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 <antli...@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
