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Date:      Thu, 8 Mar 2018 07:26:11 -0800
From:      bob prohaska <fbsd@www.zefox.net>
To:        ticso@cicely.de
Cc:        John <tech-lists@zyxst.net>, freebsd-fs@freebsd.org, freebsd-arm@freebsd.org, freebsd-current@freebsd.org, bob prohaska <fbsd@www.zefox.net>
Subject:   Re: best settings for usb2 and attached disks, and sdcards
Message-ID:  <20180308152611.GA61027@www.zefox.net>
In-Reply-To: <20180308094636.GA80981@cicely7.cicely.de>
References:  <1520403325.3513270.1294320744.0B1DE142@webmail.messagingengine.com> <20180308094636.GA80981@cicely7.cicely.de>

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On Thu, Mar 08, 2018 at 10:46:36AM +0100, Bernd Walter wrote:
> 
> I'm currently very pleased with the SanDisk Extreme Plus micro SD
> cards.
> They are quite expensive, but behave way better with random writes.
> 
I don't think I've seen Sandisk Extreme Plus devices, how do they differ
from "ordinary" Sandisk extreme devices? I think there is a "Pro" version,
is that the same thing?

> Event better in random write performance are the SanDisk Extreme
> USB sticks.
> Also quite expensive though and quite big.
> 
Likewise, my experiece, spread over 4 RPi2's and 2 RPi3's, has been good.

> I can't tell, however, if they are better in case of power loss
> related data corruption.
> 

Never done a systematic test, but accidental unplugs and power cycles
after a crash have never caused problems fsck -f won't fix.

hth,

bob prohaska




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