On Fri, 2020-05-15 at 06:20 -0500, Bruno Wolff III wrote:
> On Fri, May 15, 2020 at 11:53:11 +0100,
> Patrick O'Callaghan <pocallaghan@xxxxxxxxx> wrote:
> > However gsmartcontrol reports that one of the HDDs has internal errors.
> > Would it be best to correct these using mdadm (assuming they can be
> > corrected), and if so, how? Or should I do an offline copy with the
> > docking station's "clone" button?
>
[...]
> You can also check the the array elements while also exercising the drive
> to catch bad blocks doing this:
> sh -c 'for raid in /sys/block/md*/md/sync_action;do echo "check" >> ${raid};done'
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?
poc
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