From: Pavel Machek <pavel@ucw.cz>
To: David Woodhouse <dwmw2@infradead.org>
Cc: Boris Brezillon <boris.brezillon@free-electrons.com>,
Hans de Goede <hdegoede@redhat.com>,
Ricard Wanderlof <ricard.wanderlof@axis.com>,
Tejun Heo <tj@kernel.org>,
linux-scsi@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-ide@vger.kernel.org, linux-mtd@lists.infradead.org,
Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Subject: Re: Race to power off harming SATA SSDs
Date: Mon, 8 May 2017 23:36:05 +0200 [thread overview]
Message-ID: <20170508213605.GA12687@amd> (raw)
In-Reply-To: <1494258011.5407.18.camel@infradead.org>
On Mon 2017-05-08 16:40:11, David Woodhouse wrote:
> On Mon, 2017-05-08 at 13:50 +0200, Boris Brezillon wrote:
> > On Mon, 08 May 2017 11:13:10 +0100
> > David Woodhouse <dwmw2@infradead.org> wrote:
> >
> > >
> > > On Mon, 2017-05-08 at 11:09 +0200, Hans de Goede wrote:
> > > >
> > > > You're forgetting that the SSD itself (this thread is about SSDs) also has
> > > > a major software component which is doing housekeeping all the time, so even
> > > > if the main CPU gets reset the SSD's controller may still happily be erasing
> > > > blocks.
> > > We're not really talking about SSDs at all any more; we're talking
> > > about real flash with real maintainable software.
> >
> > It's probably a good sign that this new discussion should take place in
> > a different thread :-).
>
> Well, maybe. But it was a silly thread in the first place. SATA SSDs
> aren't *expected* to be reliable.
Citation needed?
I'm pretty sure SATA SSDs are expected to be reliable, up to maximum
amount of gigabytes written (specified by manufacturer), as long as
you don't cut power without warning.
Pavel
--
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
next prev parent reply other threads:[~2017-05-08 21:36 UTC|newest]
Thread overview: 39+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-04-10 23:21 Race to power off harming SATA SSDs Henrique de Moraes Holschuh
2017-04-10 23:34 ` Bart Van Assche
2017-04-10 23:50 ` Henrique de Moraes Holschuh
2017-04-10 23:49 ` sd: wait for slow devices on shutdown path Henrique de Moraes Holschuh
2017-04-10 23:52 ` Race to power off harming SATA SSDs Tejun Heo
2017-04-10 23:57 ` James Bottomley
2017-04-11 2:02 ` Henrique de Moraes Holschuh
2017-04-11 1:26 ` Henrique de Moraes Holschuh
2017-04-11 10:37 ` Martin Steigerwald
2017-04-11 14:31 ` Henrique de Moraes Holschuh
2017-04-12 7:47 ` Martin Steigerwald
2017-05-07 20:40 ` Pavel Machek
2017-05-08 7:21 ` David Woodhouse
2017-05-08 7:38 ` Ricard Wanderlof
2017-05-08 8:13 ` David Woodhouse
2017-05-08 8:36 ` Ricard Wanderlof
2017-05-08 8:54 ` David Woodhouse
2017-05-08 9:06 ` Ricard Wanderlof
2017-05-08 9:09 ` Hans de Goede
2017-05-08 10:13 ` David Woodhouse
2017-05-08 11:50 ` Boris Brezillon
2017-05-08 15:40 ` David Woodhouse
2017-05-08 21:36 ` Pavel Machek [this message]
2017-05-08 16:43 ` Pavel Machek
2017-05-08 17:43 ` Tejun Heo
2017-05-08 18:56 ` Pavel Machek
2017-05-08 19:04 ` Tejun Heo
2017-05-08 18:29 ` Atlant Schmidt
2017-05-08 10:12 ` David Woodhouse
2017-05-08 9:28 ` Pavel Machek
2017-05-08 9:34 ` David Woodhouse
2017-05-08 10:49 ` Pavel Machek
2017-05-08 11:06 ` Richard Weinberger
2017-05-08 11:48 ` Boris Brezillon
2017-05-08 11:55 ` Boris Brezillon
2017-05-08 12:13 ` Richard Weinberger
2017-05-08 11:09 ` David Woodhouse
2017-05-08 12:32 ` Pavel Machek
2017-05-08 9:51 ` Richard Weinberger
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20170508213605.GA12687@amd \
--to=pavel@ucw.cz \
--cc=boris.brezillon@free-electrons.com \
--cc=dwmw2@infradead.org \
--cc=hdegoede@redhat.com \
--cc=hmh@hmh.eng.br \
--cc=linux-ide@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mtd@lists.infradead.org \
--cc=linux-scsi@vger.kernel.org \
--cc=ricard.wanderlof@axis.com \
--cc=tj@kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox