<s>
Aggressive	B-Device
Link	I-Device
Power	I-Device
Management	I-Device
(	O
ALPM	B-Device
)	O
is	O
a	O
power	O
management	O
protocol	O
for	O
Advanced	O
Host	B-Architecture
Controller	I-Architecture
Interface-compliant	O
(	O
AHCI	O
)	O
Serial	O
ATA	O
(	O
SATA	O
)	O
devices	O
,	O
such	O
as	O
hard	B-Device
disk	I-Device
drives	I-Device
and	O
solid-state	B-Device
drives	I-Device
.	O
</s>
<s>
When	O
enabled	O
via	O
the	O
AHCI	O
controller	O
,	O
this	O
allows	O
the	O
SATA	O
host	B-Architecture
bus	I-Architecture
adapter	I-Architecture
to	O
enter	O
a	O
low-power	O
state	O
during	O
periods	O
of	O
inactivity	O
,	O
thus	O
saving	O
energy	O
.	O
</s>
<s>
Hot	B-Device
swapping	I-Device
is	O
disabled	O
.	O
</s>
<s>
Hot	B-Device
swapping	I-Device
is	O
disabled	O
.	O
</s>
