UUID is stored in the filesystem so it has nothing to do with the controllers. In general it’s better to use UUID than device name /dev/sd…
> On 16 Feb 2017, at 13:21, Rob Malpass via Hampshire <hampshire@???> wrote:
>
> Hi all (sorry for various tests, had forgotten which email account I use to subscribe to this list)
>
> At present, I have a (3.5” sata) drive connected to my Ubuntu machine via one of those docking station things – I couldn’t be bothered opening up the case at the time and as it’s only a media server, I thought no more about it.
>
> Now I’m considering buying a 4 bay JBOD enclosure and I’d like to move the drive into that. At present, the drive is mounted via putting its uuid in the /etc/fstab. Simple question (which I know I could work out just by swapping the drive but please humour me): if I swap the drive out of its caddy and put it into the jbod, will it still be noticed. The question I’m basically asking is : Is the uuid associated with the drive unit or the controller in the caddy?
>
> Cheers all – long time no post – very long story I won’t bore y’all with.
>
> Rob
>
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