Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.
Hello Florian, ok, so I see domU with loop device on drbd on md is not really reliable/stable, but your recommendation (Xen VBD in domU -> DRBD in domU -> MD in dom0 -> physical disk ) doesn't make sense for me because I had to setup 4 or more drbds. Might it possible to put a LVM on/over the drbd and make a lv for each domU. Is this setup tested and stable ? Thanks. >> disk=['file:/home/xen2/openex.img,hda1,w','file:/home/xen2/openex_swap.img, >> hda2,w'] >> > > For Xen, using file-backed VBDs in a file system replicated by DRBD is a > questionable approach. In effect, any write you issue in your domU is sent on > the following odyssey: > > Xen VBD in domU -> loop device in dom0 -> filesystem in dom0 -> DRBD in > dom0 -> MD in dom0 -> physical disk > > whereas what you could do, an what is recommended to do would be > > Xen VBD in domU -> DRBD in domU -> MD in dom0 -> physical disk > > See > http://blogs.linbit.com/florian/2007/09/03/drbd-806-brings-full-live-migration-for-xen-on-drbd/ > for configuration details. > > Florian > > -- --- Joachim Rieger agimatec GmbH Adenauerallee 73 D-53113 Bonn phone +49(0)228 184 869 80 - 31 telefax +49(0)228 184 869 80 - 15 e-mail: joachim.rieger at agimatec.de URL: http://www.agimatec.de Geschäftsführer: Jürgen Lüders HRB 14607 Amtsgericht Bonn