[Veritas-bu] Media Write Errors, Exit Status 84

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I have the same setup as you except we are using LTO2 drives.  I have
had about 15 media write errors in the last 15 months.  I don't recall
how many tapes have been frozen, but it has been more then normal in my
opinion.  We are running Datacenter 4.5 MP5 here.  We use Maxell tapes.
I have one tape drive that constantly downs itself, but diagnostics
doesn't show anything on the L700e. =20
=20
Thanks,

Jim
=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
Cierkowski, Wayne
Sent: Wednesday, January 05, 2005 9:07 AM
To: veritas-bu AT mailman.eng.auburn DOT edu
Subject: [Veritas-bu] Media Write Errors, Exit Status 84



I'd like to get some feed back as to everyone's experience concerning
Media write errors. I have 4 sites that are almost identical, Compaq
servers, Compaq HBA's, STK L700's and SDLT320 drives. The only
difference between these sites would be number of processors in the
server, amount of memory in the server and the number of SDLT drives.
One site in particular has racked up over 182 frozen tapes since I
implemented the backup solution which is only 22 months old.=20

=20

First question, does 182 frozen media in only 22 months seem to be a
high rate? Media is always brand new and either Fuji or Quantum.

=20

STK has been working with us to try to resolve this issue and actually
gave us 120 brand new tapes last week. We pulled out all of our existing
tapes and loaded up the 120 new ones. Over the weekend we had 3 CRC's
media write errors. The percentage seems kind of high.=20

=20

I'm running NetBackup 4.5 at the MP6 level.=20

=20

Is this a normal level for CRC's with SDLT?=20

=20

Is it the technology?=20

=20

Anyone else out there having similar issues?=20

=20

We are actually at the point of considering changing technology to LTO
drives and media. We have another small site due for replacement and so
far that seems to be the road we are taking because of the SDLT CRC
issue.=20

=20

Many thanks =20

=20
=20
******************************************************=20
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<DIV dir=3Dltr align=3Dleft><SPAN class=3D908194614-05012005><FONT =
face=3DArial=20
color=3D#0000ff size=3D2>I have the same setup as you except we are =
using LTO2=20
drives.&nbsp; I have had about 15 media write errors in the last 15=20
months.&nbsp; I don't recall how many tapes have been frozen, but it has =
been=20
more then normal in my opinion.&nbsp; We are running Datacenter 4.5 MP5=20
here.&nbsp; We use Maxell tapes.&nbsp; I have one tape drive that =
constantly=20
downs itself, but diagnostics doesn't show anything on the L700e.&nbsp;=20
</FONT></SPAN></DIV>
<DIV dir=3Dltr align=3Dleft><SPAN class=3D908194614-05012005><FONT =
face=3DArial=20
color=3D#0000ff size=3D2></FONT></SPAN>&nbsp;</DIV>
<DIV dir=3Dltr align=3Dleft><SPAN class=3D908194614-05012005><FONT =
face=3DArial=20
color=3D#0000ff size=3D2>Thanks,<BR><BR>Jim</FONT></SPAN></DIV>
<DIV dir=3Dltr align=3Dleft><SPAN =
class=3D908194614-05012005></SPAN>&nbsp;</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>Cierkowski,=20
Wayne<BR><B>Sent:</B> Wednesday, January 05, 2005 9:07 AM<BR><B>To:</B>=20
veritas-bu AT mailman.eng.auburn DOT edu<BR><B>Subject:</B> [Veritas-bu] Media =
Write=20
Errors, Exit Status 84<BR></FONT><BR></DIV>
<DIV></DIV>
<DIV>
<DIV class=3DSection1>
<P class=3DMsoNormal><FONT face=3DArial size=3D2><SPAN=20
style=3D"FONT-SIZE: 10pt; FONT-FAMILY: Arial">I&#8217;d like to get some =
feed back as to=20
everyone&#8217;s experience concerning Media write errors. I have 4 =
sites that are=20
almost identical, Compaq servers, Compaq HBA&#8217;s, STK L700&#8217;s =
and SDLT320 drives.=20
The only difference between these sites would be number of processors in =
the=20
server, amount of memory in the server and the number of SDLT drives. =
One site=20
in particular has racked up over 182 frozen tapes since I implemented =
the backup=20
solution which is only 22 months old. </SPAN></FONT></P>
<P class=3DMsoNormal><FONT face=3DArial size=3D2><SPAN=20
style=3D"FONT-SIZE: 10pt; FONT-FAMILY: Arial"></SPAN></FONT>&nbsp;</P>
<P class=3DMsoNormal><FONT face=3DArial size=3D2><SPAN=20
style=3D"FONT-SIZE: 10pt; FONT-FAMILY: Arial">First question, does 182 =
frozen=20
media in only 22 months seem to be a high rate? Media is always brand =
new and=20
either Fuji or Quantum.</SPAN></FONT></P>
<P class=3DMsoNormal><FONT face=3DArial size=3D2><SPAN=20
style=3D"FONT-SIZE: 10pt; FONT-FAMILY: Arial"></SPAN></FONT>&nbsp;</P>
<P class=3DMsoNormal><FONT face=3DArial size=3D2><SPAN=20
style=3D"FONT-SIZE: 10pt; FONT-FAMILY: Arial">STK has been working with =
us to try=20
to resolve this issue and actually gave us 120 brand new tapes last =
week. We=20
pulled out all of our existing tapes and loaded up the 120 new ones. =
Over the=20
weekend we had 3 CRC&#8217;s media write errors. The percentage seems =
kind of high.=20
</SPAN></FONT></P>
<P class=3DMsoNormal><FONT face=3DArial size=3D2><SPAN=20
style=3D"FONT-SIZE: 10pt; FONT-FAMILY: Arial"></SPAN></FONT>&nbsp;</P>
<P class=3DMsoNormal><FONT face=3DArial size=3D2><SPAN=20
style=3D"FONT-SIZE: 10pt; FONT-FAMILY: Arial">I&#8217;m running =
NetBackup 4.5 at the MP6=20
level. </SPAN></FONT></P>
<P class=3DMsoNormal><FONT face=3DArial size=3D2><SPAN=20
style=3D"FONT-SIZE: 10pt; FONT-FAMILY: Arial"></SPAN></FONT>&nbsp;</P>
<P class=3DMsoNormal><FONT face=3DArial size=3D2><SPAN=20
style=3D"FONT-SIZE: 10pt; FONT-FAMILY: Arial">Is this a normal level for =
CRC&#8217;s=20
with SDLT? </SPAN></FONT></P>
<P class=3DMsoNormal><FONT face=3DArial size=3D2><SPAN=20
style=3D"FONT-SIZE: 10pt; FONT-FAMILY: Arial"></SPAN></FONT>&nbsp;</P>
<P class=3DMsoNormal><FONT face=3DArial size=3D2><SPAN=20
style=3D"FONT-SIZE: 10pt; FONT-FAMILY: Arial">Is it the technology?=20
</SPAN></FONT></P>
<P class=3DMsoNormal><FONT face=3DArial size=3D2><SPAN=20
style=3D"FONT-SIZE: 10pt; FONT-FAMILY: Arial"></SPAN></FONT>&nbsp;</P>
<P class=3DMsoNormal><FONT face=3DArial size=3D2><SPAN=20
style=3D"FONT-SIZE: 10pt; FONT-FAMILY: Arial">Anyone else out there =
having similar=20
issues? </SPAN></FONT></P>
<P class=3DMsoNormal><FONT face=3DArial size=3D2><SPAN=20
style=3D"FONT-SIZE: 10pt; FONT-FAMILY: Arial"></SPAN></FONT>&nbsp;</P>
<P class=3DMsoNormal><FONT face=3DArial size=3D2><SPAN=20
style=3D"FONT-SIZE: 10pt; FONT-FAMILY: Arial">We are actually at the =
point of=20
considering changing technology to LTO drives and media. We have another =
small=20
site due for replacement and so far that seems to be the road we are =
taking=20
because of the SDLT CRC issue. </SPAN></FONT></P>
<P class=3DMsoNormal><FONT face=3DArial size=3D2><SPAN=20
style=3D"FONT-SIZE: 10pt; FONT-FAMILY: Arial"></SPAN></FONT>&nbsp;</P>
<P class=3DMsoNormal><FONT face=3DArial size=3D2><SPAN=20
style=3D"FONT-SIZE: 10pt; FONT-FAMILY: Arial">Many thanks=20
&nbsp;</SPAN></FONT></P></DIV></DIV>
<DIV><FONT face=3D"Courier New"></FONT>&nbsp;</DIV>
<DIV><FONT face=3D"Courier New"></FONT>&nbsp;</DIV>
<DIV><FONT=20
face=3D"Courier =
New">******************************************************</FONT>=20
</DIV>
<DIV><FONT face=3D"Courier New">
<DIV style=3D"FONT-SIZE: 9pt; FONT-FAMILY: Courier New"><FONT =
color=3Dblack=20
size=3D2>CONFIDENTIALITY NOTICE: This E-Mail is intended only for the =
use of the=20
individual or entity to whom it is addressed and may contain information =
that is=20
privileged, confidential and exempt from disclosure under applicable =
law. If you=20
have received this communication in error, please do not distribute and =
delete=20
the original message. Please notify the sender by E-Mail at the address =
shown.=20
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