From: Atlant Schmidt <aschmidt@dekaresearch.com>
To: Pavel Machek <pavel@ucw.cz>,
Boris Brezillon <boris.brezillon@free-electrons.com>
Cc: Ricard Wanderlof <ricard.wanderlof@axis.com>,
"linux-scsi@vger.kernel.org" <linux-scsi@vger.kernel.org>,
"linux-ide@vger.kernel.org" <linux-ide@vger.kernel.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
Hans de Goede <hdegoede@redhat.com>,
"linux-mtd@lists.infradead.org" <linux-mtd@lists.infradead.org>,
"Henrique de Moraes Holschuh" <hmh@hmh.eng.br>,
Tejun Heo <tj@kernel.org>, David Woodhouse <dwmw2@infradead.org>
Subject: RE: Race to power off harming SATA SSDs
Date: Mon, 8 May 2017 18:29:53 +0000 [thread overview]
Message-ID: <ec4494d0b0d348c7a2e90242b67fa5a4@DEKAEXCHANGE13.deka.local> (raw)
In-Reply-To: <20170508164322.GA9781@amd>
> Well, you are right.. and I'm responsible.
>
> What I was trying to point out was that storage people try to treat SSDs as HDDs...
> and SSDs are very different. Harddrives mostly survive powerfails (with emergency
> parking), while it is very, very difficult to make SSD survive random powerfail,
> and we have to make sure we always powerdown SSDs "cleanly".
It all depends on the class of SSD that we're discussing.
"Enterprise class" SSDs will often use either ultracapacitors
or batteries to allow them to successfully complete all of
the necessary operations upon a power cut.
This e-mail and the information, including any attachments it contains, are intended to be a confidential communication only to the person or entity to whom it is addressed and may contain information that is privileged. If the reader of this message is not the intended recipient, you are hereby notified that any dissemination, distribution or copying of this communication is strictly prohibited. If you have received this communication in error, please immediately notify the sender and destroy the original message. Thank you. Please consider the environment before printing this email.
next prev parent reply other threads:[~2017-05-08 18:44 UTC|newest]
Thread overview: 39+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-04-10 23:21 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
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 [this message]
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=ec4494d0b0d348c7a2e90242b67fa5a4@DEKAEXCHANGE13.deka.local \
--to=aschmidt@dekaresearch.com \
--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=pavel@ucw.cz \
--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
all inboxes | Powered by JetHome®