On Sat, May 02, 2015 at 05:03:31PM +0100, sam tygier wrote: > Currently BTRFS allows you to make bad choices of data and > metadata levels. For example -d raid1 -m raid0 means you can > only use half your total disk space, but will loose everything > if 1 disk fails. This patch prevents you creating the situation > another will be need to prevent rebalancing in to it. > > When making a filesystem check that metadata mode is at least > as redundant as the data mode. For example don't allow: > -d raid1 -m raid0 This is enforcing some policty that makes sense for some usecases, but I think that the tool should be flexible enough to create any kind of raid profiles. It's up to the user. I'm willing to add a warning that the profiles seem fishy, but failing mkfs without any way to override that is IMHO not a good thing. -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
