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Depends on the tape type. I think DLT is rated for 100,000 passes. I set
my mount-limit count at 50,000 in response.
-M
-----Original Message-----
From: Markham, Richard [mailto:RMarkham AT hafeleamericas DOT com]
Sent: Wednesday, July 17, 2002 12:11 PM
To: Nblist (E-mail)
Subject: RE: [Veritas-bu] GUI exp. date
I assume that 20 years is a approx. shelf life as opposed to daily usage.
our implementors suggest
max mounts of 250 per tape. I'm curious of any views on that.
-----Original Message-----
From: Whelan, Patrick [mailto:Patrick.Whelan AT commerzbankib DOT com]
Sent: Wednesday, July 17, 2002 11:48 AM
To: 'Markham, Richard'; Nblist (E-mail)
Subject: RE: [Veritas-bu] GUI exp. date
First, are you sure your are asking the right question, the expiration date
for tapes is usually when the physical tape will be no good anymore, approx
20 years. The expiration date in Device Manager has nothing to do with the
images written to the tape. Second, do you set expiration dates for your
tapes? By default tapes never expire.
One important thing to remember. You can think of Media Manager and
NetBackup as two separate products, along with Storage Migrator. Remember
Media Manager is actually used by both NBU and SM(HSM), and can be used with
scripts or third party software using tpreq and tpumount. So when you look
at something using the Media Manager GUI's or commands you are only looking
at information about the physical tape. The assigned column is actually set
by either NBU or HSM or the vmchange command if you want to do it yourself.
All the other columns are under control of MM, and therefore not relevant to
NBU, etc.
I hope I haven't been too longwinded, but I have seen this question come up
many times, and thought I would try to set the record straight for once.
I'm sure that anything that I have misstated will be brought my attention,
unceremoniously, very quickly. Hope fully to the complete list, so others
can learn from my mistakes.
Yours sincerely,
Patrick Whelan
ZIT P 7.43 Data Backup Operation
_______________________________________________________________
Contact: Phone: +49 69 136 44927
E-Mail: Patrick.Whelan AT CommerzbankIB DOT com
Address: Commerzbank AG
Zentraler Servicebereich IT Produktion
C/S Services Investment Banking - ZIT P 7.43
Mainzer Landstr. 151 - DLZ, Bld. 1 - 06.52.0210
60261 Frankfurt
_______________________________________________________________
Of all the things I've lost, I miss my mind the most.
"NEW LYRICS TO BEATLES SONGS"
YESTERDAY
Yesterday,
All those backups seemed a waste of pay.
Now my database has gone away.
Oh I believe in yesterday.
Suddenly,
There's not half the files there used to be,
And there's a milestone hanging over me
The system crashed so suddenly.
I pushed something wrong
What it was I could not say.
Now all my data's gone
and I long for yesterday-ay-ay-ay.
Yesterday,
The need for back-ups seemed so far away.
I knew my data was all here to stay,
Now I believe in yesterday.
-----Original Message-----
From: Markham, Richard [mailto:RMarkham AT hafeleamericas DOT com]
Sent: Wednesday, July 17, 2002 5:00 PM
To: Nblist (E-mail)
Subject: [Veritas-bu] GUI exp. date
anyone having issues with the Media and Device Mgmt. GUI not
populating the expiration date column for the tapes within
a volume pool ? and perhaps a workaround ?
NB 3.4.2 Solaris 8
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<DIV><SPAN class=369343518-17072002><FONT face=Arial color=#0000ff
size=2>Depends on the tape type. I think DLT is rated for 100,000
passes. I set my mount-limit count at 50,000 in
response.</FONT></SPAN></DIV>
<DIV><SPAN class=369343518-17072002><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=369343518-17072002><FONT face=Arial color=#0000ff
size=2>-M</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> Markham, Richard
[mailto:RMarkham AT hafeleamericas DOT com]<BR><B>Sent:</B> Wednesday, July
17, 2002
12:11 PM<BR><B>To:</B> Nblist (E-mail)<BR><B>Subject:</B> RE: [Veritas-bu]
GUI
exp. date<BR><BR></FONT></DIV>
<DIV><FONT face=Arial color=#0000ff size=2><SPAN
class=062340718-17072002>I assume that 20 years is a approx. shelf life
as opposed to daily usage. our implementors suggest</SPAN></FONT></DIV>
<DIV><FONT face=Arial color=#0000ff size=2><SPAN class=062340718-17072002>max
mounts of 250 per tape. I'm curious of any views on
that.</SPAN></FONT></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> Whelan, Patrick
[mailto:Patrick.Whelan AT commerzbankib DOT com]<BR><B>Sent:</B> Wednesday,
July
17, 2002 11:48 AM<BR><B>To:</B> 'Markham, Richard'; Nblist
(E-mail)<BR><B>Subject:</B> RE: [Veritas-bu] GUI exp.
date<BR><BR></FONT></DIV>
<DIV><FONT face=Arial color=#0000ff size=2><SPAN
class=308443815-17072002>First, are you sure your are asking the right
question, the expiration date for tapes is usually when the physical tape
will be no good anymore, approx 20 years. The expiration date in Device
Manager has nothing to do with the images written to the tape. Second, do
you set expiration dates for your tapes? By default tapes never expire.
</SPAN></FONT></DIV>
<DIV><FONT face=Arial color=#0000ff size=2><SPAN
class=308443815-17072002></SPAN></FONT> </DIV>
<DIV><FONT face=Arial color=#0000ff size=2><SPAN
class=308443815-17072002>One important thing to remember. You can think of
Media Manager and NetBackup as two separate products, along with Storage
Migrator. Remember Media Manager is actually used by both NBU and SM(HSM),
and can be used with scripts or third party software using tpreq and
tpumount. So when you look at something using the Media Manager GUI's or
commands you are only looking at information about the physical tape. The
assigned column is actually set by either NBU or HSM or the vmchange
command
if you want to do it yourself. All the other columns are under control of
MM, and therefore not relevant to NBU, etc.</SPAN></FONT></DIV>
<DIV><FONT face=Arial color=#0000ff size=2><SPAN
class=308443815-17072002></SPAN></FONT> </DIV>
<DIV><FONT face=Arial color=#0000ff size=2><SPAN class=308443815-17072002>I
hope I haven't been too longwinded, but I have seen this question come up
many times, and thought I would try to set the record straight for
once.</SPAN></FONT></DIV>
<DIV><FONT face=Arial color=#0000ff size=2><SPAN
class=308443815-17072002></SPAN></FONT> </DIV>
<DIV><FONT face=Arial color=#0000ff size=2><SPAN
class=308443815-17072002>I'm sure that anything that I have misstated will
be brought my attention, unceremoniously, very quickly. Hope fully to the
complete list, so others can learn from my mistakes.</SPAN></FONT></DIV>
<DIV> </DIV><BR>
<P><FONT face=Arial size=2>Yours sincerely,</FONT> </P>
<P><B><FONT face=Arial color=#000000>Patrick Whelan</FONT></B> <BR><FONT
face=Arial color=#000000 size=2>ZIT P 7.43 Data Backup Operation</FONT> </P>
<P><FONT face=Arial color=#808080
size=1>_______________________________________________________________</FONT>
</P>
<P><FONT face=Arial color=#808080
size=1>Contact: Phone: +49
69 136 44927</FONT> <BR><FONT face=Arial color=#808080
size=1>
E-Mail:
Patrick.Whelan AT CommerzbankIB DOT com</FONT> </P>
<P><FONT face=Arial color=#808080
size=1>Address: Commerzbank
AG</FONT> <BR><FONT face=Arial color=#808080
size=1>
Zentraler Servicebereich IT
Produktion</FONT> <BR><FONT face=Arial color=#808080
size=1>
C/S Services Investment Banking
-
ZIT P 7.43</FONT> <BR><FONT face=Arial color=#808080
size=1>
Mainzer Landstr. 151 - DLZ, Bld.
1 - 06.52.0210</FONT> <BR><FONT face=Arial color=#808080
size=1>
60261 Frankfurt</FONT> <BR><FONT
face=Arial color=#808080
size=1>_______________________________________________________________</FONT>
<BR><B><FONT face="Times New Roman" color=#008080 size=4>Of all the things
I've lost, I miss my mind the mos</FONT></B><FONT face="Times New Roman"
color=#008080 size=4>t.</FONT> </P>
<P><FONT face="Courier New" size=2>"NEW LYRICS TO BEATLES SONGS"</FONT>
<BR><FONT face="Courier New" size=2>YESTERDAY</FONT> </P>
<P><FONT face="Courier New" size=2>Yesterday,</FONT> <BR><FONT
face="Courier New" size=2>All those backups seemed a waste of pay.</FONT>
<BR><FONT face="Courier New" size=2>Now my database has gone away.</FONT>
<BR><FONT face="Courier New" size=2>Oh I believe in yesterday.</FONT> </P>
<P><FONT face="Courier New" size=2>Suddenly,</FONT> <BR><FONT
face="Courier New" size=2>There's not half the files there used to
be,</FONT> <BR><FONT face="Courier New" size=2>And there's a milestone
hanging over me</FONT> <BR><FONT face="Courier New" size=2>The system
crashed so suddenly.</FONT> <BR><FONT face="Courier New" size=2>I pushed
something wrong</FONT> <BR><FONT face="Courier New" size=2>What it was I
could not say.</FONT> <BR><FONT face="Courier New" size=2>Now all my data's
gone</FONT> <BR><FONT face="Courier New" size=2>and I long for
yesterday-ay-ay-ay.</FONT> </P>
<P><FONT face="Courier New" size=2>Yesterday,</FONT> <BR><FONT
face="Courier New" size=2>The need for back-ups seemed so far away.</FONT>
<BR><FONT face="Courier New" size=2>I knew my data was all here to
stay,</FONT> <BR><FONT face="Courier New" size=2>Now I believe in
yesterday.</FONT> </P>
<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> Markham, Richard
[mailto:RMarkham AT hafeleamericas DOT com]<BR><B>Sent:</B> Wednesday,
July 17,
2002 5:00 PM<BR><B>To:</B> Nblist (E-mail)<BR><B>Subject:</B>
[Veritas-bu]
GUI exp. date<BR><BR></FONT></DIV>
<P><FONT size=2>anyone having issues with the Media and Device Mgmt. GUI
not </FONT><BR><FONT size=2>populating the expiration date column for the
tapes within </FONT><BR><FONT size=2>a volume pool ? and perhaps a
workaround ?</FONT> </P>
<P><FONT size=2>NB 3.4.2 Solaris 8</FONT>
</P></BLOCKQUOTE></BLOCKQUOTE></BLOCKQUOTE></BODY></HTML>
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