Solaris 11.4 introduced few new ZFS pool versions with interesting new features or enhancements:
# zpool upgrade -v
38 Xcopy with encryption
39 Resilver restart enhancements
40 New deduplication support
41 Asynchronous dataset destroy
42 Reguid: ability to change the pool guid
43 RAID-Z improvements and cloud device support
44 Device removal
The RAID-Z improvements mean that data is written more efficiently - in some cases it can now store more data in a pool than before. But even more importantly the performance (both throughput and IOPS) of RAIDZ is now close to RAID10!
Friday, November 23, 2018
Friday, November 09, 2018
On Linux one needs to recompile kernel modules to get protection, while on Solaris this is not necessary. Once you are on Solaris 11.4 with Spectre fixes enabled, all kernel modules, even compiled on older Solaris releases, just work and are protected. Nothing special to do there.