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calculate the level of changes in exchange 2007

Posted on 2011-09-16
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Last Modified: 2012-05-12
is it possible to get a figure for the amount my exchange datastores are changing everyday
i need to be able to see how many gig of changes there are each day
i have a backup soloution that backs up just the changes and i need to see if it is going to be a lot
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Question by:dougdog
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by:5g6tdcv4
ID: 36548638
Simply put you can just go into the location where exchange is storing the log files and sort them by date and just look at the size of the log files. This will tell you roughly how much increase there is in your database for one day.
This if a rough figure though, as it will not take into account such exchange features as single instance storage, so the log files will be a little larger than the actual net increase on your DB's
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by:dougdog
ID: 36549147
im using circular logging
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by:dougdog
ID: 36549153
is logs email which is then copied into the database?

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by:5g6tdcv4
ID: 36549195
You will need to disable circ logging and then look at log files.
Yes the log files is what has been written to DB
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by:dougdog
ID: 36549226
so when someone sends an internal r external email it is in the form of a log
then the log is written to the database and deleted
is that correct

so if i ever manually delete logs i am effectively deleting emails is that correct???
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5g6tdcv4 earned 500 total points
ID: 36550435
the log is a file that can contain multiple emails, once the size limit for a log file has been reached the data is written to the exchange database and a new log file is created. the log files are basically redundant  copies of data already written to the exchange database if you do not have circular logging enabled.

with circular logging as soon as the log file is written to the exchange database the log file is deleted.

so if i ever manually delete logs i am effectively deleting emails is that correct???  No you are deleting the "backup copy", that exchange maintains in order to assist in a disaster scenario.
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by:dougdog
ID: 37030860
excellent answers
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