[mythtv-users] Two new physical drives appear as subdirectories of the same drive: why?

[Hika van den Hoven]

Hoi UB40D,

Sunday, March 6, 2022, 12:54:44 AM, you wrote:




> On Sat, 5 Mar 2022 at 21:28, David Engel <david at istwok.net> wrote:

> MythTV's ability to identify distinct drives uses pretty,
>  simple-minded heuristics.  One of those heuristics is to look at disk
>  space available and used.  Since your drives have the same disk space
>  values, MythTV thinks they are the same drive.  Once you put some
>  files on them and the disk space values diverge, MythTV will see them
>  as separate.




> Thanks for this explanation but I find it mindboggling... Why does
> Myth need "heuristics" when perfectly reliable first-hand
> information is available from the computer and OS about which drive is which?
>  

You can have 2 or more recording directories on one physical drive or
volume. Without some means to determine on whether 2 directories are
on the same drive/volume, free space would be multiplied. Of cause
there are more sophisticated ways, but how often will it occur that
two drives have exactly the same free space? Aside from to identical
empty drives.


Tot mails,
  Hika                            mailto:hikavdh at gmail.com

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