On Saturday 15 November 2014 13:37:46 Anton Aylward wrote:
NOT!
I can't see why not to trust LVM. Its got a good heritage before it was imported into Linux. I've been using it for nearly a decade and its never given me any problems. Its at least as reliable as the extN file systems and the ReiserFS. I've not used XFS so I can't comment.
I say "NOT!" becuase a subvolume of a BtrFS partition is not really a new partition, its and administrative & management aspects. In many ways it behaves like a subdirectory in that it uses space on the 'parent'. You are NOT, repeats NOT mounting a new piece of storage.
The manual page says quite explicitly
<quote> A subvolume in btrfs is not like an LVM logical volume, which is quite independent from each other, a btrfs subvolume has its hierarchy and relations between other subvolumes. </quote>
I cannot understand your point... Yes subvolume is not LVM, but my goal is to have some files (or all files in subfolder) to have 'nodatacow' by default, it is not a synonym of LVM. I'm not convincing you to abandon LVM, I just don't trust it. Showstoper for me will be if btrfs cannot mount subvolume with 'nodatacow', but my test on VirtualBox guest went fine, so I will try the same on my laptop when I'll be upgrading from 13.1 to 13.2. -- Regards, Stas -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org