From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mx3.redhat.com (mx3.redhat.com [172.16.48.32]) by int-mx2.corp.redhat.com (8.13.1/8.13.1) with ESMTP id m8H1MoMV006587 for ; Tue, 16 Sep 2008 21:22:50 -0400 Received: from e1.ny.us.ibm.com (e1.ny.us.ibm.com [32.97.182.141]) by mx3.redhat.com (8.13.8/8.13.8) with ESMTP id m8H1MVdB008622 for ; Tue, 16 Sep 2008 21:22:31 -0400 Received: from d01relay04.pok.ibm.com (d01relay04.pok.ibm.com [9.56.227.236]) by e1.ny.us.ibm.com (8.13.8/8.13.8) with ESMTP id m8H1MSAP024683 for ; Tue, 16 Sep 2008 21:22:28 -0400 Received: from d01av03.pok.ibm.com (d01av03.pok.ibm.com [9.56.224.217]) by d01relay04.pok.ibm.com (8.13.8/8.13.8/NCO v9.1) with ESMTP id m8H1MRUF241836 for ; Tue, 16 Sep 2008 21:22:27 -0400 Received: from d01av03.pok.ibm.com (loopback [127.0.0.1]) by d01av03.pok.ibm.com (8.12.11.20060308/8.13.3) with ESMTP id m8H1MRar025703 for ; Tue, 16 Sep 2008 21:22:27 -0400 Received: from malahal.localdomain (malahal.beaverton.ibm.com [9.47.17.130]) by d01av03.pok.ibm.com (8.12.11.20060308/8.12.11) with ESMTP id m8H1MR7o025251 for ; Tue, 16 Sep 2008 21:22:27 -0400 Date: Tue, 16 Sep 2008 18:22:04 -0700 From: malahal@us.ibm.com Subject: Re: [linux-lvm] Mirrored LV Message-ID: <20080917012204.GA15318@us.ibm.com> References: <1221592827.6037.57.camel@localhost> <20080916204241.GA9810@us.ibm.com> <1221599565.6037.82.camel@localhost> <1c748a490809161601q6e1040a3i90861648c1d7fc92@mail.gmail.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <1c748a490809161601q6e1040a3i90861648c1d7fc92@mail.gmail.com> Reply-To: LVM general discussion and development List-Id: LVM general discussion and development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , List-Id: Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: linux-lvm@redhat.com Larry Dickson [ldickson@cuttedge.com] wrote: > How often does the log get written in normal use, and how big does it get, > how fast? If it's a low-bandwidth sort of thing, could it go to some kind > of solid-state storage? There is a fixed size header and then a bit for each region. So it really depends on your LV size and the region size. Typically a low bandwidth sort of thing. --Malahal.