From: Kurt Miller <kurt@intricatesoftware.com>
To: "Martin K. Petersen" <martin.petersen@oracle.com>
Cc: linux-scsi@vger.kernel.org
Subject: Re: LSI SAS2008 SATA TRIM not working
Date: Tue, 11 Feb 2014 21:27:30 -0500 [thread overview]
Message-ID: <1392172050.2761.37.camel@sonic.justonedata.com> (raw)
In-Reply-To: <1391984895.13523.13.camel@tardis.intricatesoftware.com>
I can report that the Samsung 840 Pro *does* support trim on the LSI
SAS2008. As suspected it supports deterministic read zeros after trim.
One other thing to note, in my testing the P16 LSI firmware has broken
trim support. P14 and P15 report incorrect values for
/sys/block/sdX/queue/discard_granularity. P17 and P18 appear to work
fine and report correct values for discard_granularity.
-Kurt
next prev parent reply other threads:[~2014-02-12 2:28 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-02-06 23:56 LSI SAS2008 SATA TRIM not working Kurt Miller
2014-02-07 20:44 ` Martin K. Petersen
2014-02-07 20:52 ` Kurt Miller
2014-02-07 20:59 ` Martin K. Petersen
2014-02-07 21:24 ` Kurt Miller
2014-02-08 1:24 ` Martin K. Petersen
2014-02-09 22:28 ` Kurt Miller
2014-02-12 2:27 ` Kurt Miller [this message]
2014-04-11 16:57 ` LSI SAS - SSDs with DRAT and DZAT Bernd Schubert
2014-04-17 19:42 ` Martin K. Petersen
2014-04-17 22:32 ` Kurt Miller
[not found] ` <CAN7X1Un4=dTyvRbyt=0j6Q+=OBcXRDB+0J+dLPZCboKdxyTTzQ@mail.gmail.com>
2014-04-18 15:23 ` Kurt Miller
2014-02-07 20:46 ` LSI SAS2008 SATA TRIM not working Kurt Miller
2015-09-09 1:45 ` Chang Limin
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=1392172050.2761.37.camel@sonic.justonedata.com \
--to=kurt@intricatesoftware.com \
--cc=linux-scsi@vger.kernel.org \
--cc=martin.petersen@oracle.com \
/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