ZFS on Linux 0.7.0 released!
https://github.com/zfsonlinux/zfs/releases/tag/zfs-0.7.0
### New Features
* Resumable zfs send/receive - Allow an interrupted zfs receive to be
resumed if the stream was prematurely terminated (e.g. due to remote
system or network failure).
* Compressed zfs send/receive - Use the zfs send -c option to directly
send the compressed data in the ARC or on-disk to another pool without
needing to decompress it.
* Multiple Import Protection - Prevents a shared pool in a fail-over
configuration from being imported on different hosts at the same time.
When the multihost pool property is on, perform an activity check
prior to importing the pool to verify it is not in use.
* Customized zpool iostat|status columns - Additional columns can be
added to the zpool iostat and zpool status output to show more
information. Several useful scripts are provided which can report
drive temperature, SMART data, enclosure LED status, and more.
Administrators and users can add additional scripts to meet their
needs.
* Latency and request size histograms - Use the zpool iostat -l option
to show on-the-fly latency stats and zpool iostat -w to generate a
histogram showing the total latency of each IO. The zpool iostat -r
option can be used to show the size of each IO. These statistics are
available per-disk to aid in finding misbehaving devices.
* Scrub Pause - The zpool scrub -p option can be used to pause/resume an
active scrub without having to cancel it.
* Delegations - The zfs allow and zfs unallow subcommands can be used to
delegate ZFS administrative permissions for the file systems to
non-privileged users.
* Large dnodes - This feature improves metadata performance allowing
extended attributes, ACLs, and symbolic links with long target names
to be stored in the dnode. This benefits workloads such as SELinux,
distributed filesystems like Lustre and Ceph, and any application
which makes use of extended attributes.
* User/group object accounting and quota - This feature adds per-object
user/group accounting and quota limits to the existing space
accounting and quota functionality. The zfs userspace and zfs
groupspace subcommands have been extended to set quota limits and
report on object usage.
* Cryptographic checksums - Stronger SHA-512, Skein, or Edon-R checksums
are available.
* JBOD Management
* Automatic drive online - Newly detected devices which are determined
to be part of an imported pool are automatically brought online.
* Automatic drive replacement - When the autoreplace pool property is
on, any new device found in the same physical location as a device
that previously belonged to the pool, is automatically formatted and
replaced.
* Automatic hot spares - When a device is faulted start a rebuild to a
hot-spare device if available.
* Fault LEDs - Set the fault LED for a device when it's faulted, clear
it when it has been replaced.
* Drive health monitoring - Automatically fault a device when an
excessive number of read, write, or checksum errors are detected.
* Force fault - Use zpool offline -f to proactively fault a
problematic device.
* Multipath - Can be used with advanced multipath configurations.
And further performance and bug fixes..