I noted that when idle, my laptop HDD increases the Load_Cycle_Count (193) approx. each ten seconds, as reported by smartctl. Have recently read about the Ubuntu and APM mode for hard drives, I searched for the tool to tune APM (that has functionality similar to linux' hdparm -B). It seems that FreeBSD does not have a tool ? Am I wrong ? In case I did not make a mistake, below is the patch that allows to manage APM state of the hard drive using atacontrol. Any comments or objections against committing this ? http://people.freebsd.org/~kib/misc/ata_setcap.1.patch
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