Re: [PATCH] dump -U to specify dumpdates device

[Emmanuel Dreyfus <manu%netbsd.org@localhost>]

On Wed, Mar 20, 2019 at 04:20:09PM +0000, David Holland wrote:
> I have been meaning sometime to hack dump to allow using dumpdates
> with subtree or partial-volume dumps, which requires something like
> this as a prereq, so yes please.

This is what I am doing: I split the volume root directories using 
a hash and dump them independently. That way the dumps do not last
forever to complete, and theire size are more reasonable to handle. 

There is one drawback: when given a list of directories, dump must
run as root.

Now if that makes consensus, I would be eager to add the hash split
logic inside dump so that one can request a partial volume dump
of for example root directories whose name or inode hash starts by a 
given value. 

-- 
Emmanuel Dreyfus
manu%netbsd.org@localhost