<s>
A	O
tape	B-General_Concept
management	I-General_Concept
system	I-General_Concept
(	O
TMS	O
)	O
is	O
computer	O
software	O
that	O
manages	O
the	O
usage	O
and	O
retention	O
of	O
computer	O
backup	B-Protocol
tapes	I-Protocol
.	O
</s>
<s>
This	O
may	O
be	O
done	O
as	O
a	O
stand-alone	B-General_Concept
function	O
or	O
as	O
part	O
of	O
a	O
broader	O
backup	B-Application
software	I-Application
package	O
.	O
</s>
<s>
A	O
modern	O
tape	B-General_Concept
management	I-General_Concept
system	I-General_Concept
(	O
TMS	O
)	O
is	O
usually	O
used	O
in	O
conjunction	O
with	O
backup	B-Application
applications	O
and	O
are	O
generally	O
used	O
to	O
manage	O
magnetic	O
tape	O
media	O
that	O
contains	O
backup	B-Application
information	O
and	O
other	O
electronically	O
stored	O
information	O
.	O
</s>
<s>
Tape	B-General_Concept
management	I-General_Concept
systems	I-General_Concept
are	O
used	O
by	O
organizations	O
to	O
locate	O
,	O
track	O
,	O
and	O
rotate	O
media	O
according	O
to	O
an	O
organizations	O
internal	O
policies	O
as	O
well	O
as	O
government	O
regulations	O
.	O
</s>
<s>
Stand-alone	B-General_Concept
tape	B-General_Concept
management	I-General_Concept
systems	I-General_Concept
are	O
predominant	O
on	O
mainframe	B-Architecture
platforms	I-Architecture
where	O
tape	O
is	O
used	O
as	O
both	O
a	O
backup	B-Application
and	O
base	O
load	O
storage	O
medium	O
.	O
</s>
<s>
Mainframe	B-Architecture
systems	O
such	O
as	O
IBM	B-Application
's	I-Application
z/OS	I-Application
do	O
provide	O
some	O
basic	O
support	O
for	O
tape	O
inventory	O
control	O
via	O
the	O
OS	O
Catalog	O
but	O
as	O
cataloging	O
files	O
is	O
optional	O
it	O
is	O
usually	O
required	O
that	O
an	O
additional	O
software	O
package	O
does	O
the	O
following	O
:	O
</s>
<s>
These	O
operations	O
are	O
usually	O
achieved	O
by	O
using	O
operating	B-General_Concept
system	I-General_Concept
"	O
hooks	O
"	O
to	O
intercept	O
file	O
open	O
and	O
close	O
operations	O
.	O
</s>
