From mboxrd@z Thu Jan 1 00:00:00 1970 From: Madhusudhana U Subject: SAS disks for OSD's Date: Mon, 23 Apr 2012 15:56:24 +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]:38583 "EHLO plane.gmane.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752276Ab2DWP4g (ORCPT ); Mon, 23 Apr 2012 11:56:36 -0400 Received: from list by plane.gmane.org with local (Exim 4.69) (envelope-from ) id 1SMLcv-0004tI-EF for ceph-devel@vger.kernel.org; Mon, 23 Apr 2012 17:56:33 +0200 Received: from Static-131.13.96.14.tataidc.co.in ([Static-131.13.96.14.tataidc.co.in]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Mon, 23 Apr 2012 17:56:33 +0200 Received: from madhusudhana.u.acharya by Static-131.13.96.14.tataidc.co.in with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Mon, 23 Apr 2012 17:56:33 +0200 Sender: ceph-devel-owner@vger.kernel.org List-ID: To: ceph-devel@vger.kernel.org Hi all, Is any performance benefit we will get using SAS storage for OSD instead of SATA storage ? Is any one using SAS drives which is producing good performance? Or I can use SAS drives for journal and SATA storage for OSD? Which one in above two scenario would yield a better performance? I would like to test above scenarios, before i would like to hear if anyone got good results with SAS drives. Thanks __M