On Sat, Dec 20, 2014 at 11:52:57PM +0100, Alphazo wrote: > Hello, > > I'm pretty new to XFS. I'm considering moving away from ext4 to XFS because > of the new self-describing option, performance and reliability improvements > that XFS went through over the past year. Now I'm puzzled with the new free > inode btree option (finobt). I tried to find some documentation about it > but couldn't find the pros or cons. So from an end-user perspective with a > couple of TB worth of photos: > - Does it improve overall reliability? No effect on reliability, good or bad. > - Does it provide faster fsck/repair? No, if anything, it slows it down because there's more metadata to verify and rebuild. > - Does it improve any read or write operation? No. > - Is it safe to use and does it recover as well as with finobt=0? Yes and yes. > - What is the typical case for enabling it It improves performance on aged filesystems i.e. months or years down the track when you've added and removed millions of files to/from the filesystem. > and would you recommend using it > for any new fs creation? Consider the fact that "-m crc=1,finobt=1" will be made the mkfs default in 3-6 months time - that will probably co-incide with a xfsprogs 3.3 release.... Cheers, Dave. -- Dave Chinner david@xxxxxxxxxxxxx _______________________________________________ xfs mailing list xfs@xxxxxxxxxxx http://oss.sgi.com/mailman/listinfo/xfs
