Re: [PLUG] Copying files to multiple volumes

[Steve Litt via plug <plug@lists.phillylinux.org>]

Perhaps you can use K.S. Bhaskar's method on three drives. He did come
up with an interesting algorithm. K.S. Bhaskar --- how would you modify
your algorithm to take advantage of *three* drives?

SteveT

Steve Litt 
Autumn 2020 featured book: Thriving in Tough Times
http://www.troubleshooters.com/thrive



On Thu, 29 Oct 2020 09:46:00 -0400
Walt Mankowski via plug <plug@lists.phillylinux.org> wrote:

> Interesting! Of course this is all moot now since they won't come
> close to fitting on 2 drives.
> 
> Speaking of which, can we as an industry decide whether K,M,G,
> etc. refer to powers of 1000 or 1024? The reason I thought it might
> fit was because the "4 TB" drive had 4 trillion bytes, whereas all the
> other TBs were using 1024^4.
> 
> Sigh.
> 
> On Thu, Oct 29, 2020 at 09:37:22AM -0400, K.S. Bhaskar via plug wrote:
> > Steve –
> > 
> > Yes, at minimal cost, it preserves each file's location on disk,
> > and also simplifies restoring as well as searching for files.
> > 
> > Regards
> > – Bhaskar
> > 
> > On Thu, Oct 29, 2020 at 2:41 AM Steve Litt
> > <slitt@troubleshooters.com> wrote:
> >   
> > > On Wed, 28 Oct 2020 21:33:13 -0400
> > > "K.S. Bhaskar via plug" <plug@lists.phillylinux.org> wrote:
> > >  
> > > > You can use a boustrophedon-inspired heuristic that will likely
> > > > give a good-enough fit. For two drives, create the same
> > > > directory hierarchy on both drives, and sort the file sizes
> > > > from largest to smallest. Then put the largest file on disk1 in
> > > > the directory where it belongs, the next two on disk 2 in the
> > > > directories where they belong, the next two on disk 1, the next
> > > > two on disk two, and so on. You can extend this heuristic to n
> > > > drives.  
> > >
> > > Is the reason for the identical directory structures on each disk
> > > to preserve each file's location on the original?
> > >
> > > SteveT
> > >
> > > Steve Litt
> > > Autumn 2020 featured book: Thriving in Tough Times
> > > http://www.troubleshooters.com/thrive
> > >  
> 
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