Hello, Does anybody have an experience (good or bad) with using COW (Copy-On-Write) storage in Xen ? I saw that there is a (rather small) wiki page about it : http://wiki.xensource.com/xenwiki/COWHowTo And also some instructions from Michael Lang for using unionfs for COW for Xen: http://wiki.xensource.com/xenwiki/InstructionsFromMichaelLang My question is : There are some altenatives which are discussed in that wiki page: unionfs, blktap ,using qemu: see http://lxr.xensource.com/lxr/source/tools/blktap/, BenRin''s Copy-on-Write md device,Translucency , DmUserspace ,parallax, CowNFS , and LVM snapshots (According to MichaelVrable wiki as I understood it). What are the pros and cons of these options ? is there a preferred one when using Xen ? Regards, Mark Ryden _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users