From owner-freebsd-current@FreeBSD.ORG  Wed Apr 25 21:17:20 2007
Return-Path: <owner-freebsd-current@FreeBSD.ORG>
X-Original-To: current@freebsd.org
Delivered-To: freebsd-current@FreeBSD.ORG
Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52])
	by hub.freebsd.org (Postfix) with ESMTP id 2CD6C16A402;
	Wed, 25 Apr 2007 21:17:20 +0000 (UTC)
	(envelope-from master@preved.cn)
Received: from mc333.mccolo.com (mc333.mccolo.com [208.72.175.2])
	by mx1.freebsd.org (Postfix) with ESMTP id 1919F13C45E;
	Wed, 25 Apr 2007 21:17:20 +0000 (UTC)
	(envelope-from master@preved.cn)
Received: from mc333.mccolo.com (localhost [127.0.0.1])
	by mc333.mccolo.com (Postfix) with ESMTP id 9DE8E114E9;
	Wed, 25 Apr 2007 13:56:51 -0700 (PDT)
Received: from [10.7.0.3] (233.188.pseudo-real.birulevo.net [62.140.233.188])
	(using TLSv1 with cipher AES128-SHA (128/128 bits))
	(No client certificate requested)
	by mc333.mccolo.com (Postfix) with ESMTP id 9D37F114DA;
	Wed, 25 Apr 2007 13:56:50 -0700 (PDT)
Mime-Version: 1.0 (Apple Message framework v752.3)
Content-Type: text/plain; charset=US-ASCII; delsp=yes; format=flowed
Message-Id: <C8DC4B59-C431-4404-8E15-E09412E1368B@preved.cn>
Content-Transfer-Encoding: 7bit
From: Alexey Tarasov <master@preved.cn>
Date: Thu, 26 Apr 2007 00:56:50 +0400
To: Pawel Jakub Dawidek <pjd@FreeBSD.org>
X-Mailer: Apple Mail (2.752.3)
X-Virus-Scanned: ClamAV using ClamSMTP
Cc: current@freebsd.org
Subject: ZFS and mv utility
X-BeenThere: freebsd-current@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: Discussions about the use of FreeBSD-current
	<freebsd-current.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-current>, 
	<mailto:freebsd-current-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-current>
List-Post: <mailto:freebsd-current@freebsd.org>
List-Help: <mailto:freebsd-current-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-current>,
	<mailto:freebsd-current-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Wed, 25 Apr 2007 21:17:20 -0000

Hello Pawel.

I have a question about ZFS and mv utility. I have the following pool  
configuration:

NAME                          USED  AVAIL  REFER  MOUNTPOINT
storage                      62,1G   121G    26K  /storage
storage/music                7,95G   121G  7,95G  /storage/music
storage/oldhome              47,5G   121G  47,5G  /storage/oldhome

I made the following operation: mv /storage/oldhome/lexa/music/* / 
storage/music and that operation took a very long time. It seems that  
MV copies files first from storage/oldhome/lexa/musc to storage/music  
and then deletes them from old location. But I move files within one  
storage pool and it should work as fast, as it works on UFS  
partition. Does it need to be modified for compatibility with ZFS?

Thanks,

--
Alexey Tarasov
master@preved.cn