I've checked with the same image(Custom Debian Image) and WD Red 2TB HDD on my HC2.
I can't hear "clack" sound when its power down and no more increase attribute 192 "Power-Off_Retract_Count" after I installed the script.
https://wiki.odroid.com/odroid-xu4/trou ... own_script
But, I'm not sure the meaning of 192 attribute of S.M.A.R.T of your old Toshiba HDD. Because its attribute has a little different meaning basis on the manufacturer.
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root@odroid:~# uname -a Linux odroid 5.3.0-odroid-upstream-armmp #1 SMP Wed, 18 Sep 2019 17:41:55 +0000 armv7l GNU/Linux root@odroid:~#