thank you very much. what do you think abou jfs?? is it comparable with others?? ——— Ashkan R On Aug 5, 2012 12:02 AM, "Joerg Schilling" < Joerg.Schilling at fokus.fraunhofer.de> wrote: > Karanbir Singh <mail-lists at karan.org> wrote: > > > On 08/04/2012 05:06 PM, Joerg Schilling wrote: > > > Using BTRFS now is like using ZFS in 2005. > > > ZFS is adult now, BTRFS is not > > > > Can you quantify this in an impartial format as relevant to CentOS ? At > > the moment your statement is just a rant, and having come across your > > work in the past, I know you can do better than this. > > I would not call it a rant but a food for thought. > > ZFS was distributed to the public after it turned 4. > ZFS is now in public use since more than 7 years. > > What is the age of BTRFS? > > The experience with various filesystems tells that it takes 8-10 years to > make > a new filesystem mature. > > Also the OP did not ask for CentOS, but for a filesystem comparison. > > So comparing filesystems seems to be the question. For ZFS, I know that it > took until three years ago to get rid of nasty bugs. At that time, ZFS was > 8. > > So be careful with BTRFS until it was in wide use for at least 4 years. > > ZFS is the best I know for filesystems >= 2 TB and in case you need > flexible > snapshots. ZFS has just one single problem, it is slow in case you ask it > to > verify a stable FS state, UFS is much faster here, but this ZFS "problem" > is > true for all filesystems on Linux because of the implementation of the > Linux > buffer cache. > > And BTW: ZFS is based on the COW ideas I made in 1988 and the NetApp > patents > are also just based on my master thesis without giving me credit ;-) > > > There are few fs use cases where COW is not the best. > > Jörg > > -- > EMail:joerg at schily.isdn.cs.tu-berlin.de (home) Jörg Schilling D-13353 > Berlin > js at cs.tu-berlin.de (uni) > joerg.schilling at fokus.fraunhofer.de (work) Blog: > http://schily.blogspot.com/ > URL: http://cdrecord.berlios.de/private/ ftp://ftp.berlios.de/pub/schily > _______________________________________________ > CentOS mailing list > CentOS at centos.org > http://lists.centos.org/mailman/listinfo/centos >