Quote Originally Posted by Markore View Post
ZFS is more mature in its league then anything else on market and that is open source (or not open).

Development is being continued on open by porters on many platforms, not only Linux. (On Linux one needs to add ZFS native module separately from main Linux because ZFS is CDDL licensed (Floss, can link to other licenses) and Linux is GPL2.

Those platforms are also OpenIndiana (OpenSolaris community continuation), Nexenta, FreeBSD, Schillix, zfs-fuse, OSX, and native Linux port in progress.
And used by companies such as Joyent, Entic etc (One can get VPS servers from them)
OpenSolaris based foundation for Open distributions is IllumOS project, sponsored by Nexenta and others. (One can get payed support from Nexenta)

ZFS is being used in production environment for years (5+) and it can save you from high priced closed and hardware-tied solutions for SAN .
It can even save you form even buying high priced RAID cards/controllers.
Same pool of disks can be used on both x86 and SPARC servers.

ZFS is basically main focal point of best of what file system can give to administrators.
Oracle choose to continue developing it closed, hoping monetizing on it but one should be warned not to install SolarisExpress on their machines first with ZFS.

If you want to use ZFS pool on all supported platforms (Linux, zfs-fusa, FreeBSD, Nexenta, OpenIndiana, S11Express), one should first install eather 2009.06 or from OpenSolaris snv_134 CD (genunix.org) and Then update to both OpenIndiana dev and Solaris11Express.
That way also Linux and FreeBSD can use it - still did not tried to install and boot additional OS'es from same disk(s)/pool, but it is possible since ZFS allows MANY different OS/versions to boot from same ZFS pol, using Boot Environments
It is being reported that Ubuntu is able of booting out of ZFS disk/partition/pool with some caveats, so stay tuned
Uh, no. ZFS may be mature ***ON SOLARIS***, but it is very new/buggy/immature and in need of TONS of work before it even remotely begins to approach ANY semblance of maturity on Linux.

BTRFS has the same characteristics, but is FAR FAR MORE MATURE on Linux.

It makes no difference if the filesystem is mature on solaris. This has no relation to its level of maturity on linux.

You can use NTFS to compare. One could consider that NTFS was mature all the way back in 1993. Linux kernel 2.2 had the beginnings of NTFS support starting in 1999 -- was it suddenly a good idea to run your enterprise linux servers on NTFS all the way back in 1999? NTFS-3G wasn't considered stable (aka "safe") until 2007 -- 14 years after NTFS was introduced, and yet people STILL don't put their enterprise linux servers on that filesystem TODAY.

Must remember that it is a different platform. You can't just magically and instantly dump in code and expect it to work the same as what its emulating. It takes years to work out the bugs and stabilize it. Why go to all the trouble for ZFS when we have BTRFS that is so much closer to being enterprise ready? Even major distros like Fedora are talking about making BTRFS into the default filesystem for new installations AS SOON AS AUTUMN THIS YEAR. I would imagine that if this happens and works out, the next version of RHEL will follow in a few years -- that will be enterprise linux servers on BTRFS, well before ZFS is even ready for bleeding edge distros.