kern/177985: [zfs] disk usage problem when copying from one zfs dataset to another on the same pool using mv command

[Jon]

The following reply was made to PR kern/177985; it has been noted by GNATS.

From: Jon <sybersnake at gmail.com>
To: Andriy Gapon <avg at FreeBSD.org>
Cc: "bug-followup at FreeBSD.org" <bug-followup at FreeBSD.org>
Subject: Re: kern/177985: [zfs] disk usage problem when copying from one zfs dataset to another on the same pool using mv command
Date: Sat, 20 Apr 2013 15:49:41 -0400

 This is not a bug, it is a workflow problem introduced by the difference in b=
 ehavior between ZFS datasets and fixed sized file systems.=20
 
 You should be able to move files from one dataset to another on the same poo=
 l without having to copy it to another pool and back. This all can be accomp=
 lished by deleting copied files more often than it currently does or at leas=
 t adding a flag to turn on synchronized deletes.
 
 After I am done testing the same scenario on Solaris I will run the test Ste=
 ve suggested.=20
 
 Sent from my iPhone
 
 On Apr 20, 2013, at 3:12 PM, Andriy Gapon <avg at FreeBSD.org> wrote:
 
 >=20
 > Sorry, but I do not see any bug reported here.
 > mv behaves as it is expected/documented to behave.
 > ZFS behaves as it should as well.
 > If the behavior is surprising to you then please update your knowledge of t=
 he tools.
 > If you need a different behavior then you can script it yourself or use
 > different tools to accomplish your job.
 >=20
 > --=20
 > Andriy Gapon