so, what is the best way to mirror storage? lvm ontop of multipath and mirrored lvs or lvm ontop of md ontop of multipath Mit freundlichem Gruss, Dirk Laurenz Systems Engineer S DE SE PS N/O Fujitsu Siemens Computers GmbH Hildesheimer Strasse 25 30880 Laatzen Germany Telephone: +49 511 84 89 18 08 Telefax: +49 511 84 89 25 18 08 Mobile: +49 170 22 10 78 1 Email: mailto: dirk.laurenz@fujitsu-siemens.com Internet: http://www.fujitsu-siemens.com >> -----Original Message----- >> From: linux-lvm-bounces@redhat.com >> [mailto:linux-lvm-bounces@redhat.com] On Behalf Of Luca Berra >> Sent: Wednesday, July 19, 2006 12:52 AM >> To: linux-lvm@redhat.com >> Subject: Re: Error setting up a mirrored lv >> >> On Tue, Jul 18, 2006 at 03:16:13PM -0400, Harik A'ttar wrote: >> >As you noticed, you need a log partition. dm-mirror is a >> bit smarter >> >then the basic MD raid1 in that it uses a log disk to keep track of >> >write completions for synchronization. I've only recently >> got a kernel >> Just for fairness, modern md also supports bitmaps either on >> a different >> device or inside the md components for this very purpose. >> >> L. >> >> -- >> Luca Berra -- bluca@comedia.it >> Communication Media & Services S.r.l. >> /"\ >> \ / ASCII RIBBON CAMPAIGN >> X AGAINST HTML MAIL >> / \ >> >> _______________________________________________ >> linux-lvm mailing list >> linux-lvm@redhat.com >> https://www.redhat.com/mailman/listinfo/linux-lvm >> read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/ >> _______________________________________________ linux-lvm mailing list linux-lvm@redhat.com https://www.redhat.com/mailman/listinfo/linux-lvm read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/
