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Hello Greg=20
=20
I can not answer your first question on storing ndmp and non ndmp data =
on the same tape.=20
=20
But for the question of sharing tape drives between netapp filers, this =
requires a future release of ontap for this feature.=20
=20
And to the third. We have been having talks with several netapp folks on =
tape backup performance. The newer lto-2 and lto-3 and other drives of =
this vinage are quite a bit faster then the old dlt 7000 tape drives =
that we used for many years. For lto-2 it is on the order of 1 to 6 and =
with lto-3 you are looking at 1 to ~15. That is if you can get the =
backup stream up to that speed. With lto-2's we have on several of the =
jobs, but not all. we note that there are many factors that effect job =
speed leading to total thruput. There is a limit on the thru put that =
each filer can do and once you reach that value, adding tape drives =
does not improve things.=20
=20
len
=20
=20
________________________________
From: veritas-bu-admin AT mailman.eng.auburn DOT edu =
[mailto:veritas-bu-admin AT mailman.eng.auburn DOT edu] On Behalf Of Hindle, =
Greg
Sent: Saturday, February 25, 2006 6:43 PM
To: veritas-bu AT mailman.eng.auburn DOT edu
Subject: [Veritas-bu] Netbackup 6.0 question
Is it true that in 6.0 ndmp data and regular data can be written to the =
same tape? Also I have heard that in 6.0 ndmp drives can be seen by all =
the filers instead of them being defined 1 or two at a time to a single =
filer. Almost like all the drives in the robot are virtually defined to =
the filer. Currently we have 2 tapes drives defined to each filer and =
our backups take forever because we only have 2 drives defined. Is there =
a way in 5.x to have all the drives in a robot being seen by a single =
filer to make the backups run faster?
Greg=20
>>> This e-mail and any attachments are confidential, may contain legal, =
professional or other privileged information, and are intended solely =
for the addressee. If you are not the intended recipient, do not use =
the information in this e-mail in any way, delete this e-mail and notify =
the sender. CEG-IP1
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<HTML><HEAD><TITLE>Netbackup 6.0 question</TITLE>
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<DIV dir=3Dltr align=3Dleft><SPAN class=3D468575301-26022006><FONT =
face=3DArial=20
color=3D#0000ff size=3D2>Hello Greg </FONT></SPAN></DIV>
<DIV dir=3Dltr align=3Dleft><SPAN class=3D468575301-26022006><FONT =
face=3DArial=20
color=3D#0000ff size=3D2></FONT></SPAN> </DIV>
<DIV dir=3Dltr align=3Dleft><SPAN class=3D468575301-26022006><FONT =
face=3DArial=20
color=3D#0000ff size=3D2>I can not answer your first question on storing =
ndmp and=20
non ndmp data on the same tape. </FONT></SPAN></DIV>
<DIV dir=3Dltr align=3Dleft><SPAN class=3D468575301-26022006><FONT =
face=3DArial=20
color=3D#0000ff size=3D2></FONT></SPAN> </DIV>
<DIV dir=3Dltr align=3Dleft><SPAN class=3D468575301-26022006><FONT =
face=3DArial=20
color=3D#0000ff size=3D2>But for the question of sharing tape drives =
between netapp=20
filers, this requires a future release of ontap for this feature.=20
</FONT></SPAN></DIV>
<DIV dir=3Dltr align=3Dleft><SPAN class=3D468575301-26022006><FONT =
face=3DArial=20
color=3D#0000ff size=3D2></FONT></SPAN> </DIV>
<DIV dir=3Dltr align=3Dleft><SPAN class=3D468575301-26022006><FONT =
face=3DArial=20
color=3D#0000ff size=3D2>And to the third. We have been having talks =
with several=20
netapp folks on tape backup performance. The newer lto-2 and lto-3 =
and=20
other drives of this vinage are quite a bit faster then the old dlt 7000 =
tape=20
drives that we used for many years. For lto-2 it is on the order of 1 to =
6 =20
and with lto-3 you are looking at 1 to ~15. That is if you can get the =
backup=20
stream up to that speed. With lto-2's we have on several of the jobs, =
but not=20
all. we note that there are many factors that effect job speed leading =
to total=20
thruput. There is a limit on the thru put that each filer can do =
and once=20
you reach that value, adding tape drives does not improve things.=20
</FONT></SPAN></DIV>
<DIV dir=3Dltr align=3Dleft><SPAN class=3D468575301-26022006><FONT =
face=3DArial=20
color=3D#0000ff size=3D2></FONT></SPAN> </DIV>
<DIV dir=3Dltr align=3Dleft><SPAN class=3D468575301-26022006><FONT =
face=3DArial=20
color=3D#0000ff size=3D2>len</FONT></SPAN></DIV>
<DIV dir=3Dltr align=3Dleft><SPAN class=3D468575301-26022006><FONT =
face=3DArial=20
color=3D#0000ff size=3D2></FONT></SPAN> </DIV>
<DIV dir=3Dltr align=3Dleft><SPAN class=3D468575301-26022006><FONT =
face=3DArial=20
color=3D#0000ff size=3D2></FONT></SPAN> </DIV><BR>
<DIV class=3DOutlookMessageHeader lang=3Den-us dir=3Dltr align=3Dleft>
<HR tabIndex=3D-1>
<FONT face=3DTahoma size=3D2><B>From:</B> =
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>Hindle,=20
Greg<BR><B>Sent:</B> Saturday, February 25, 2006 6:43 PM<BR><B>To:</B>=20
veritas-bu AT mailman.eng.auburn DOT edu<BR><B>Subject:</B> [Veritas-bu] =
Netbackup 6.0=20
question<BR></FONT><BR></DIV>
<DIV></DIV><!-- Converted from text/rtf format -->
<P><FONT face=3DArial size=3D2>Is it true that in 6.0 ndmp data and =
regular data can=20
be written to the same tape? Also I have heard that in 6.0 ndmp =
drives can=20
be seen by all the filers instead of them being defined 1 or two at a =
time to a=20
single filer. Almost like all the drives in the robot are virtually =
defined to=20
the filer. Currently we have 2 tapes drives defined to each filer and =
our=20
backups take forever because we only have 2 drives defined. Is there a =
way in=20
5.x to have all the drives in a robot being seen by a single filer to =
make the=20
backups run faster?</FONT></P><BR>
<P><FONT face=3DArial size=3D2>Greg</FONT> </P><PRE>>>> This =
e-mail and any attachments are confidential, may contain legal, =
professional or other privileged information, and are intended solely =
for the addressee. If you are not the intended recipient, do not use =
the information in this e-mail in any way, delete this e-mail and notify =
the sender. CEG-IP1
</PRE></BODY></HTML>
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