I have a pair of SATA spinning disks set up as a zfs mirrored pair. This is NOT my boot volume which is an NVME volume. I use it for my data archive, seen via john@M21:~$ ls /m21z/m21store 2offload archive extraset mainset OEDback temp 4Gramps dvdprep JOHN MARY tcfiles versioned john@M21:~$ When I check the status I get: john@M21:~$ zpool status pool: m21z state: ONLINE status: Some supported and requested features are not enabled on the pool. The pool can still be used, but some features are unavailable. action: Enable all features using 'zpool upgrade'. Once this is done, the pool may no longer be accessible by software that does not support the features. See zpool-features(7) for details. config: NAME STATE READ WRITE CKSUM m21z ONLINE 0 0 0 mirror-0 ONLINE 0 0 0 sda ONLINE 0 0 0 sdb ONLINE 0 0 0 errors: No known data errors john@M21:~$ My question is whether there is any significant risk to doing the zpool upgrade. I have noticed that fslint and czkawka don't see the /m21z/m21store/ directory, and when I manually enter it in the search set, I get Directories: Provided folder path must exist, ignoring /m21z/m21store/ Included Directory ERROR: Not found even one correct path to included which is required There are a few other apps that can't seem to access the zfs file system. Any advice? John Nash To unsubscribe send a blank message to linux+unsubscribe [ at ] linux-ottawa [ dot ] org To get help send a blank message to linux+help [ at ] linux-ottawa [ dot ] org To visit the archives: https://lists.linux-ottawa.org