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You may be a bit twisted in your understanding - or I may be, I guess.
Volume Retention, the date visible in the vmquery output, is about how long
to keep a tape before the physical media is deemed too old to be used
further. Once past this date, the tape won't be written to again but it can
be read if required.
Image Retention is about how long the catalog tracks the data on a tape.
Once an image is written to a tape, that image data is tracked in the
catalog until the image expiration time is exceeded (retention time in the
backup schedule), then the tracking for that image is deleted from the
catalog (expired) and that part of the tape is marked as reusable. When all
images on a tape are expired, the tape is reusable for new backups, ie:
"empty".
The image information is retained in the catalog until the image itself
exceeds its retention period. If you keep images for infiinite retention,
that image data is never automatically deleted from the catalog.
If you're vaulting copies of your catalog, then you can set a retention
period for this catalog copy. There's not much value, IMO, in keeping these
for a long time because your on-disk catalog, and all subsequent catalog
backups, still have the tracking for the infinitely-retained images in them.
Note, the latest versions of NB allow you to export certain portions of your
catalog to tape and then remove them from the on-disk catalog (to keep your
catalog sizes smaller). This makes your on-tape catalog "backup" the only
copy of that tracking info and you'd, of course, want to keep that catalog
backup for the life of your tracked data.
Does this cover it?
-M
-----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
August.Piazza AT frx DOT com
Sent: Wednesday, September 15, 2004 1:35 PM
To: veritas-bu AT mailman.eng.auburn DOT edu
Subject: [Veritas-bu] Tool to track volumes past retention
Does anyone know of a tool to track netbackup volumes past their catalog
retention?
We have to retain volumes indefinitely, as in forever. Currently the
catalog retention is set for a year. After which the volume is sent to the
scratch pool and the catalog entries purged. There is no way of knowing
when or what is on the volume. I'm trying to avoid a manual process to
create media reports.
thanks in advance......
____________________________________________________________________
This e-mail and its attachments may contain Forest Laboratories, Inc.
proprietary information that is privileged, confidential or subject to
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solely for the use of the individual or entity to which it is addressed. If
you are not the intended recipient of this e-mail, or the employee or agent
responsible for delivering this e-mail to the intended recipient, you are
hereby notified that any dissemination, distribution, copying or action
taken in relation to the contents of and attachments to this e-mail is
strictly prohibited and may be unlawful. If you have received this e-mail in
error, please notify the sender immediately and permanently delete the
original and any copy of this e-mail and any printout.
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<DIV><SPAN class=019582516-17092004><FONT face=Arial color=#0000ff size=2>You
may be a bit twisted in your understanding - or I may be, I
guess.</FONT></SPAN></DIV>
<DIV><SPAN class=019582516-17092004><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=019582516-17092004><FONT face=Arial color=#0000ff
size=2>Volume
Retention, the date visible in the vmquery output, is about how long to keep a
tape before the physical media is deemed too old to be used further. Once
past this date, the tape won't be written to again but it can be read if
required.</FONT></SPAN></DIV>
<DIV><SPAN class=019582516-17092004><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=019582516-17092004><FONT face=Arial color=#0000ff size=2>Image
Retention is about how long the catalog tracks the data on a tape. Once
an
image is written to a tape, that image data is tracked in the catalog until the
image expiration time is exceeded (retention time in the backup schedule), then
the tracking for that image is deleted from the catalog (expired) and that
part of the tape is marked as reusable. When all images on a tape are
expired, the tape is reusable for new backups, ie: "empty".</FONT></SPAN></DIV>
<DIV><SPAN class=019582516-17092004><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=019582516-17092004><FONT face=Arial color=#0000ff size=2>The
image information is retained in the catalog until the image itself exceeds its
retention period. If you keep images for infiinite retention, that image
data is never automatically deleted from the catalog.</FONT></SPAN></DIV>
<DIV><SPAN class=019582516-17092004><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=019582516-17092004><FONT face=Arial color=#0000ff size=2>If
you're vaulting copies of your catalog, then you can set a retention period for
this catalog copy. There's not much value, IMO, in keeping these for a
long time because your on-disk catalog, and all subsequent catalog backups,
still have the tracking for the infinitely-retained images in
them.</FONT></SPAN></DIV>
<DIV><SPAN class=019582516-17092004><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=019582516-17092004><FONT face=Arial color=#0000ff size=2>Note,
the latest versions of NB allow you to export certain portions of your catalog
to tape and then remove them from the on-disk catalog (to keep your catalog
sizes smaller). This makes your on-tape catalog "backup" the only copy of
that tracking info and you'd, of course, want to keep that catalog backup for
the life of your tracked data.</FONT></SPAN></DIV>
<DIV><SPAN class=019582516-17092004><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=019582516-17092004><FONT face=Arial color=#0000ff size=2>Does
this cover it?</FONT></SPAN></DIV>
<DIV><SPAN class=019582516-17092004><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=019582516-17092004><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>
veritas-bu-admin AT mailman.eng.auburn DOT edu
[mailto:veritas-bu-admin AT mailman.eng.auburn DOT edu]<B>On Behalf Of
</B>August.Piazza AT frx DOT com<BR><B>Sent:</B> Wednesday, September 15,
2004 1:35
PM<BR><B>To:</B> veritas-bu AT mailman.eng.auburn DOT edu<BR><B>Subject:</B>
[Veritas-bu] Tool to track volumes past retention<BR><BR></FONT></DIV>
<P><FONT face=Arial size=2>Does anyone know of a tool to track netbackup
volumes past their catalog retention? </FONT><BR><FONT face=Arial size=2>We
have to retain volumes indefinitely, as in forever. Currently the
catalog retention is set for a year. After which the volume is sent to
the scratch pool and the catalog entries purged. There is no way of
knowing when or what is on the volume. I'm trying to avoid a manual process
to
create media reports.</FONT></P>
<P><FONT face=Arial size=2>thanks in advance......</FONT> </P><BR><BR>
<P>____________________________________________________________________
<BR>This e-mail and its attachments may contain Forest Laboratories, Inc.
proprietary information that is privileged, confidential or subject to
copyright belonging to Forest Laboratories, Inc. This e-mail is intended
solely for the use of the individual or entity to which it is addressed. If
you are not the intended recipient of this e-mail, or the employee or agent
responsible for delivering this e-mail to the intended recipient, you are
hereby notified that any dissemination, distribution, copying or action taken
in relation to the contents of and attachments to this e-mail is strictly
prohibited and may be unlawful. If you have received this e-mail in error,
please notify the sender immediately and permanently delete the original and
any copy of this e-mail and any printout.</P></BLOCKQUOTE></BODY></HTML>
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