<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <meta content="text/html;charset=ISO-8859-1" http-equiv="Content-Type"> </head> <body bgcolor="#ffffff" text="#000000"> Daniel Veillard wrote: <blockquote cite="mid:20081103155809.GC6832@redhat.com" type="cite"> <pre wrap="">On Sat, Nov 01, 2008 at 06:20:27PM -0500, Charles Duffy wrote: </pre> <blockquote type="cite"> <pre wrap="">As cache=off is necessary for clustering filesystems such as GFS (and such is the point of shareable, yes?), I believe this is correct behavior. Comments? </pre> </blockquote> <pre wrap=""> Yes that sounds right, if shared over network we should not cache locally in the OS, applied and commited, thanks ! Daniel</pre> </blockquote> cache=off should be the default case (or the similar O_DSYNC case). cache=on should only be used for temporal usage and not really production data. It's just unsafe to use caching if you data is important to you. It's a hot issue in the qemu mailing list. Cheers, Dor </body> </html>