Exchange 2013   Mailbox folder

thombie
thombie used Ask the Experts™
on
I have problem a  problem with my Exchange mailbox  folder.  The DB is only  27G but I have 160Gb have  E0xxx log filesdating back to Janruary.

Can I delete the   older files. Or is there exchange way   of deleting these files.
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Peter HutchisonSenior Network Systems Specialist

Commented:
You need to backup the Exchange mailbox database, this will replay the content of the logs into the main database and them remove them, once the backup finishes.
Kamal KhaleefaInformation Security Specialist

Commented:
As you dont have backup solution
Refer to this link to use windows server backup
https://technet.microsoft.com/en-us/library/dd876854(v=exchg.150).aspx

Circular  logging wont work fine to you and will effect performance
And as it just delete old log file to keep on certain size
You can use windows backup to reduce the edb log size and have a backup of ur mailboxes
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Author

Commented:
The  logs are not  big there are just lots of small ones. can I delete them ?
Information Security Specialist
Commented:
If you have only one mailbox server then you can delete old ones
Kamal KhaleefaInformation Security Specialist

Commented:
Its small size by design exchange 2010 log file is 5 mb
Exchange 2013...2016 1mb

Author

Commented:
Ok Will delete  some of old one see how I get on
Peter HutchisonSenior Network Systems Specialist

Commented:
Do not manually delete transaction logs. You cause cause the database become usable will will not be mountable again.
Will SzymkowskiSenior Solution Architect
Most Valuable Expert 2015
Top Expert 2015

Commented:
Exchange Logs are only needed to recover mail if the database becomes corrupt. Logs files are committed to the database immidiately. In some cases there may be .chk files in the logs which means up until the .chk log all of the logs have been successfully committed to the database. Anything else after would still need to be committed.

This is typical if you have a database crash and logs were trying to be committed during this failure.

Will.
Peter HutchisonSenior Network Systems Specialist

Commented:
You can view checkpoint information using the ESEUTIL /ml <log file> and see the checkpoint information, if unsure which logs are safe to delete.

Author

Commented:
Delete the old files and the exchange is fine.

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