On Fri, May 15, 2020 at 12:44:32 +0100, Patrick O'Callaghan <pocallaghan@xxxxxxxxx> wrote:
One other thing. On connecting the dock, I get this from dmesg: [259115.502000] sd 7:0:0:0: [sdd] Attached SCSI disk [259115.505730] sd 7:0:0:1: [sdf] Attached SCSI disk [259115.820568] md127: Warning: Device sdf1 is misaligned [259115.820570] md/raid1:md127: active with 2 out of 2 mirrors What does 'device ... misaligned' mean?
I'm not sure, but it might mean something isn't aligned to the block size of the device. While drives are addressable by 512 byte chunks, a few years ago drives starting using 4096 byte sectors. You want your reads and writes aligned with them.
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