Gentoo Archives: gentoo-user

From: Michael <confabulate@××××××××.com>
To: gentoo-user@l.g.o
Subject: Re: [gentoo-user] Seagate ST8000NM0065 PMR or SMR plus NAS SAS SATA question
Date: Sat, 23 May 2020 07:40:09
Message-Id: 5359072.DvuYhMxLoT@lenovo.localdomain
In Reply to: Re: [gentoo-user] Seagate ST8000NM0065 PMR or SMR plus NAS SAS SATA question by Rich Freeman
1 On Saturday, 23 May 2020 00:31:48 BST Rich Freeman wrote:
2 > On Fri, May 22, 2020 at 5:40 PM antlists <antlists@××××××××××××.uk> wrote:
3 > > On 22/05/2020 19:23, Rich Freeman wrote:
4 > > > A big problem with drive-managed SMR is that it basically has to
5 > > > assume the OS is dumb, which means most writes are in-place with no
6 > > > trims, assuming the drive even supports trim.
7 > >
8 > > I think the problem with the current WD Reds is, in part, that the ATA-4
9 > > spec is required to support trim, but the ATA-3 spec is the current
10 > > version. Whoops ...
11 >
12 > Probably was thought up by the same genius who added the 3.3V reset
13 > pin to the SATA standard.
14
15 Is there a way to determine if a drive on sale is SMR *before* purchase? I
16 assume after purchase it is a matter of filling up the drive with zeros and
17 keeping an eye on it stalling for minutes at a time; or is there some hdparm/
18 smartctl output to inform accordingly?

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