Veritas-bu

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

2003-12-05 11:34:20
Subject: [Veritas-bu] Where in NBU are drive settings (LTO-1 and LTO-2) tuned separatel y?
From: TWu AT PPC DOT com (Tommy Wu)
Date: Fri, 5 Dec 2003 11:34:20 -0500
This is a multi-part message in MIME format.

------_=_NextPart_001_01C3BB4D.A25EBE0E
Content-Type: text/plain;
        charset="us-ascii"
Content-Transfer-Encoding: quoted-printable

How did you determine the bottleneck? Check the wait time in the bptm
log (grep for times or wait). We are getting 50MB/Sec using multiplexing
four backup streams to one LTO 2 tape drive.
Tommy
=20
-----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 Parisi,
Aren
Sent: Thursday, December 04, 2003 3:08 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?
=20
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 *=20
 Information Technology=20
  Western Wireless Corp.=20
(425)313-5225 mob.(206)795-6631=20
 Where are we going and why am I in this handbasket?=20

------_=_NextPart_001_01C3BB4D.A25EBE0E
Content-Type: text/html;
        charset="us-ascii"
Content-Transfer-Encoding: quoted-printable

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2//EN">
<html xmlns:o=3D"urn:schemas-microsoft-com:office:office" =
xmlns:w=3D"urn:schemas-microsoft-com:office:word" =
xmlns=3D"http://www.w3.org/TR/REC-html40";>

<head>
<META HTTP-EQUIV=3D"Content-Type" CONTENT=3D"text/html; =
charset=3Dus-ascii">


<meta name=3DProgId content=3DWord.Document>
<meta name=3DGenerator content=3D"Microsoft Word 10">
<meta name=3DOriginator content=3D"Microsoft Word 10">
<link rel=3DFile-List href=3D"cid:[email protected]">
<title>Where in NBU are drive settings (LTO-1 and LTO-2) tuned =
separately?</title>
<!--[if gte mso 9]><xml>
 <o:OfficeDocumentSettings>
  <o:DoNotRelyOnCSS/>
 </o:OfficeDocumentSettings>
</xml><![endif]--><!--[if gte mso 9]><xml>
 <w:WordDocument>
  <w:SpellingState>Clean</w:SpellingState>
  <w:GrammarState>Clean</w:GrammarState>
  <w:DocumentKind>DocumentEmail</w:DocumentKind>
  <w:EnvelopeVis/>
  <w:BrowserLevel>MicrosoftInternetExplorer4</w:BrowserLevel>
 </w:WordDocument>
</xml><![endif]-->
<style>
<!--
 /* Font Definitions */
 @font-face
        {font-family:Courier;
        panose-1:2 7 4 9 2 2 5 2 4 4;
        mso-font-charset:0;
        mso-generic-font-family:modern;
        mso-font-format:other;
        mso-font-pitch:fixed;
        mso-font-signature:3 0 0 0 1 0;}
@font-face
        {font-family:Tahoma;
        panose-1:2 11 6 4 3 5 4 4 2 4;
        mso-font-charset:0;
        mso-generic-font-family:swiss;
        mso-font-pitch:variable;
        mso-font-signature:1627421319 -2147483648 8 0 66047 0;}
@font-face
        {font-family:"Century Gothic";
        panose-1:2 11 5 2 2 2 2 2 2 4;
        mso-font-charset:0;
        mso-generic-font-family:swiss;
        mso-font-pitch:variable;
        mso-font-signature:647 0 0 0 159 0;}
@font-face
        {font-family:"Monotype\.com";
        panose-1:0 0 0 0 0 0 0 0 0 0;
        mso-font-alt:"Times New Roman";
        mso-font-charset:0;
        mso-generic-font-family:roman;
        mso-font-format:other;
        mso-font-pitch:auto;
        mso-font-signature:0 0 0 0 0 0;}
@font-face
        {font-family:"Small Fonts";
        panose-1:0 0 0 0 0 0 0 0 0 0;
        mso-font-alt:"Times New Roman";
        mso-font-charset:0;
        mso-generic-font-family:roman;
        mso-font-format:other;
        mso-font-pitch:auto;
        mso-font-signature:0 0 0 0 0 0;}
 /* Style Definitions */
 p.MsoNormal, li.MsoNormal, div.MsoNormal
        {mso-style-parent:"";
        margin:0in;
        margin-bottom:.0001pt;
        mso-pagination:widow-orphan;
        font-size:12.0pt;
        font-family:"Times New Roman";
        mso-fareast-font-family:"Times New Roman";}
a:link, span.MsoHyperlink
        {color:blue;
        text-decoration:underline;
        text-underline:single;}
a:visited, span.MsoHyperlinkFollowed
        {color:purple;
        text-decoration:underline;
        text-underline:single;}
p
        {mso-margin-top-alt:auto;
        margin-right:0in;
        mso-margin-bottom-alt:auto;
        margin-left:0in;
        mso-pagination:widow-orphan;
        font-size:12.0pt;
        font-family:"Times New Roman";
        mso-fareast-font-family:"Times New Roman";}
span.EmailStyle18
        {mso-style-type:personal-reply;
        mso-style-noshow:yes;
        mso-ansi-font-size:10.0pt;
        mso-bidi-font-size:10.0pt;
        font-family:Arial;
        mso-ascii-font-family:Arial;
        mso-hansi-font-family:Arial;
        mso-bidi-font-family:Arial;
        color:navy;}
span.SpellE
        {mso-style-name:"";
        mso-spl-e:yes;}
@page Section1
        {size:8.5in 11.0in;
        margin:1.0in 1.25in 1.0in 1.25in;
        mso-header-margin:.5in;
        mso-footer-margin:.5in;
        mso-paper-source:0;}
div.Section1
        {page:Section1;}
-->
</style>
<!--[if gte mso 10]>
<style>
 /* Style Definitions */=20
 table.MsoNormalTable
        {mso-style-name:"Table Normal";
        mso-tstyle-rowband-size:0;
        mso-tstyle-colband-size:0;
        mso-style-noshow:yes;
        mso-style-parent:"";
        mso-padding-alt:0in 5.4pt 0in 5.4pt;
        mso-para-margin:0in;
        mso-para-margin-bottom:.0001pt;
        mso-pagination:widow-orphan;
        font-size:10.0pt;
        font-family:"Times New Roman";}
</style>
<![endif]-->
</head>

<body lang=3DEN-US link=3Dblue vlink=3Dpurple =
style=3D'tab-interval:.5in'>

<div class=3DSection1>

<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'>How did you determine the =
bottleneck? Check
the wait time in the <span class=3DSpellE>bptm</span> log (<span =
class=3DSpellE>grep</span>
for times or wait). We are getting 50MB/Sec using multiplexing four =
backup
streams to one LTO 2 tape drive.<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'>Tommy<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'><o:p>&nbsp;</o:p></span></font></p>

<p class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D2 =
face=3DTahoma><span
style=3D'font-size:10.0pt;font-family:Tahoma'>-----Original =
Message-----<br>
<b><span style=3D'font-weight:bold'>From:</span></b>
veritas-bu-admin AT mailman.eng.auburn DOT edu
[mailto:veritas-bu-admin AT mailman.eng.auburn DOT edu] <b><span =
style=3D'font-weight:
bold'>On Behalf Of </span></b>Parisi, Aren<br>
<b><span style=3D'font-weight:bold'>Sent:</span></b> Thursday, December =
04, 2003
3:08 PM<br>
<b><span style=3D'font-weight:bold'>To:</span></b>
veritas-bu AT mailman.eng.auburn DOT edu<br>
<b><span style=3D'font-weight:bold'>Subject:</span></b> [Veritas-bu] =
Where in NBU
are drive settings (LTO-1 and LTO-2) tuned separatel =
y?</span></font></p>

<p class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D3 =
face=3D"Times New Roman"><span
style=3D'font-size:12.0pt'><o:p>&nbsp;</o:p></span></font></p>

<p style=3D'margin-left:.5in'><font size=3D2 face=3DCourier><span =
style=3D'font-size:
10.0pt;font-family:Courier'>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?&nbsp; Buffer settings, something undocumented =
perhaps?&nbsp; 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.&nbsp; Tested same class on each type of drive, identical runtimes. =
???
Thank you experts.</span></font><o:p></o:p></p>

<p style=3D'margin-left:.5in'><font size=3D4 color=3Dred face=3D"Century =
Gothic"><span
style=3D'font-size:13.5pt;font-family:"Century =
Gothic";color:red'>&nbsp;&nbsp;&nbsp;&nbsp;
Aren M. Parisi</span></font> <font size=3D2 color=3Dred =
face=3DSymbol><span
style=3D'font-size:10.0pt;font-family:Symbol;color:red'>&Ograve;</span></=
font> <br>
<font size=3D2 color=3Dblack face=3DCourier><span =
style=3D'font-size:10.0pt;font-family:
Courier;color:black'>&nbsp;Information Technology</span></font> <br>
<font size=3D2 color=3Dblack face=3DCourier><span =
style=3D'font-size:10.0pt;font-family:
Courier;color:black'>&nbsp; Western Wireless Corp.</span></font> <br>
<font size=3D1 color=3Dblack face=3DMonotype.com><span =
style=3D'font-size:7.5pt;
font-family:"Monotype\.com";color:black'>(425)313-5225 =
mob.(206)795-6631</span></font>
<br>
&nbsp;<font size=3D1 color=3Dblack face=3D"Small Fonts"><span =
style=3D'font-size:7.5pt;
font-family:"Small Fonts";color:black'>Where are we going and why am I =
in this
handbasket?</span></font> <o:p></o:p></p>

</div>

</body>

</html>

------_=_NextPart_001_01C3BB4D.A25EBE0E--