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Every new command is wrapped in a tweet and posted to Twitter. Following the stream is a great way of staying abreast of the latest commands. For the more discerning, there are Twitter accounts for commands that get a minimum of 3 and 10 votes - that way only the great commands get tweeted.
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So I had this 2TB Seagate external disk/USB enclosure which by default would spin-down its internal drive (it enters a standby mode) after four minutes of inactivity.. Spinning-up the inactive drive was an annoying delay when accessing files and also it severely interfered with NFS.. SCT stands for "Standby Condition Timer".
To completely disable SCT:
sdparm --clear STANDBY -6 /dev/sdb
To return to original (default) SCT settings:
sdparm -D -p 0x1a -6 /dev/sdb
To verify the settings (before and after):
sdparm -a /dev/sdb
No need for vendor-provided MSWIN tools, etc.