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Hello, |
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On Sat, 23 May 2020, Michael wrote: |
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>On Saturday, 23 May 2020 00:31:48 BST Rich Freeman wrote: |
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>> On Fri, May 22, 2020 at 5:40 PM antlists <antlists@××××××××××××.uk> wrote: |
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>> > On 22/05/2020 19:23, Rich Freeman wrote: |
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>> > > A big problem with drive-managed SMR is that it basically has to |
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>> > > assume the OS is dumb, which means most writes are in-place with no |
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>> > > trims, assuming the drive even supports trim. |
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>> > |
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>> > I think the problem with the current WD Reds is, in part, that the ATA-4 |
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>> > spec is required to support trim, but the ATA-3 spec is the current |
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>> > version. Whoops ... |
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>> |
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>> Probably was thought up by the same genius who added the 3.3V reset |
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>> pin to the SATA standard. |
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> |
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>Is there a way to determine if a drive on sale is SMR *before* |
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>purchase? |
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WD Red WD*EFRX are PMR. |
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WD Red WD*EFAX are SMR (AFAIK, could be, that some are PMR). |
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ISTR, that the "Red Pro" are all PMR (so far). |
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HTH, |
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-dnh |
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-- |
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If I wanted to point and drool, I'd go to a Chippendales show. |
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-- Leigh Metcalf |
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