From mboxrd@z Thu Jan  1 00:00:00 1970
From: Matt Garman <matthew.garman@gmail.com>
Subject: Re: kernel checksumming performance vs actual raid device performance
Date: Tue, 23 Aug 2016 09:34:14 -0500
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To: Doug Dumitru <doug@easyco.com>
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On Tue, Aug 16, 2016 at 5:43 PM, Doug Dumitru <doug@easyco.com> wrote:
> One last thing I would highly recommend is:
>
> Secure erase the replacement disk before rebuilding onto it.
>
> If the replacement disk is "pre conditioned" with random writes, even if
> very slowly, this will lower the write performance of the disk during the
> rebuild.

Does that also apply to brand-new disks from the manufacturer?

I.e., should we just always do a secure erase, or sometimes depending
on how the drive was sourced?