

Hi David,

using LUKS should not result in write-amplification.
LUKS uses 512B blocks and just provides an 1:1 mapping.

Regards,
Arno
 

On Sun, Feb 16, 2020 at 01:59:41 CET, David Niklas wrote:
> Hello,
> Today I was helping a poor luser who's Crucial P1 QLC SSD died from
> too many writes. We still don't know what's doing the writing, but he is
> running luks using FDE so write amplification is definitely a
> factor.
> I forget the answer to this so please enlighten me, is there a streaming
> cypher he can use instead of a block cipher? A better option that I
> didn't consider?
> Not that the TCG Opal is to be fully trusted (nor is it available on
> that model), but how does it work with respect to write amplification vs.
> luks?
> 
> Thanks,
> David
> _______________________________________________
> dm-crypt mailing list
> dm-crypt@saout.de
> https://www.saout.de/mailman/listinfo/dm-crypt

-- 
Arno Wagner,     Dr. sc. techn., Dipl. Inform.,    Email: arno@wagner.name
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