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Hi Mr Bair,
I have seen this happening before. The cause of this is probably during
servicing of one of the drives in your library. So when the drive is
replaced, it is taken offline, then if so happens that the Win2k was doing
some Device Scanning at the time, then the Device Files would be out of
order when the drives do come back online.
Remedies:-
1. Check your Router configurations to see if there are any additional
settings that needed to be set to address this problem
2. Check your SDLT320 driver versions. I strongly recommend that you use
Quantum drivers.
3. Run tpautoconf -show to verify which one is being mixed up. For example,
if the first 4 are ok, only the last 4 are mixed up, then under Computer
Management->Device Manager->Tape Drives. You should see all your 8 SDLT
drives. In order to get the Device Files in correct order, you will need to
uninstall those drives. In this example, you will need to uninstall the last
4 drives. You can verify this by checking their LUNs. Right-click the
device->Uninstall. You must uninstall all the 4 drives. Then do a "scan for
hardware changes" and all should be aye-okay. Use tpautoconf -show to
verify.
Also, not too sure about NBU4.5, but in my experience, I usually disable
Removable Storage service. :)
Good luck,
David Chan
-----Original Message-----
From: Bair, Christopher [mailto:cbair AT freemarkets DOT com]
Sent: Wednesday, November 19, 2003 2:18 AM
To: veritas-bu AT mailman.eng.auburn DOT edu
Subject: [Veritas-bu] Drive problem
I have a Compaq ESL9000 which is connected through a Compaq Network storage
Router M2402 which houses 8 SDLT 160/320 drives. The problem I am seeing is
this. When the OS finds these drives (win2k sp4), it is finding them out of
order. That is, the LUN's are not ordered the same as they are in the
storage router or library. What this does is causes the software (netbackup
datacenter 4.5 MP3) to see the drives out of order. This in turn is causing
the drives to go down periodically with the following in the error logs:
Fatal open error on COMPAQSDLT3204 (device 4, \\.\Tape6): The system cannot
find the file specified. DOWN'ing it
As of last week, I had 6 drives in the library, and the system did not have
this problem. Adding the additional drives is causing this strange behavior,
and I was hoping that someone might be able to offer some help.
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<DIV><SPAN class=180381405-19112003><FONT face=Verdana color=#0000ff size=2>Hi
Mr Bair,</FONT></SPAN></DIV>
<DIV><SPAN class=180381405-19112003><FONT face=Verdana color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=180381405-19112003><FONT face=Verdana color=#0000ff size=2>I
have seen this happening before. The cause of this is probably during servicing
of one of the drives in your library. So when the drive is replaced, it is
taken
offline, then if so happens that the Win2k was doing some Device Scanning at
the
time, then the Device Files would be out of order when the drives do come back
online. </FONT></SPAN></DIV>
<DIV><SPAN class=180381405-19112003><FONT face=Verdana color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=180381405-19112003><FONT face=Verdana color=#0000ff
size=2>Remedies:-</FONT></SPAN></DIV>
<DIV><SPAN class=180381405-19112003><FONT face=Verdana color=#0000ff size=2>1.
Check your Router configurations to see if there are any additional settings
that needed to be set to address this problem</FONT></SPAN></DIV>
<DIV><SPAN class=180381405-19112003><FONT face=Verdana color=#0000ff size=2>2.
Check your SDLT320 driver versions. I strongly recommend that you use Quantum
drivers.</FONT></SPAN></DIV>
<DIV><SPAN class=180381405-19112003><FONT face=Verdana color=#0000ff size=2>3.
Run tpautoconf -show to verify which one is being mixed up. For example, if the
first 4 are ok, only the last 4 are mixed up, then under Computer
Management->Device Manager->Tape Drives. You should see all your 8
SDLT drives. In order to get the Device Files in correct order, you will need
to
uninstall those drives. In this example, you will need to uninstall the last 4
drives. You can verify this by checking their LUNs. Right-click the
device->Uninstall. You must uninstall all the 4 drives. Then do a "scan for
hardware changes" and all should be aye-okay. Use tpautoconf -show to verify.
</FONT></SPAN></DIV>
<DIV><SPAN class=180381405-19112003><FONT face=Verdana color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=180381405-19112003><FONT face=Verdana color=#0000ff
size=2>Also, not too sure about NBU4.5, but in my experience, I usually disable
Removable Storage service. :)</FONT></SPAN></DIV>
<DIV><SPAN class=180381405-19112003><FONT face=Verdana color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=180381405-19112003><FONT face=Verdana color=#0000ff
size=2>Good
luck,</FONT></SPAN></DIV>
<DIV><SPAN class=180381405-19112003><FONT face=Verdana color=#0000ff
size=2>David Chan</FONT></SPAN></DIV>
<BLOCKQUOTE dir=ltr style="MARGIN-RIGHT: 0px">
<DIV class=OutlookMessageHeader dir=ltr align=left><FONT face=Tahoma
size=2>-----Original Message-----<BR><B>From:</B> Bair, Christopher
[mailto:cbair AT freemarkets DOT com]<BR><B>Sent:</B> Wednesday, November 19,
2003
2:18 AM<BR><B>To:</B> veritas-bu AT mailman.eng.auburn DOT
edu<BR><B>Subject:</B>
[Veritas-bu] Drive problem<BR><BR></FONT></DIV>
<DIV class=Section1>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">I have a Compaq ESL9000 which is
connected through <SPAN class=GramE>a Compaq</SPAN> Network storage Router
M2402 which houses 8 SDLT 160/320 drives. The problem I am seeing is this.
When the OS finds these drives (win2k sp4), it is finding them out of order.
That is, the <SPAN class=SpellE>LUN’s</SPAN> are not ordered the same
as they
are in the storage router or library. What this does is causes the software
(<SPAN class=SpellE>netbackup</SPAN> datacenter 4.5 MP3) to see the drives
out
of order. This in turn is causing the drives to go down periodically with the
following in the error logs:<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY:
Arial"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face="MS Shell Dlg" size=1><SPAN
style="FONT-SIZE: 8.5pt; FONT-FAMILY: 'MS Shell Dlg'">Fatal open error on
COMPAQSDLT3204 (device 4, \\.\Tape6): The system cannot find the file
specified.<SPAN style="mso-spacerun: yes"> </SPAN><SPAN
class=SpellE>DOWN'ing</SPAN> it<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face="MS Shell Dlg" size=1><SPAN
style="FONT-SIZE: 8.5pt; FONT-FAMILY: 'MS Shell
Dlg'"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">As of last week, I had 6 drives
in
the library, and the system did not have this problem. Adding the additional
drives is causing this strange behavior, and I was hoping that someone might
be able to offer some
help.<o:p></o:p></SPAN></FONT></P></DIV></BLOCKQUOTE></BODY></HTML>
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