fast [-(
man hdparm
[Code] -S Set the standby (spindown) timeout for the drive. This value is used by
the drive to determine how long to wait (with no disk activity) before
turning off the spindle motor to save power. Under such circumstances,
the drive may take as long as 30 seconds to respond to a subsequent disk
access, though most drives are much quicker. The encoding of the time-
out value is somewhat peculiar. A value of zero means “timeouts are
disabled”: the device will not automatically enter standby mode. Values
from 1 to 240 specify multiples of 5 seconds, yielding timeouts from 5
seconds to 20 minutes. Values from 241 to 251 specify from 1 to 11
units of 30 minutes, yielding timeouts from 30 minutes to 5.5 hours. A
value of 252 signifies a timeout of 21 minutes. A value of 253 sets a
vendor-defined timeout period between 8 and 12 hours, and the value 254
is reserved. 255 is interpreted as 21 minutes plus 15 seconds. Note
that some older drives may have very different interpretations of these
values.
[/Code]
[CODE]# hdparm -S60 /dev/sda
# hdparm -S60 /dev/sdb[/CODE]
würde bedeuten, dass die HDDs nach 5 Minuten ohne Zugriff den Motor anhalten.