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Date:      Tue, 16 Feb 2021 16:05:03 +0300
From:      Artem Kuchin <artem@artem.ru>
To:        Alan Somers <asomers@freebsd.org>
Cc:        freebsd-fs <freebsd-fs@freebsd.org>
Subject:   Re: Simulating bad sectors on file based storage device. How?
Message-ID:  <46b52475-385f-5931-f425-fd546dd5b377@artem.ru>
In-Reply-To: <CAOtMX2jqR6zY8jhx0nN9NTRcG2XDbO-h0xPNVNzuDC8bFtaRYw@mail.gmail.com>
References:  <1c372ed8-f5fb-0637-9cce-e892cb38ed28@artem.ru> <CAOtMX2jqR6zY8jhx0nN9NTRcG2XDbO-h0xPNVNzuDC8bFtaRYw@mail.gmail.com>

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gnope only allows to set probability, but i need an exact block in an 
exact place.

15.02.2021 20:44, Alan Somers пишет:
> If you have SCSI disks, you can inject errors with `sysctl 
> kern.cam.da.0.error_inject`.  If not, you can use gnop(8) to simulate 
> a flaky disk.
>
> On Mon, Feb 15, 2021 at 10:36 AM Artem Kuchin <artem@artem.ru 
> <mailto:artem@artem.ru>> wrote:
>
>     Hello!
>
>     Is there a way to build a file base storage device (for example, file
>     based zfs mirror) and then simulate a bad sector for one of the
>     mirror
>     sides?
>
>     Artem
>
>
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