From mboxrd@z Thu Jan 1 00:00:00 1970 From: xinren Subject: =?utf-8?b?c2V0X2xheW91dA==?= Date: Fri, 27 Apr 2012 17:25:31 +0000 (UTC) Message-ID: Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Return-path: Received: from plane.gmane.org ([80.91.229.3]:52028 "EHLO plane.gmane.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757973Ab2D1CZG (ORCPT ); Fri, 27 Apr 2012 22:25:06 -0400 Received: from list by plane.gmane.org with local (Exim 4.69) (envelope-from ) id 1SNxLL-0002kW-Ro for ceph-devel@vger.kernel.org; Sat, 28 Apr 2012 04:25:04 +0200 Received: from c-98-221-149-4.hsd1.nj.comcast.net ([98.221.149.4]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Sat, 28 Apr 2012 04:25:03 +0200 Received: from tntinfo by c-98-221-149-4.hsd1.nj.comcast.net with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Sat, 28 Apr 2012 04:25:03 +0200 Sender: ceph-devel-owner@vger.kernel.org List-ID: To: ceph-devel@vger.kernel.org All, I try to use cephfs to set up various parameters, such as cephfs /cephdir set_layout -s 8388608 -c 1 -u 8388608 -o 1 In this case, the "preferred osd" will be 1. I then copy files to /cephdir. I found that stripe_unit is 8MByte. However, files are copies to different OSDs (I have 4 OSDs). Is there any way that I copy a file to a designate OSD? Thanks in advance. Regards Xinren