From: David Haller <gentoo@dhaller.de>
To: gentoo-user@lists.gentoo.org
Subject: Re: [gentoo-user] Seagate ST8000NM0065 PMR or SMR plus NAS SAS SATA question
Date: Sat, 23 May 2020 17:39:40 +0200 [thread overview]
Message-ID: <20200523153940.p5v7gvjgd2kokwez@grusum.endjinn.de> (raw)
In-Reply-To: <5359072.DvuYhMxLoT@lenovo.localdomain>
Hello,
On Sat, 23 May 2020, Michael wrote:
>On Saturday, 23 May 2020 00:31:48 BST Rich Freeman wrote:
>> On Fri, May 22, 2020 at 5:40 PM antlists <antlists@youngman.org.uk> wrote:
>> > On 22/05/2020 19:23, Rich Freeman wrote:
>> > > A big problem with drive-managed SMR is that it basically has to
>> > > assume the OS is dumb, which means most writes are in-place with no
>> > > trims, assuming the drive even supports trim.
>> >
>> > I think the problem with the current WD Reds is, in part, that the ATA-4
>> > spec is required to support trim, but the ATA-3 spec is the current
>> > version. Whoops ...
>>
>> Probably was thought up by the same genius who added the 3.3V reset
>> pin to the SATA standard.
>
>Is there a way to determine if a drive on sale is SMR *before*
>purchase?
WD Red WD*EFRX are PMR.
WD Red WD*EFAX are SMR (AFAIK, could be, that some are PMR).
ISTR, that the "Red Pro" are all PMR (so far).
HTH,
-dnh
--
If I wanted to point and drool, I'd go to a Chippendales show.
-- Leigh Metcalf
next prev parent reply other threads:[~2020-05-23 15:40 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-05-10 6:54 [gentoo-user] Seagate ST8000NM0065 PMR or SMR plus NAS SAS SATA question Dale
2020-05-10 7:44 ` Michael
2020-05-10 8:02 ` Dale
2020-05-10 13:19 ` Daniel Frey
2020-05-10 18:11 ` Dale
2020-05-10 19:11 ` Rich Freeman
2020-05-10 20:52 ` antlists
2020-05-22 15:32 ` Michael
2020-05-22 15:43 ` Rich Freeman
2020-05-22 16:15 ` Dale
2020-05-22 17:10 ` Rich Freeman
2020-05-22 18:06 ` Dale
2020-05-22 16:47 ` antlists
2020-05-22 17:20 ` Rich Freeman
2020-05-22 18:08 ` antlists
2020-05-22 18:23 ` Rich Freeman
2020-05-22 21:40 ` antlists
2020-05-22 23:31 ` Rich Freeman
2020-05-23 7:39 ` Michael
2020-05-23 7:56 ` Dale
2020-05-23 8:35 ` Wols Lists
2020-05-23 15:39 ` David Haller [this message]
2020-05-23 21:35 ` John Covici
2020-05-24 14:24 ` David Haller
2020-05-23 15:36 ` David Haller
2020-05-24 17:16 ` Dale
2020-05-10 20:59 ` Dale
2020-06-12 5:45 ` Dale
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