<s>
Highly	B-Application
Available	I-Application
Storage	I-Application
(	O
HAST	O
)	O
is	O
a	O
protocol	O
and	O
tool	O
set	O
for	O
FreeBSD	B-Operating_System
written	O
by	O
Pawel	O
Jakub	O
Dawidek	O
,	O
a	O
core	O
FreeBSD	B-Operating_System
developer	O
.	O
</s>
<s>
HAST-provided	O
devices	O
appear	O
like	O
disk	O
devices	O
in	O
the	O
/dev/hast/	O
directory	O
in	O
FreeBSD	B-Operating_System
,	O
and	O
can	O
be	O
used	O
like	O
standard	O
block	O
devices	O
.	O
</s>
<s>
HAST	O
is	O
similar	O
to	O
a	O
RAID1	O
(	O
mirror	O
)	O
where	O
each	O
RAID	B-Architecture
component	O
is	O
provided	O
across	O
the	O
network	O
by	O
one	O
cluster	O
node	O
.	O
</s>
