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Exchange 2010 rapidly increasing log files

Hi

My problem is that my log files is increasing rapidly and the disk reserved for log files (80 gb) is running out of space. This started yestoday. The database is placed on another disk (.edb =20 gb). The strange thing is that the log files after less than 3 hours groves from 2 gb to 60 gb. So the total amount of all log files is much bigger than the actual .edb. file.

There are no extraordinary traffic to and from the Exchange server and everything looks normal.  

What I have done:

First I ran a full backup merging the log files into the database - this was not possible because I did not have enough free space on the log drive (80 gb). After that i enabled circular logging which merged all log files. But when I disabled the circular logging again the creation of log files exploded.

Any help appreciated

kr
Rasmus
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Luxor_like
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Luxor_like
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1 Solution
 
AmitIT ArchitectCommented:
You need to look for following issues:

Any Mailbox going on?
Any Backup task Hung?
Any Spam Attack? It can happen, if you have mailbox with unlimited size.
Any Server relaying traffic?

finally check the logs and enable the diagnostic logging.

also you can remount the db and check if that makes any difference.
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imkotteesSenior Messaging EngineerCommented:
you can use exmon to check whether any mailboxes stuck..
http://www.microsoft.com/en-us/download/details.aspx?id=11461
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Manpreet SIngh KhatraSolutions Architect, Project LeadCommented:
What is the size of the EDB file ?
If some space i would create a new DB mark circular logging and move mailboxes as that will take car eof any corruption or looping items

- Rancy
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DhanukadamCommented:
Hi
Please chek the below URl which will help u to fin root cause

http://technet.microsoft.com/en-us/library/ff477617.aspx
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Luxor_likeAuthor Commented:
imkottees: I have installed the exmon - but I do not now what to look after?

Rancy: Do you have a more specific "how to" (do I have to unmount the running database - after creating the new db with circular logging how to backup log files?)
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Manpreet SIngh KhatraSolutions Architect, Project LeadCommented:
No its more like create a new DB enable circular logging on both DB's and then Restart the Information store service and simply start Move mailbox .... once completed take a backup of the new DB

- Rancy
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Luxor_likeAuthor Commented:
imkottees: Exmon helped me pin out the reason -  a user that synced his Ipad with 32 thousand e-mails :o(

Thanks a lot!!
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imkotteesSenior Messaging EngineerCommented:
you are welcome.
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