[Qemu-devel] Re: Notes on block I/O data integrity

[Javier Guerra]

On Tue, Aug 25, 2009 at 1:11 PM, Christoph Hellwig<address@hidden> wrote:
>  - barrier requests and cache flushes are supported by all local
>   disk filesystem in popular use (btrfs, ext3, ext4, reiserfs, XFS).
>   However unlike the other filesystems ext3 does _NOT_ enable barriers
>   and cache flush requests by default.

what about LVM? iv'e read somewhere that it used to just eat barriers
used by XFS, making it less safe than simple partitions.

-- 
Javier