filesystems - ZFS alternative for Linux?

I'm running OpenSolaris with ZFS for my main fileserver. I originally went with ZFS because I heard so many awesome things about it:

• Automatic disk spanning (zpools)


• Software RAID (RAID-Z)


• Automatic pool resizing by replacing RAIDZ'd disks


• Block-level checksumming


• No practical single-volume limits


• "Coming Soon" deduplication

After poking at OpenSolaris for a while, it really bugs me. I know Fedora/CentOS and Debian/Ubuntu far better, and I'm used to the Linux way of doing stuff vs the Solaris/BSD version. I want to switch to Linux, but I don't know what to use for my FS.

I'm not willing to use FUSE or a pre-beta kernel to get ZFS. Btrfs has potential feature parity, but it's still not stable even now (months after I first looked into it). What do you recommend as an equivalent of ZFS (desired features noted above) for a Linux box?

Answer

Have you considered NexentaStor or Nexenta core? It's actively developed now that the OpenSolaris project's fate is unknown. Nexenta is also more GNU-like. The Nexenta Community edition is a good appliance-like implementation which leverages ZFS features and provides an excellent GUI. The Nexenta core is a stripped-down variant that's essentially a more usable OpenSolaris.

See: http://nexenta.org/projects/site/wiki/WhyNexenta