Re: [PLUG] Copying files to multiple volumes

[Keith via plug <plug@lists.phillylinux.org>]

On 10/28/20 5:17 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.
>
> Also, please reply to the mailing list instead of me personally.
>
> Walt
>

Until you said it might be used by someone in the Windows world, I would have send just LVM a bunch of external drives.  I don't know of anything that would acceptable in both worlds at that layer.

I take it storing and then re-connecting them to a Linux based NAS running Samba is not a viable option if the data needs to be accessed, yes?

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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