OpenZFS was talked about at last month's LinuxCon event and the PDF slides are now available. Among the interesting points include:
- Porting ZFS to Linux had difficulties involving 8k stcks, GCC with ZFS being written against C99 rather than C89, GPL-only symbols to workaround, user-space differencies, and memory management differences between Solaris and Linux.
- Future work for the Linux port of the open-source ZFS includes supporting O_DIRECT, asynchronous IO, POSIX ACLs, reflink, filefrag, faloocate, TRIM, FMA infrastructure event daemon, multiple modified protection, and large blocks.
- ZFS On Linux is considered stable and production ready, the performance is comparable to existing Linux file-systems, and all major ZFS features are supported. ZFS On Linux is reportedly used within desktops, NAS devices, and even super-computers.
More details for the OpenZFS project can be found at Open-ZFS.org or the linked slides above.