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Commands tagged sdparm from sorted by
Terminal - Commands tagged sdparm - 1 results
sdparm -s SCT=36000 --save /dev/sdb
2013-04-19 13:26:18
User: mhs
Tags: sdparm
2

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.