Veritas-bu

[Veritas-bu] Where in NBU are drive settings (LTO-1 and LTO-2 ) tuned separatel y?

2003-12-05 19:12:56
Subject: [Veritas-bu] Where in NBU are drive settings (LTO-1 and LTO-2 ) tuned separatel y?
From: Aren.Parisi AT wwireless DOT com (Parisi, Aren)
Date: Fri, 5 Dec 2003 16:12:56 -0800
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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:[email protected], [email protected] 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&nbsp;hefty doc,=20
but I've found what I need (maybe?) on page 100.&nbsp; 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>&nbsp;</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>&nbsp;</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>&nbsp;</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>&nbsp;</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">&nbsp; </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">&frac12;</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">&frac12;</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">&frac12;</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">&frac12;<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>&nbsp;</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:[email protected], [email protected] 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?&nbsp; Buffer =
settings,=20
  something undocumented perhaps?&nbsp; 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.&nbsp; 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'">&nbsp;&nbsp;&nbsp;&nbsp;=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">&Ograve;</SPAN></FONT>=20
  <BR><FONT face=3DCourier color=3Dblack size=3D2><SPAN=20
  style=3D"FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: =
Courier">&nbsp;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">&nbsp; =
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>&nbsp;<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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