<s>
Stratis	B-Application
is	O
a	O
user-space	B-Operating_System
configuration	O
daemon	B-Operating_System
that	O
configures	O
and	O
monitors	O
existing	O
components	O
from	O
Linux	B-Application
's	O
underlying	O
storage	O
components	O
of	O
logical	B-Application
volume	I-Application
management	I-Application
(	O
LVM	O
)	O
and	O
XFS	B-Application
filesystem	B-Application
via	O
D-Bus	B-Language
.	O
</s>
<s>
Stratis	B-Application
is	O
not	O
a	O
user-level	B-Operating_System
filesystem	B-Application
like	O
the	O
Filesystem	B-Application
in	I-Application
Userspace	I-Application
(	O
FUSE	B-Application
)	O
system	O
.	O
</s>
<s>
Stratis	B-Application
configuration	O
daemon	B-Operating_System
was	O
originally	O
developed	O
by	O
Red	O
Hat	O
to	O
have	O
feature	O
parity	O
with	O
ZFS	B-Application
and	O
Btrfs	B-Operating_System
.	O
</s>
<s>
The	O
hope	O
was	O
due	O
to	O
Stratis	B-Application
configuration	O
daemon	B-Operating_System
being	O
in	O
userland	O
,	O
it	O
would	O
more	O
quickly	O
reach	O
maturity	O
versus	O
the	O
years	O
of	O
kernel	O
level	O
development	O
of	O
file	B-Application
systems	I-Application
ZFS	B-Application
and	O
Btrfs	B-Operating_System
.	O
</s>
<s>
It	O
is	O
built	O
upon	O
enterprise-tested	O
components	O
LVM	O
and	O
XFS	B-Application
with	O
over	O
a	O
decade	O
of	O
enterprise	O
deployments	O
and	O
the	O
lessons	O
learned	O
from	O
System	O
Storage	O
Manager	O
in	O
Red	O
Hat	O
Enterprise	O
Linux	B-Application
7	O
.	O
</s>
<s>
Stratis	B-Application
provides	O
ZFS/Btrfs	O
-style	O
features	O
by	O
integrating	O
layers	O
of	O
existing	O
technology	O
:	O
Linux	B-Application
's	O
device	B-Application
mapper	I-Application
subsystem	O
,	O
and	O
the	O
XFS	B-Application
filesystem	B-Application
.	O
</s>
<s>
The	O
stratisd	O
daemon	B-Operating_System
manages	O
collections	O
of	O
block	O
devices	O
,	O
and	O
provides	O
a	O
D-Bus	B-Language
API	B-General_Concept
.	O
</s>
<s>
The	O
stratis-cli	O
DNF	B-Application
package	B-Application
provides	O
a	O
command-line	O
tool	O
stratis	B-Application
,	O
which	O
itself	O
uses	O
the	O
D-Bus	B-Language
API	B-General_Concept
to	O
communicate	O
with	O
stratisd	O
.	O
</s>
