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Problems Defragging/Compressing Exchange 2000 Mailbox Store

Posted on 2008-10-04
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Last Modified: 2012-05-05
Hello-

I am having a problem compressing my Exchange 2000 mailbox store.

My Exchange server has reached its 16GB limit. I have enabled the temporary 17GB store size limit to allow the users to log in and move older mail messages to archived PST files or delete them all together. When I use the Exchange System Manager for the size of the mailboxes, now the total size of all mailboxes is down to about 8GB.

I have run the Eseutil /d command to defrag/compress my mailbox. Unfortunately, this did not have the desired result. The combined size of my priv1.stm and priv1.edb files are still about 16GB combined. I have run this three times now, once using the /t temporary flag hoping this would create a new file all together. All attempts have had the same result (ending files are about 16GB combined). I have also run the isinteg command, but this did not seem to have any effect.

Researching this issue, I have examined the white space of my mailbox store using eseutil /ms. If I am reading this correctly, the number listed as "Free:" at the end of the first section is to be multiplied by 4096bytes to determine how much space can be recovered in the STM file by a defrag/compress process. This number is 97. Does this mean that I will gain only 400KB?? The number at the end of the test is 5793, which by my understanding is the amount (* 4096bytes) that can be recovered from the edb file (roughly 23MB??).

My question is this: If Exchange System Manager shows all of the mailboxes in my mailstore have a combined total size of about 8GB, and my STM and EDB files are 16GB, why does Eseutil /ms only say I can recover 23MB? Is there another way to compress this file? The next plan of attack I can think of is to remove all users' mail to temporary PST files and create brand new mailstore (a step I would like to avoid if possible).

Please let me know what I am missing.

Thanks for your help.
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Question by:ctsmequon
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rakeshmiglani earned 500 total points
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did you also change the retention settings for deleted items and deleted mailboxes?
what does event id 1221 in the application logs on the server say?
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by:ctsmequon
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Good thought. I had the retention for both items and mailboxes set to 30 days. Since the majority of the mail was cleaned up in the last week, on Sunday I set the items retention to 3 days. Checking this morning, event id 1221 still says I will only gain 35MB with a defrag/compression. Do I need to do something to force the private store to purge the messages that are outside of the retention time period?
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by:rakeshmiglani
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there is also checkbox under the limits tab. it is called " do not delete items and mailboxes unless the store has been backed up"
is that checked?
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by:ctsmequon
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No, it was not. After waiting several hours I received a new 1221 event saying there were 8GB available. Thanks for the help!
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