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What I am looking for is not an exact number but more within a percentage.
What I am actually concerned with is catching data that is put on the
server in a location that is not backed up. We use streaming heavily to
try to minimize the backup window with smaller streams so both drives in
our library are utilized. We have the streams defined to a point that if
someone puts a folder in the root of the d: drive and doesn't tell me it
won't get backed up. I guess if I could tell it to back up everything on
that drive that wasn't already included in one of the streams that would
work too. I just don't want to duplicate the data that gets put on tape
and I don't want extremely large streams. Checking total data backed up
on a client and comparing that to the actual data on the server would tell
me if someone put a large db up on the server and didn't tell me. And
your right I'm not willing to unmount the file system to accomplish this.
Thanks,
Shawn Coleman
Systems Support Specialist
Books Are Fun, Ltd.
Phone - 641.472.8301 x1560
Fax - 888.708.1682
Cell - 641-919-2433
Ed Wilts <ewilts AT ewilts DOT org>
Sent by: veritas-bu-admin AT mailman.eng.auburn DOT edu
07/01/2005 11:43 AM
To
Shawn_Coleman AT booksarefun DOT com
cc
veritas-bu AT mailman.eng.auburn DOT edu
Subject
Re: [Veritas-bu] need to compare actual data with data that was backed up
On Fri, Jul 01, 2005 at 10:52:52AM -0500, Shawn_Coleman AT booksarefun DOT com
wrote:
> Does someone have an idea how I would go about setting up an automated
> process to check the amount of data in a location compared to the amount
> of data that was backed up to tape.
Although I think that technically this can be done, practically it can't
unless you're willing to completely quiesce the file system during the
backup and the verification process. After all, what do you want to
happen if somebody adds or modifies a file between the time you checked
the backups and the time you checked for the sizes on disk? What about
if somebody replaces a 100K file with a different 100K file? Even files
like system logs will tend to grow to throw off your calculations. Logs
on some systems will get purged or truncated during your backups or
could be between the backup and the verification test.
So, are willing to dismount the file systems and then do the backup and
verification before remounting them?
--
Ed Wilts, Mounds View, MN, USA
mailto:ewilts AT ewilts DOT org
_______________________________________________
Veritas-bu maillist - Veritas-bu AT mailman.eng.auburn DOT edu
http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu
ForwardSourceID:NT00043082
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<br><font size=2 face="sans-serif">What I am looking for is not an exact
number but more within a percentage. What I am actually concerned
with is catching data that is put on the server in a location that is not
backed up. We use streaming heavily to try to minimize the backup
window with smaller streams so both drives in our library are utilized.
We have the streams defined to a point that if someone puts a folder
in the root of the d: drive and doesn't tell me it won't get backed up.
I guess if I could tell it to back up everything on that drive that
wasn't already included in one of the streams that would work too. I
just don't want to duplicate the data that gets put on tape and I don't
want extremely large streams. Checking total data backed up on a
client and comparing that to the actual data on the server would tell me
if someone put a large db up on the server and didn't tell me. And
your right I'm not willing to unmount the file system to accomplish this.</font>
<br><font size=2 face="sans-serif"><br>
Thanks,<br>
<br>
Shawn Coleman<br>
Systems Support Specialist<br>
Books Are Fun, Ltd.<br>
Phone - 641.472.8301 x1560<br>
Fax - 888.708.1682<br>
Cell - 641-919-2433<br>
</font>
<br>
<br>
<br>
<table width=100%>
<tr valign=top>
<td width=40%><font size=1 face="sans-serif"><b>Ed Wilts <ewilts AT ewilts
DOT org></b>
</font>
<br><font size=1 face="sans-serif">Sent by: veritas-bu-admin AT
mailman.eng.auburn DOT edu</font>
<p><font size=1 face="sans-serif">07/01/2005 11:43 AM</font>
<br>
<td width=59%>
<table width=100%>
<tr>
<td>
<div align=right><font size=1 face="sans-serif">To</font></div>
<td valign=top><font size=1 face="sans-serif">Shawn_Coleman AT booksarefun DOT
com</font>
<tr>
<td>
<div align=right><font size=1 face="sans-serif">cc</font></div>
<td valign=top><font size=1 face="sans-serif">veritas-bu AT mailman.eng.auburn
DOT edu</font>
<tr>
<td>
<div align=right><font size=1 face="sans-serif">Subject</font></div>
<td valign=top><font size=1 face="sans-serif">Re: [Veritas-bu] need to
compare actual data with data that was backed up</font></table>
<br>
<table>
<tr valign=top>
<td>
<td></table>
<br></table>
<br>
<br>
<br><font size=2><tt>On Fri, Jul 01, 2005 at 10:52:52AM -0500, Shawn_Coleman AT
booksarefun DOT com
wrote:<br>
> Does someone have an idea how I would go about setting up an automated
<br>
> process to check the amount of data in a location compared to the
amount <br>
> of data that was backed up to tape.<br>
<br>
Although I think that technically this can be done, practically it can't<br>
unless you're willing to completely quiesce the file system during the<br>
backup and the verification process. After all, what do you want
to<br>
happen if somebody adds or modifies a file between the time you checked<br>
the backups and the time you checked for the sizes on disk? What
about<br>
if somebody replaces a 100K file with a different 100K file? Even
files<br>
like system logs will tend to grow to throw off your calculations.
Logs<br>
on some systems will get purged or truncated during your backups or<br>
could be between the backup and the verification test.<br>
<br>
So, are willing to dismount the file systems and then do the backup and<br>
verification before remounting them?<br>
<br>
-- <br>
Ed Wilts, Mounds View, MN, USA<br>
mailto:ewilts AT ewilts DOT org<br>
_______________________________________________<br>
Veritas-bu maillist - Veritas-bu AT mailman.eng.auburn DOT edu<br>
http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu<br>
</tt></font>
<br><font size=2 color=white face="sans-serif">ForwardSourceID:NT00043082
</font>
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