Jon Wolfe via plug on 28 Oct 2020 14:22:54 -0700


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Re: [PLUG] Copying files to multiple volumes



On 10/28/20 10:17 PM, Walt Mankowski via plug wrote:
These drives might well be used by someone using Windows instead of
Linux, so changing the filesystem isn't an option.
It would be possible to create multiple large files, mount them as loopback devices and build a file system on top of that. But I am guessing part of the goal is that the files can be read by Windows.

Also, please reply to the mailing list instead of me personally.
Ah I see what I did wrong.
Walt

On Wed, Oct 28, 2020 at 10:15:08PM +0100, Jon Wolfe wrote:

Don't know if this is a good solution for you or not. But you could
always create a BTRFS system. There are probably other file systems also
that can span volumes.

On 10/28/20 10:11 PM, Walt Mankowski via plug wrote:

Hi,

At work I've got to copy 7.8 TB of files onto external hard drives so
they can be archived. Ideally I'd like these to fit onto two 4-TB
drives. Assuming they can fit [1] does anyone know of a way to do
copies that span volumes?

My fallback is to run `du -b --max-depth=1`, load the output into a
spreadsheet, and hope that I can find point in the middle that leaves
half on each side. But I'm hoping there might be something to automate
it.

Walt

1. Yes, I realize this is the bin-packing problem and it's
    NP-Hard. The subdirectories are all around the same size and I'm
    hoping I'll get lucky.


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___________________________________________________________________________
Philadelphia Linux Users Group         --        http://www.phillylinux.org
Announcements - http://lists.phillylinux.org/mailman/listinfo/plug-announce
General Discussion  --   http://lists.phillylinux.org/mailman/listinfo/plug


      

    

    

  


___________________________________________________________________________
Philadelphia Linux Users Group         --        http://www.phillylinux.org
Announcements - http://lists.phillylinux.org/mailman/listinfo/plug-announce
General Discussion  --   http://lists.phillylinux.org/mailman/listinfo/plug