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a storage unit should be a logical grouping of target devices for
backups.
=20
media servers cannot share storage units, so each media server must have
at least one STU.
=20
if policies are configured on a particular media server, then clients in
that policy will back up to that media server's storage unit.
=20
one example of using storage units is to allocate tape drives.
=20
for instance, if you have 12 tape drives and only want your develepment
clients to occupy at most 4, but your prod policies to use as many as
are available, then you can create a storage unit A with 4 drives, and
another B with 8 drives.....you can set the dev policies to use stu A,
and prod policies to use "any available"
=20
that's one example that comes to mind.
=20
another is one per robot.....then if you want to use drives from any
available robot, you can put the STUs in a storage unit group, and point
policies to the group, etc.
=20
one STU per policy seems inefficient.
a high priority DB having it's own media server may not be so
odd....though it could be a SAN media server, which is cheaper, license
wise....but either way would require it's own STU.
=20
Paul
-----Original Message-----
From: veritas-bu-admin AT mailman.eng.auburn DOT edu
[mailto:veritas-bu-admin AT mailman.eng.auburn DOT edu] On Behalf Of Martin,
Jonathan (Contractor)
Sent: February 21, 2006 11:14 AM
To: veritas-bu AT mailman.eng.auburn DOT edu
Subject: [Veritas-bu] Purpose of Storage Units
=09
=09
Can someone please give me an idea of what storage units are
used for? I mean, I know I've got one per media server and another for
disk based storage, but I've recently taken over a remote site who uses
a storage unit to "customize" their database backups by "reserving" a
certain media server for this one backup policy that uses this one
Storage Unit. I've found yet another site who is using one storage unit
per policy?! I'm in no way a "guru" but most of this seems off kilter.
Can someone give me a real world example of the proper implementation of
Storage Units?! Alternately, a link to an overview would be helpful.
=20
As always, thank you!
=20
-Jonathan
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<META http-equiv=3DContent-Type content=3D"text/html; =
charset=3Dus-ascii">
<META content=3D"MSHTML 6.00.2800.1170" name=3DGENERATOR></HEAD>
<BODY text=3D#000000 bgColor=3D#ffffff>
<DIV><SPAN class=3D471261816-21022006><FONT face=3DArial color=3D#800000 =
size=3D2>a=20
storage unit should be a logical grouping of target devices for=20
backups.</FONT></SPAN></DIV>
<DIV><SPAN class=3D471261816-21022006><FONT face=3DArial color=3D#800000 =
size=3D2></FONT></SPAN> </DIV>
<DIV><SPAN class=3D471261816-21022006><FONT face=3DArial color=3D#800000 =
size=3D2>media=20
servers cannot share storage units, so each media server must have =
at least=20
one STU.</FONT></SPAN></DIV>
<DIV><SPAN class=3D471261816-21022006><FONT face=3DArial color=3D#800000 =
size=3D2></FONT></SPAN> </DIV>
<DIV><SPAN class=3D471261816-21022006><FONT face=3DArial color=3D#800000 =
size=3D2>if=20
policies are configured on a particular media server, then clients in =
that=20
policy will back up to that media server's storage =
unit.</FONT></SPAN></DIV>
<DIV><SPAN class=3D471261816-21022006><FONT face=3DArial color=3D#800000 =
size=3D2></FONT></SPAN> </DIV>
<DIV><SPAN class=3D471261816-21022006><FONT face=3DArial color=3D#800000 =
size=3D2>one=20
example of using storage units is to allocate tape =
drives.</FONT></SPAN></DIV>
<DIV><SPAN class=3D471261816-21022006><FONT face=3DArial color=3D#800000 =
size=3D2></FONT></SPAN> </DIV>
<DIV><SPAN class=3D471261816-21022006><FONT face=3DArial color=3D#800000 =
size=3D2>for=20
instance, if you have 12 tape drives and only want your develepment =
clients to=20
occupy at most 4, but your prod policies to use as many as are =
available, then you can create a storage unit A with 4 drives, and =
another=20
B with 8 drives.....</FONT></SPAN><SPAN class=3D471261816-21022006><FONT =
face=3DArial color=3D#800000 size=3D2>you can set the dev policies to =
use stu A, and=20
prod policies to use "any available"</FONT></SPAN></DIV>
<DIV><SPAN class=3D471261816-21022006><FONT face=3DArial color=3D#800000 =
size=3D2></FONT></SPAN> </DIV>
<DIV><SPAN class=3D471261816-21022006><FONT face=3DArial color=3D#800000 =
size=3D2>that's=20
one example that comes to mind.</FONT></SPAN></DIV>
<DIV><SPAN class=3D471261816-21022006><FONT face=3DArial color=3D#800000 =
size=3D2></FONT></SPAN> </DIV>
<DIV><SPAN class=3D471261816-21022006><FONT face=3DArial color=3D#800000 =
size=3D2>another is one per robot.....then if you want to use drives =
from any=20
available robot, you can put the STUs in a storage unit group, and point =
policies to the group, etc.</FONT></SPAN></DIV>
<DIV><SPAN class=3D471261816-21022006><FONT face=3DArial color=3D#800000 =
size=3D2></FONT></SPAN> </DIV>
<DIV><SPAN class=3D471261816-21022006><FONT face=3DArial color=3D#800000 =
size=3D2>one=20
STU per policy seems inefficient.</FONT></SPAN></DIV>
<DIV><SPAN class=3D471261816-21022006><FONT face=3DArial color=3D#800000 =
size=3D2>a high=20
priority DB having it's own media server may not be so odd....though it =
could=20
be a SAN media server, which is cheaper, license wise....but either =
way=20
would require it's own STU.</FONT></SPAN></DIV>
<DIV><SPAN class=3D471261816-21022006><FONT face=3DArial color=3D#800000 =
size=3D2></FONT></SPAN> </DIV>
<DIV><SPAN class=3D471261816-21022006><FONT face=3DArial color=3D#800000 =
size=3D2>Paul</FONT></SPAN></DIV>
<BLOCKQUOTE dir=3Dltr=20
style=3D"PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #800000 2px =
solid; MARGIN-RIGHT: 0px">
<DIV></DIV>
<DIV class=3DOutlookMessageHeader lang=3Den-us dir=3Dltr =
align=3Dleft><FONT=20
face=3DTahoma size=3D2>-----Original Message-----<BR><B>From:</B>=20
veritas-bu-admin AT mailman.eng.auburn DOT edu=20
[mailto:veritas-bu-admin AT mailman.eng.auburn DOT edu] <B>On Behalf Of =
</B>Martin,=20
Jonathan (Contractor)<BR><B>Sent:</B> February 21, 2006 11:14 =
AM<BR><B>To:</B>=20
veritas-bu AT mailman.eng.auburn DOT edu<BR><B>Subject:</B> [Veritas-bu] =
Purpose of=20
Storage Units<BR><BR></FONT></DIV>
<DIV><SPAN class=3D646530716-21022006><FONT face=3DArial =
color=3D#0000ff size=3D2>Can=20
someone please give me an idea of what storage units are used =
for? I=20
mean, I know I've got one per media server and another for disk based =
storage,=20
but I've recently taken over a remote site who uses a storage unit to=20
"customize" their database backups by "reserving" a certain media =
server for=20
this one backup policy that uses this one Storage Unit. I've =
found yet=20
another site who is using one storage unit per policy?! I'm in =
no way a=20
"guru" but most of this seems off kilter. Can someone give me a =
real=20
world example of the proper implementation of Storage Units?! =20
Alternately, a link to an overview would be =
helpful.</FONT></SPAN></DIV>
<DIV><SPAN class=3D646530716-21022006><FONT face=3DArial =
color=3D#0000ff=20
size=3D2></FONT></SPAN> </DIV>
<DIV><SPAN class=3D646530716-21022006><FONT face=3DArial =
color=3D#0000ff size=3D2>As=20
always, thank you!</FONT></SPAN></DIV>
<DIV><SPAN class=3D646530716-21022006><FONT face=3DArial =
color=3D#0000ff=20
size=3D2></FONT></SPAN> </DIV>
<DIV><SPAN class=3D646530716-21022006><FONT face=3DArial =
color=3D#0000ff=20
size=3D2>-Jonathan</FONT></SPAN></DIV></BLOCKQUOTE></BODY></HTML>
=00
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