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? I > assume after purchase it is a matter of filling up the drive with zeros and > keeping an eye on it stalling for minutes at a time; or is there some hdparm/ > smartctl output to inform accordingly?
I google the model number with the terms smr pmr and then see what it provides. Generally, you can tell which it is BUT one never knows if they change something. What bothers me is the fact they don't disclose what a drive is. Dale :-) :-)
