Slowly upgrading to an ssd future, now that enterprise quality ssd are becoming more affordable second user. Present server and development host is running FreeBSD 12, has two 200Gb in a mirrored zfs root for the os, and 6 x 800Gb in a zfs raidz pool for data. Drives are Samsung, HGST or Toshiba with SAS interface. There was some risk to start, as no mention of wear index in the ads for the drives, but using smart utils, (smartctl -a <device>) which extracts the drive info, the wear index is less than 5% for all of them, with some showing zero. It's a work in progress, as funds allow, but enterprise class sas drives from Samsung or HGST, for example, seem to be a good bet second user. Boot times and power consumption are much improved as well...