Veritas-bu

[Veritas-bu] Media Write Error Problem

2004-05-16 00:05:56
Subject: [Veritas-bu] Media Write Error Problem
From: david.chapa AT adic DOT com (David Chapa)
Date: Sat, 15 May 2004 22:05:56 -0600
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Well taking the perspective of the software logic, what they are
tracking and watching it is difficult to discern what is a physical tape
drive problem and what it a physical media cartridge problem.  It should
however use a different drive when it retries.
=20
I haven't heard of a way to do what you propose.=20
=20
David A. Chapa * Technical Advisor * ADIC * 720.249.5836 * 720.272.8452
cell *  david.chapa AT adic DOT com <mailto:david.chapa AT adic DOT com>=20
HIGH PERFORMANCE, SCALABLE, RELIABLE - http://www.adic.com/gopathlightvx
<http://www.adic.com/gopathlightvx>=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 WILLIAMS,
KRISTOPHER L
Sent: Friday, May 14, 2004 3:54 PM
To: veritas-bu AT mailman.eng.auburn DOT edu
Subject: [Veritas-bu] Media Write Error Problem
=20
In our Windows environment (Win2k Master and media servers running NBU
5.0GA) we occasionally get jobs that fail with media write errors. The
problem is they are setup to retry. When they run the second time, they
try to use the same media id as the first run. This causes the whole job
to fail because that media is still bad. Is there a way in NetBackup to
force the retry job to go to a different tape? It seems pretty dumb to
retry a job that ended with a media write error to the same bad tape a
second time. Anyone have any ideas?
=20
=20
Thanks!
=20
Kris

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<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'>Well taking the perspective of the
software logic, what they are tracking and watching it is difficult to =
discern
what <span class=3DGramE>is a physical tape drive problem</span> and =
what it a
physical media cartridge problem. <span =
style=3D'mso-spacerun:yes'>&nbsp;</span>It
should however use a different drive when it =
retries.<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><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'>I haven&#8217;t heard of a way to =
do what
you propose. <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>

<div>

<p><b><font size=3D1 color=3Dnavy face=3D"Times New Roman"><span =
style=3D'font-size:
7.5pt;color:navy;font-weight:bold;mso-no-proof:yes'>David A. Chapa =
</span></font></b><font
size=3D1 color=3Dnavy face=3DSymbol><span =
style=3D'font-size:7.5pt;font-family:Symbol;
color:navy;mso-no-proof:yes'>&frac12;</span></font><font size=3D1 =
color=3Dnavy><span
style=3D'font-size:7.5pt;color:navy;mso-no-proof:yes'> Technical Advisor =
</span></font><font
size=3D1 color=3Dnavy face=3DSymbol><span =
style=3D'font-size:7.5pt;font-family:Symbol;
color:navy;mso-no-proof:yes'>&frac12;</span></font><font size=3D1 =
color=3D"#999999"><span
style=3D'font-size:7.5pt;color:#999999;mso-no-proof:yes'> =
</span></font><b><font
size=3D1 color=3Dred><span =
style=3D'font-size:7.5pt;color:red;font-weight:bold;
mso-no-proof:yes'>ADIC</span></font></b><font size=3D1 =
color=3D"#999999"><span
style=3D'font-size:7.5pt;color:#999999;mso-no-proof:yes'> =
</span></font><font
size=3D1 color=3Dnavy face=3DSymbol><span =
style=3D'font-size:7.5pt;font-family:Symbol;
color:navy;mso-no-proof:yes'>&frac12;</span></font><font size=3D1 =
color=3Dnavy><span
style=3D'font-size:7.5pt;color:navy;mso-no-proof:yes'> 720.249.5836 =
</span></font><font
size=3D1 color=3Dnavy face=3DSymbol><span =
style=3D'font-size:7.5pt;font-family:Symbol;
color:navy;mso-no-proof:yes'>&frac12; 720.272.8452 =
</span></font><em><i><font size=3D1
color=3Dnavy face=3D"Times New Roman"><span =
style=3D'font-size:7.5pt;color:navy;
mso-no-proof:yes'>cell</span></font></i></em><font size=3D1 =
color=3Dnavy><span
style=3D'font-size:7.5pt;color:navy;mso-no-proof:yes'> =
</span></font><font
size=3D1 color=3Dnavy face=3DSymbol><span =
style=3D'font-size:7.5pt;font-family:Symbol;
color:navy;mso-no-proof:yes'>&frac12; </span></font><em><i><font =
size=3D1 color=3Dnavy
face=3D"Times New Roman"><span =
style=3D'font-size:7.5pt;color:navy;mso-no-proof:
yes'>&nbsp;</span></font></i></em><font color=3Dnavy><span =
style=3D'color:navy;
mso-no-proof:yes'><a href=3D"mailto:david.chapa AT adic DOT com"><font =
size=3D1><span
style=3D'font-size:7.5pt'>david.chapa AT adic DOT 
com</span></font></a><o:p></o:=
p></span></font></p>

<p><font size=3D1 color=3Dnavy face=3D"Times New Roman"><span =
style=3D'font-size:7.5pt;
color:navy;mso-no-proof:yes'>HIGH PERFORMANCE, SCALABLE, RELIABLE =
-&nbsp;</span></font><font
color=3Dnavy><span style=3D'color:navy;mso-no-proof:yes'><a
href=3D"http://www.adic.com/gopathlightvx";><font size=3D1><span =
style=3D'font-size:
7.5pt'>http://www.adic.com/gopathlightvx</span></font></a></span></font><=
o:p></o:p></p>

</div>

<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> =
</span></font><st1:PersonName><font
 size=3D2 face=3DTahoma><span =
style=3D'font-size:10.0pt;font-family:Tahoma'>veritas-bu-admin AT mailman DOT 
en=
g.auburn.edu</span></font></st1:PersonName><font
size=3D2 face=3DTahoma><span =
style=3D'font-size:10.0pt;font-family:Tahoma'> =
[mailto:</span></font><st1:PersonName><font
 size=3D2 face=3DTahoma><span =
style=3D'font-size:10.0pt;font-family:Tahoma'>veritas-bu-admin AT mailman DOT 
en=
g.auburn.edu</span></font></st1:PersonName><font
size=3D2 face=3DTahoma><span =
style=3D'font-size:10.0pt;font-family:Tahoma'>] <b><span
style=3D'font-weight:bold'>On Behalf Of </span></b>WILLIAMS, KRISTOPHER =
L<br>
<b><span style=3D'font-weight:bold'>Sent:</span></b> Friday, May 14, =
2004 3:54 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> =
[</span></font><st1:PersonName><font
 size=3D2 face=3DTahoma><span =
style=3D'font-size:10.0pt;font-family:Tahoma'>Veritas</span></font></st1:=
PersonName><font
size=3D2 face=3DTahoma><span =
style=3D'font-size:10.0pt;font-family:Tahoma'>-bu] Media
Write Error Problem</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 class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D3 =
color=3Dnavy
face=3D"Times New Roman"><span style=3D'font-size:12.0pt;color:navy'>In =
our Windows
environment (Win2k Master and media servers running NBU 5.0GA) we =
occasionally
get jobs that fail with media write errors. The problem is they are =
setup to
retry. When they run the second time, they try to use the same media id =
as the
first run. This causes the whole job to fail because that media is still =
bad.
Is there a way in NetBackup to force the retry job to go to a different =
tape?
It seems pretty dumb to retry a job that ended with a media write error =
to the
same bad tape a second time. Anyone have any =
ideas?</span></font><o:p></o:p></p>

<p class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D2 =
color=3Dnavy face=3DArial><span
style=3D'font-size:10.0pt;font-family:Arial;color:navy'>&nbsp;</span></fo=
nt><o:p></o:p></p>

<p class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D2 =
color=3Dnavy face=3DArial><span
style=3D'font-size:10.0pt;font-family:Arial;color:navy'>&nbsp;</span></fo=
nt><o:p></o:p></p>

<p class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D2 =
color=3Dnavy face=3DArial><span
style=3D'font-size:10.0pt;font-family:Arial;color:navy'>Thanks!</span></f=
ont><o:p></o:p></p>

<p class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D2 =
color=3Dnavy face=3DArial><span
style=3D'font-size:10.0pt;font-family:Arial;color:navy'>&nbsp;</span></fo=
nt><o:p></o:p></p>

<p class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D2 =
color=3Dnavy face=3DArial><span
style=3D'font-size:10.0pt;font-family:Arial;color:navy'>Kris</span></font=
><o:p></o:p></p>

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