I had one drive in a ZFS raid 10 type array of 4 SATA dries start emailing errors: "Currently unreadable (pending) sectors". I replaced it and reinstalled proxmox. How do I tell if there are any issues with the other drives?
No, under "smartctl -a ..." you see also the progress of this process and the Check Summary. Number "1" is always the last one. You can see only the Check Summary with "smartctl -l selftest ..."