Date: Wed, 9 Nov 2016 19:12:44 -0800 From: David Christensen <dpchrist@holgerdanske.com> To: freebsd-questions@freebsd.org Subject: Re: SSD drive appears to have been "downgraded" from SATA 2 to SATA 1 Message-ID: <9c34cbb9-6da4-d3c5-ae60-5ed0f1d5b3fc@holgerdanske.com> In-Reply-To: <20161109222002.7995b1c9@curlew.lan> References: <20161109222002.7995b1c9@curlew.lan>
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On 11/09/2016 02:20 PM, Mike Clarke wrote: > > I have two allegedly identical SanDisk SATA 3 SSD drives connected to > my SATA 2 motherboard as a ZFS mirror. One of these drives (ada2) is > reported as running as SATA 2 as expected but the other (ada0) is only > reported as SATA 1. > > I've swapped the drive connections and cables between the 2 SATA ports > but the same drive still shows up as SATA 1 so I'm assuming the > discrepancy lies with the drives and not the motherboard or drivers. > > Could there be any way that the system could at some time have forced > the drive down to SATA 1, in which case how do I revert it? Or is it > more likely that I have a faulty SSD drive? I would: 1. Install a SATA 2 or 3 HBA and test the drives again. 2. Put the drives in another machine with SATA 2 or 3 ports and test the drives again. David
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