@mrblomblom I have submitted a pull request with what I believe is a viable fix which worked for me, this will of course have to be reviewed by at least @suman but if you wish to test my proposed fix for yourself then you are welcome to apply the changes detailed in the following link https://github.com/rockstor/rockstor-core/pull/1061/files
You can edit (via nano) your rockstor’s /opt/rockstor/src/rockstor/storageadmin/views/disk_smart.py installed file with the changes indicated in the above link and then restart your Rockstor system to enable the changes. Be careful not to change anything else and if in any doubt then disregard these rather brief instructions.
If this patch passes review then it should be available in the next Rockstor testing channel update after that and subsequently in the following stable channel update.
Let us know how you get on. No worries if you don’t fancy the editing / testing and thanks again for reporting this issue.