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Many thanks, David!! this is a mighty hefty doc, but I've found what I need
(maybe?) on page 100. Wish us luck!
-----Original Message-----
From: David Chapa [mailto:david.chapa AT adic DOT com]
Sent: Friday, December 05, 2003 12:42 PM
To: Parisi, Aren; veritas-bu AT mailman.eng.auburn DOT edu
Subject: RE: [Veritas-bu] Where in NBU are drive settings (LTO-1 and LTO-2)
tuned separatel y?
Since you are running HP you CAN configure them independently, at least at
the driver level.
I assume you are using IBMs driver (atdd) which contains both the tape
driver and the medium changer.
IBM published a REDBOOK on their Gen 2 product and how to configure it with
various OS's and applications.
http://www.redbooks.ibm.com/redbooks/pdfs/sg246502.pdf
<http://www.redbooks.ibm.com/redbooks/pdfs/sg246502.pdf>
This should answer your questions. If not, please let me know.
David A. Chapa * Technical Advisor, Technical Marketing * ADIC *
720.249.5836 * david.chapa AT adic DOT com <mailto:david.chapa AT adic DOT com>
Pathlight VX - Integrated Disk-to-Tape Backup - <http://www.adic.com>
http://www.adic.com
-----Original Message-----
From: Parisi, Aren [mailto:Aren.Parisi AT wwireless DOT com]
Sent: Thursday, December 04, 2003 1:08 PM
To: 'veritas-bu AT mailman.eng.auburn DOT edu'
Subject: [Veritas-bu] Where in NBU are drive settings (LTO-1 and LTO-2)
tuned separatel y?
NBU 3.4.1 Master:HP-UX 11i three-way service guard cluster Library:ADIC
scalar10k IBM Ultrium drives:20@LTO-1, 10@LTO-2 same cabinet. We have just
benchmarked our new LTO-2 drives and they are NO FASTER than the LTO-1
drives. Are there separate tuneables for the new drives we are not looking
at? Buffer settings, something undocumented perhaps? We have a 3GB (bound)
FC ethernet connection on the media server so I don't think it's a network
bottleneck, disk is XP-512 (rebadged Hitachi) screaming fast disk. Tested
same class on each type of drive, identical runtimes. ??? Thank you experts.
Aren M. Parisi *
Information Technology
Western Wireless Corp.
(425)313-5225 mob.(206)795-6631
Where are we going and why am I in this handbasket?
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<DIV><FONT face=3D"Courier New" color=3D#0000ff size=3D2><SPAN=20
class=3D768461000-06122003>Many thanks, David!! this is a =
mighty hefty doc,=20
but I've found what I need (maybe?) on page 100. Wish us=20
luck!</SPAN></FONT></DIV>
<BLOCKQUOTE dir=3Dltr style=3D"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> =
David Chapa=20
[mailto:david.chapa AT adic DOT com] <BR><B>Sent:</B> Friday, December 05, =
2003 12:42=20
PM<BR><B>To:</B> Parisi, Aren;=20
veritas-bu AT mailman.eng.auburn DOT edu<BR><B>Subject:</B> RE: [Veritas-bu] =
Where in=20
NBU are drive settings (LTO-1 and LTO-2) tuned separatel=20
y?<BR><BR></FONT></DIV>
<DIV class=3DSection1>
<P class=3DMsoNormal><FONT face=3DArial color=3Dnavy size=3D2><SPAN=20
style=3D"FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">Since you =
are running=20
HP you CAN configure them independently, at least at the driver=20
level.<o:p></o:p></SPAN></FONT></P>
<P class=3DMsoNormal><FONT face=3DArial color=3Dnavy size=3D2><SPAN=20
style=3D"FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: =
Arial"><o:p> </o:p></SPAN></FONT></P>
<P class=3DMsoNormal><FONT face=3DArial color=3Dnavy size=3D2><SPAN=20
style=3D"FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">I assume =
you are=20
using <SPAN class=3DSpellE>IBMs</SPAN> driver (<SPAN =
class=3DSpellE>atdd</SPAN>)=20
which contains both the tape driver and the medium=20
changer.<o:p></o:p></SPAN></FONT></P>
<P class=3DMsoNormal><FONT face=3DArial color=3Dnavy size=3D2><SPAN=20
style=3D"FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: =
Arial"><o:p> </o:p></SPAN></FONT></P>
<P class=3DMsoNormal><FONT face=3DArial color=3Dnavy size=3D2><SPAN=20
style=3D"FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">IBM =
published a=20
REDBOOK on their Gen 2 product and how to configure it with various =
<SPAN=20
class=3DSpellE>OS's</SPAN> and =
applications.<o:p></o:p></SPAN></FONT></P>
<P class=3DMsoNormal><FONT face=3DArial color=3Dnavy size=3D2><SPAN=20
style=3D"FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: =
Arial"><o:p> </o:p></SPAN></FONT></P>
<P class=3DMsoNormal><FONT face=3DArial color=3Dnavy size=3D2><SPAN=20
style=3D"FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"><A=20
=
href=3D"http://www.redbooks.ibm.com/redbooks/pdfs/sg246502.pdf";>http://w=
ww.redbooks.ibm.com/redbooks/pdfs/sg246502.pdf</A><o:p></o:p></SPAN></FO=
NT></P>
<P class=3DMsoNormal><FONT face=3DArial color=3Dnavy size=3D2><SPAN=20
style=3D"FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: =
Arial"><o:p> </o:p></SPAN></FONT></P>
<P class=3DMsoNormal><FONT face=3DArial color=3Dnavy size=3D2><SPAN=20
style=3D"FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">This =
should answer=20
your questions.<SPAN style=3D"mso-spacerun: yes"> </SPAN>If =
not, please=20
let me know.<o:p></o:p></SPAN></FONT></P>
<DIV>
<P><B><FONT face=3D"Times New Roman" color=3Dnavy size=3D1><SPAN=20
style=3D"FONT-WEIGHT: bold; FONT-SIZE: 7.5pt; COLOR: navy; =
mso-no-proof: yes">David=20
A. Chapa </SPAN></FONT></B><FONT face=3DSymbol color=3Dnavy =
size=3D1><SPAN=20
style=3D"FONT-SIZE: 7.5pt; COLOR: navy; FONT-FAMILY: Symbol; =
mso-no-proof: yes">½</SPAN></FONT><FONT=20
color=3Dnavy size=3D1><SPAN=20
style=3D"FONT-SIZE: 7.5pt; COLOR: navy; mso-no-proof: yes"> Technical =
Advisor,=20
Technical Marketing </SPAN></FONT><FONT face=3DSymbol color=3Dnavy =
size=3D1><SPAN=20
style=3D"FONT-SIZE: 7.5pt; COLOR: navy; FONT-FAMILY: Symbol; =
mso-no-proof: yes">½</SPAN></FONT><FONT=20
color=3D#999999 size=3D1><SPAN=20
style=3D"FONT-SIZE: 7.5pt; COLOR: #999999; mso-no-proof: yes">=20
</SPAN></FONT><B><FONT color=3Dred size=3D1><SPAN=20
style=3D"FONT-WEIGHT: bold; FONT-SIZE: 7.5pt; COLOR: red; =
mso-no-proof: yes">ADIC</SPAN></FONT></B><FONT=20
color=3D#999999 size=3D1><SPAN=20
style=3D"FONT-SIZE: 7.5pt; COLOR: #999999; mso-no-proof: yes">=20
</SPAN></FONT><FONT face=3DSymbol color=3Dnavy size=3D1><SPAN=20
style=3D"FONT-SIZE: 7.5pt; COLOR: navy; FONT-FAMILY: Symbol; =
mso-no-proof: yes">½</SPAN></FONT><FONT=20
color=3Dnavy size=3D1><SPAN=20
style=3D"FONT-SIZE: 7.5pt; COLOR: navy; mso-no-proof: yes"> =
720.249.5836=20
</SPAN></FONT><FONT face=3DSymbol color=3Dnavy size=3D1><SPAN=20
style=3D"FONT-SIZE: 7.5pt; COLOR: navy; FONT-FAMILY: Symbol; =
mso-no-proof: yes">½<FONT FACE=3D"Courier New"></FONT>=20
</SPAN></FONT><FONT color=3Dnavy size=3D1><SPAN=20
style=3D"FONT-SIZE: 7.5pt; COLOR: navy; mso-no-proof: yes"><A=20
=
href=3D"mailto:david.chapa AT adic DOT com">david.chapa AT adic DOT
com</A></SPAN></FO=
NT><FONT=20
color=3Dnavy><SPAN=20
style=3D"COLOR: navy; mso-no-proof: =
yes"><o:p></o:p></SPAN></FONT></P>
<P><FONT face=3D"Times New Roman" color=3Dnavy size=3D1><SPAN=20
style=3D"FONT-SIZE: 7.5pt; COLOR: navy; mso-no-proof: yes">Pathlight =
VX -=20
Integrated Disk-to-Tape Backup - </SPAN></FONT><FONT =
color=3Dnavy><SPAN=20
style=3D"COLOR: navy; mso-no-proof: yes"><A =
href=3D"http://www.adic.com";><FONT=20
size=3D1><SPAN=20
style=3D"FONT-SIZE: =
7.5pt">http://www.adic.com</SPAN></FONT></A></SPAN></FONT><o:p></o:p></P=
></DIV>
<P class=3DMsoNormal style=3D"MARGIN-LEFT: 0.5in"><FONT face=3DTahoma =
size=3D2><SPAN=20
style=3D"FONT-SIZE: 10pt; FONT-FAMILY: Tahoma">-----Original=20
Message-----<BR><B><SPAN style=3D"FONT-WEIGHT: bold">From:</SPAN></B> =
</SPAN></FONT><st1:PersonName><FONT face=3DTahoma size=3D2><SPAN=20
style=3D"FONT-SIZE: 10pt; FONT-FAMILY: Tahoma">Parisi,=20
Aren</SPAN></FONT></st1:PersonName><FONT face=3DTahoma size=3D2><SPAN =
style=3D"FONT-SIZE: 10pt; FONT-FAMILY: Tahoma">=20
[mailto:Aren.Parisi AT wwireless DOT com<SPAN class=3DGramE>] <BR><B><SPAN=20
style=3D"FONT-WEIGHT: bold">Sent</SPAN></B></SPAN><B><SPAN=20
style=3D"FONT-WEIGHT: bold">:</SPAN></B> Thursday, December 04, 2003 =
1:08=20
PM<BR><B><SPAN style=3D"FONT-WEIGHT: bold">To:</SPAN></B>=20
'</SPAN></FONT><st1:PersonName><FONT face=3DTahoma size=3D2><SPAN=20
style=3D"FONT-SIZE: 10pt; FONT-FAMILY: =
Tahoma">veritas-bu AT mailman.eng.auburn DOT edu</SPAN></FONT></st1:PersonName>=
<FONT=20
face=3DTahoma size=3D2><SPAN=20
style=3D"FONT-SIZE: 10pt; FONT-FAMILY: Tahoma">'<BR><B><SPAN=20
style=3D"FONT-WEIGHT: bold">Subject:</SPAN></B> [Veritas-bu] Where in =
NBU are=20
drive settings (LTO-1 and LTO-2) tuned separatel y?</SPAN></FONT></P>
<P class=3DMsoNormal style=3D"MARGIN-LEFT: 0.5in"><FONT face=3D"Times =
New Roman"=20
size=3D3><SPAN style=3D"FONT-SIZE: =
12pt"><o:p> </o:p></SPAN></FONT></P>
<P style=3D"MARGIN-LEFT: 0.5in"><FONT face=3DCourier size=3D2><SPAN=20
style=3D"FONT-SIZE: 10pt; FONT-FAMILY: Courier">NBU 3.4.1 =
Master:HP-UX 11i=20
three-way service guard cluster Library:ADIC scalar10k IBM Ultrium=20
drives:20@LTO-1, 10@LTO-2 same cabinet. We have just benchmarked our =
new LTO-2=20
drives and they are NO FASTER than the LTO-1 drives. Are there =
separate=20
tuneables for the new drives we are not looking at? Buffer =
settings,=20
something undocumented perhaps? We have a 3GB (bound) FC =
ethernet=20
connection on the media server so I don't think it's a network =
bottleneck,=20
disk is XP-512 (rebadged Hitachi) screaming fast disk. Tested =
same class=20
on each type of drive, identical runtimes. ??? Thank you=20
experts.</SPAN></FONT><o:p></o:p></P>
<P style=3D"MARGIN-LEFT: 0.5in"><FONT face=3D"Century Gothic" =
color=3Dred=20
size=3D4><SPAN=20
style=3D"FONT-SIZE: 13.5pt; COLOR: red; FONT-FAMILY: 'Century =
Gothic'"> =20
Aren M. Parisi</SPAN></FONT> <FONT face=3DSymbol color=3Dred =
size=3D2><SPAN=20
style=3D"FONT-SIZE: 10pt; COLOR: red; FONT-FAMILY: =
Symbol">Ò</SPAN></FONT>=20
<BR><FONT face=3DCourier color=3Dblack size=3D2><SPAN=20
style=3D"FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: =
Courier"> Information=20
Technology</SPAN></FONT> <BR><FONT face=3DCourier color=3Dblack =
size=3D2><SPAN=20
style=3D"FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: Courier"> =
Western=20
Wireless Corp.</SPAN></FONT> <BR><FONT face=3DMonotype.com =
color=3Dblack=20
size=3D1><SPAN=20
style=3D"FONT-SIZE: 7.5pt; COLOR: black; FONT-FAMILY: =
'Monotype.com'">(425)313-5225=20
mob.(206)795-6631</SPAN></FONT> <BR> <FONT face=3D"Small Fonts" =
color=3Dblack=20
size=3D1><SPAN=20
style=3D"FONT-SIZE: 7.5pt; COLOR: black; FONT-FAMILY: 'Small =
Fonts'">Where are=20
we going and why am I in this handbasket?</SPAN></FONT>=20
<o:p></o:p></P></DIV></BLOCKQUOTE></BODY></HTML>
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