Is there a way to programmatically spin down a SCSI disk? I've looked at the man pages for smartctl tune2fs and found nothing. Red Hat Enterprise Linux WS release 4 (Nahant Update 6) Kernel 2.6.9-67.0.20.ELsmp. Norman Shapiro 798 Barron Avenue Palo Alto CA 94306-3109 (650) 565-8215 norm at dad.org