ZFS version 15 in FreeBSD

ZFS - The last word in file systemsAfter several weeks of testing and a discussion at the meetBSD 2010 conference I have successfully imported into the FreeBSD operating system (development branch 9-CURRENT) an update of the ZFS file system to version 15.

What is new in this version?

1. Stability – more mature ZFS code, comparable to Solaris 10 update 8 with latest bugfixes
2. Compatibility – Solaris 10 update 8 default ZFS pools can now be imported into FreeBSD
3. Features – user and group quotas (ZFS-internal) are very useful for intranet fileservers that want to use ZFS
4. Speed – my real-world benchmarks give a 15-20% RPS yield in PHP webserver workloads with codebase on ZFS

The new version will take 2 months of testing and if there are no serious issues I will import it on 2010-09-12 into the 8-STABLE branch.
The new version will take 2 months of testing and if there are no serious issues I will import it on 2010-09-12 into the 8-STABLE branch.

The update is backwards and forwards compatible – old versions of the zfs and zpool utilities work with the new kernel module and new versions of these utilities support the old kernel module.

References:
Announcement of the ZFS v15 import
SVN log of the ZFS v15 Import (9-CURRENT)

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