<s>
FSArchiver	B-Application
is	O
a	O
disk	B-Application
cloning	I-Application
utility	O
for	O
Linux	B-Application
.	O
</s>
<s>
FSArchiver	B-Application
can	O
save	O
partitions	B-Application
containing	O
different	O
popular	O
file	B-Application
systems	I-Application
to	O
a	O
disk	B-Application
image	I-Application
.	O
</s>
<s>
It	O
is	O
a	O
continuation	O
of	O
PartImage	B-Application
,	O
which	O
was	O
a	O
project	O
from	O
one	O
of	O
the	O
same	O
authors	O
,	O
and	O
implements	O
new	O
features	O
that	O
PartImage	B-Application
lacks	O
.	O
</s>
<s>
FSArchiver	B-Application
strives	O
to	O
be	O
more	O
feature-rich	O
and	O
less	O
UX	B-Application
than	O
PartImage	B-Application
.	O
</s>
<s>
Two	O
of	O
the	O
most	O
widely	O
used	O
features	O
that	O
PartImage	B-Application
lacks	O
are	O
support	O
for	O
multi-core	O
compression	B-General_Concept
and	O
support	O
for	O
the	O
commonly	O
used	O
Ext4	O
filesystem	B-Application
.	O
</s>
<s>
For	O
Windows	B-Application
users	O
,	O
FSArchiver	B-Application
includes	O
experimental	O
support	O
for	O
NTFS	B-Application
.	O
</s>
<s>
FSArchiver	B-Application
supports	O
most	O
modern	O
Linux	B-Application
file	B-Application
systems	I-Application
such	O
as	O
ext4	O
,	O
reiser4	O
and	O
btrfs	O
.	O
</s>
<s>
Other	O
notable	O
features	O
include	O
modern	O
and	O
multi-threaded	O
compression	B-General_Concept
of	O
disk	B-Application
image	I-Application
files	O
,	O
combined	O
with	O
file-based	O
images	O
(	O
as	O
opposed	O
to	O
block-based	O
images	O
most	O
similar	O
tools	O
use	O
)	O
to	O
enhance	O
compression	B-General_Concept
by	O
ignoring	O
unused	O
clusters	O
.	O
</s>
<s>
An	O
essential	O
key	O
feature	O
of	O
FSArchiver	B-Application
is	O
"	O
Everything	O
is	O
checksummed	O
in	O
the	O
archive	O
in	O
order	O
to	O
protect	O
the	O
data	O
.	O
</s>
