<s>
Solaris	B-Application
Volume	I-Application
Manager	I-Application
(	O
SVM	O
;	O
formerly	O
known	O
as	O
Online	O
:	O
DiskSuite	O
,	O
and	O
later	O
Solstice	B-Application
DiskSuite	I-Application
)	O
is	O
a	O
software	O
package	O
for	O
creating	O
,	O
modifying	O
and	O
controlling	O
RAID-0	O
(	O
concatenation	O
and	O
stripe	O
)	O
volumes	O
,	O
RAID-1	O
(	O
mirror	O
)	O
volumes	O
,	O
RAID	B-Architecture
0+1	O
volumes	O
,	O
RAID	B-Architecture
1+0	O
volumes	O
,	O
RAID-5	O
volumes	O
,	O
and	O
soft	O
partitions	O
.	O
</s>
<s>
Version	O
1.0	O
of	O
Online	O
:	O
DiskSuite	O
was	O
released	O
as	O
an	O
add-on	O
product	O
for	O
SunOS	B-Operating_System
in	O
late	O
1991	O
;	O
the	O
product	O
has	O
undergone	O
significant	O
enhancements	O
over	O
the	O
years	O
.	O
</s>
<s>
SVM	O
has	O
been	O
included	O
as	O
a	O
standard	O
part	O
of	O
Solaris	B-Application
since	O
Solaris	B-Application
8	I-Application
was	O
released	O
in	O
February	O
2000	O
.	O
</s>
<s>
SVM	O
is	O
similar	O
in	O
functionality	O
to	O
later	O
software	O
volume	B-Application
managers	I-Application
such	O
as	O
FreeBSD	B-Operating_System
Vinum	B-Application
volume	I-Application
manager	I-Application
,	O
allowing	O
metadevices	O
(	O
virtual	O
disks	O
)	O
to	O
be	O
concatenated	O
,	O
striped	O
or	O
mirrored	O
together	O
from	O
physical	O
ones	O
.	O
</s>
<s>
It	O
also	O
supports	O
soft	O
partitioning	O
,	O
dynamic	O
hot	B-General_Concept
spares	I-General_Concept
,	O
and	O
growing	O
metadevices	O
.	O
</s>
<s>
The	O
mirrors	O
support	O
dirty	O
region	O
logging	O
(	O
DRL	O
,	O
called	O
resync	O
regions	O
in	O
DiskSuite	O
)	O
and	O
logging	O
support	O
for	O
RAID-5	O
.	O
</s>
<s>
The	O
ZFS	B-Application
file	O
system	O
,	O
added	O
in	O
the	O
Solaris	B-Application
10	I-Application
6/06	O
release	O
,	O
has	O
its	O
own	O
integrated	O
volume	B-Application
management	I-Application
capabilities	O
,	O
but	O
SVM	O
continues	O
to	O
be	O
included	O
with	O
Solaris	B-Application
for	O
use	O
with	O
other	O
file	O
systems	O
.	O
</s>
