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I have a STK9714 with 6 Quantum DLT 7000 drives and a L180 with 10 Quantum
SDLT drives and over the years have seen this problem. After working with
Tech Support, We never figured out the root of the problem but I was told to
alter the cleaning schedule of the drives, I also replaced over 100 hundred
tapes, and several tape drives were replaced.
_____
From: veritas-bu-admin AT mailman.eng.auburn DOT edu
[mailto:veritas-bu-admin AT mailman.eng.auburn DOT edu] On Behalf Of Jim
Langston
Sent: Wednesday, January 05, 2005 9:50 AM
To: Cierkowski, Wayne; veritas-bu AT mailman.eng.auburn DOT edu
Subject: RE: [Veritas-bu] Media Write Errors, Exit Status 84
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.
Thanks,
Jim
_____
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.
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.
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.
I'm running NetBackup 4.5 at the MP6 level.
Is this a normal level for CRC's with SDLT?
Is it the technology?
Anyone else out there having similar issues?
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.
Many thanks
******************************************************
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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'>I have a STK9714 with 6 Quantum =
DLT 7000
drives and a L180 with 10 Quantum SDLT drives and over the years have =
seen this
problem. After working with Tech Support, We never figured out the root =
of the
problem but I was told to alter the cleaning schedule of the drives, I =
also
replaced over 100 hundred tapes, and several tape drives were =
replaced.<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> </o:p></span></font></p>=
<div>
<div class=3DMsoNormal align=3Dcenter style=3D'text-align:center'><font =
size=3D3
face=3D"Times New Roman"><span style=3D'font-size:12.0pt'>
<hr size=3D2 width=3D"100%" align=3Dcenter tabindex=3D-1>
</span></font></div>
<p class=3DMsoNormal><b><font size=3D2 face=3DTahoma><span =
style=3D'font-size:10.0pt;
font-family:Tahoma;font-weight:bold'>From:</span></font></b><font =
size=3D2
face=3DTahoma><span style=3D'font-size:10.0pt;font-family:Tahoma'>
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>Jim Langston<br>
<b><span style=3D'font-weight:bold'>Sent:</span></b> Wednesday, January =
05, 2005
9:50 AM<br>
<b><span style=3D'font-weight:bold'>To:</span></b> Cierkowski, Wayne;
veritas-bu AT mailman.eng.auburn DOT edu<br>
<b><span style=3D'font-weight:bold'>Subject:</span></b> RE: =
[Veritas-bu] Media
Write Errors, Exit Status 84</span></font><o:p></o:p></p>
</div>
<p class=3DMsoNormal><font size=3D3 face=3D"Times New Roman"><span =
style=3D'font-size:
12.0pt'><o:p> </o:p></span></font></p>
<p class=3DMsoNormal><font size=3D2 color=3Dblue face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:blue'>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. =
</span></font><o:p></o:p></p>
<p class=3DMsoNormal><font size=3D3 face=3D"Times New Roman"><span =
style=3D'font-size:
12.0pt'> <o:p></o:p></span></font></p>
<p class=3DMsoNormal><font size=3D2 color=3Dblue face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:blue'>Thanks,<br>
<br>
Jim</span></font><o:p></o:p></p>
<p class=3DMsoNormal><font size=3D3 face=3D"Times New Roman"><span =
style=3D'font-size:
12.0pt'> <o:p></o:p></span></font></p>
<p class=3DMsoNormal><font size=3D3 face=3D"Times New Roman"><span =
style=3D'font-size:
12.0pt'><o:p> </o:p></span></font></p>
<div class=3DMsoNormal align=3Dcenter style=3D'text-align:center'><font =
size=3D3
face=3D"Times New Roman"><span style=3D'font-size:12.0pt'>
<hr size=3D2 width=3D"100%" align=3Dcenter tabIndex=3D-1>
</span></font></div>
<p class=3DMsoNormal style=3D'margin-bottom:12.0pt'><b><font size=3D2 =
face=3DTahoma><span
style=3D'font-size:10.0pt;font-family:Tahoma;font-weight:bold'>From:</sp=
an></font></b><font
size=3D2 face=3DTahoma><span =
style=3D'font-size:10.0pt;font-family:Tahoma'>
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>Cierkowski, Wayne<br>
<b><span style=3D'font-weight:bold'>Sent:</span></b> Wednesday, January =
05, 2005
9:07 AM<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] =
Media Write
Errors, Exit Status 84</span></font><o:p></o:p></p>
<div>
<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>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. =
</span></font><o:p></o:p></p>
<p class=3DMsoNormal><font size=3D3 face=3D"Times New Roman"><span =
style=3D'font-size:
12.0pt'> <o:p></o:p></span></font></p>
<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>First question, does 182 frozen media in only 22 =
months seem
to be a high rate? Media is always brand new and either <st1:City =
w:st=3D"on"><st1:place
w:st=3D"on">Fuji</st1:place></st1:City> or =
Quantum.</span></font><o:p></o:p></p>
<p class=3DMsoNormal><font size=3D3 face=3D"Times New Roman"><span =
style=3D'font-size:
12.0pt'> <o:p></o:p></span></font></p>
<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>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. =
</span></font><o:p></o:p></p>
<p class=3DMsoNormal><font size=3D3 face=3D"Times New Roman"><span =
style=3D'font-size:
12.0pt'> <o:p></o:p></span></font></p>
<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>I’m running NetBackup 4.5 at the MP6 level. =
</span></font><o:p></o:p></p>
<p class=3DMsoNormal><font size=3D3 face=3D"Times New Roman"><span =
style=3D'font-size:
12.0pt'> <o:p></o:p></span></font></p>
<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>Is this a normal level for CRC’s with SDLT? =
</span></font><o:p></o:p></p>
<p class=3DMsoNormal><font size=3D3 face=3D"Times New Roman"><span =
style=3D'font-size:
12.0pt'> <o:p></o:p></span></font></p>
<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>Is it the technology? </span></font><o:p></o:p></p>
<p class=3DMsoNormal><font size=3D3 face=3D"Times New Roman"><span =
style=3D'font-size:
12.0pt'> <o:p></o:p></span></font></p>
<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>Anyone else out there having similar issues? =
</span></font><o:p></o:p></p>
<p class=3DMsoNormal><font size=3D3 face=3D"Times New Roman"><span =
style=3D'font-size:
12.0pt'> <o:p></o:p></span></font></p>
<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>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. </span></font><o:p></o:p></p>
<p class=3DMsoNormal><font size=3D3 face=3D"Times New Roman"><span =
style=3D'font-size:
12.0pt'> <o:p></o:p></span></font></p>
<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>Many thanks </span></font><o:p></o:p></p>
</div>
<div>
<p class=3DMsoNormal><font size=3D3 face=3D"Times New Roman"><span =
style=3D'font-size:
12.0pt'> <o:p></o:p></span></font></p>
</div>
<div>
<p class=3DMsoNormal><font size=3D3 face=3D"Times New Roman"><span =
style=3D'font-size:
12.0pt'> <o:p></o:p></span></font></p>
</div>
<div>
<p class=3DMsoNormal><font size=3D3 face=3D"Courier New"><span =
style=3D'font-size:12.0pt;
font-family:"Courier =
New"'>******************************************************</span></fon=
t>
<o:p></o:p></p>
</div>
<div>
<div>
<p class=3DMsoNormal><font size=3D2 color=3Dblack face=3D"Courier =
New"><span
style=3D'font-size:10.0pt;font-family:"Courier =
New";color:black'>CONFIDENTIALITY
NOTICE: This E-Mail is intended only for the use of the individual or =
entity to
whom it is addressed and may contain information that is privileged,
confidential and exempt from disclosure under applicable law. If you =
have
received this communication in error, please do not distribute and =
delete the
original message. Please notify the sender by E-Mail at the address =
shown.
Thank you for your compliance.</span></font><font size=3D1 =
face=3D"Courier New"><span
style=3D'font-size:9.0pt;font-family:"Courier New"'> =
<o:p></o:p></span></font></p>
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