Gentoo Archives: gentoo-user

From: antlists <antlists@××××××××××××.uk>
To: gentoo-user@l.g.o
Subject: Re: [gentoo-user] Seagate ST8000NM0065 PMR or SMR plus NAS SAS SATA question
Date: Fri, 22 May 2020 21:40:29
Message-Id: 80139b7f-6f39-beb7-c35b-f577f982423e@youngman.org.uk
In Reply to: Re: [gentoo-user] Seagate ST8000NM0065 PMR or SMR plus NAS SAS SATA question by Rich Freeman
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 ... So yes, even if the drive does support trim, it has no way of telling the OS that it does ... Cheers, Wol

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