EXCHANGE 2010

We have DAG Running and we have 16 mailbox database copies spanning 8mailbox servers.

we are having errors on 4 exchange 2010 servers
(Ex10mbx01
Ex10mbx09
Ex10mbx08
Ex10mbx02

we are having following errors.

1.      Database copies failed on server
2.      The database copy is low on log volume space. The volume has reached warning levels

how should we correct this
pramod1Asked:
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StuartTechnical Architect - CloudCommented:
First look at the available disk space on the log drive's and increase if required. Then depending on the state of the database copy you can either update OR reseed from the active copies
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Scott CSenior EngineerCommented:
It looks like you are low on disk space.  You need to either free up space or expand your volumes.
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AmitIT ArchitectCommented:
16 copies for each DB? Secondly, are you getting this error on every DB. I assume you might seeing this on a specific DB.

Do you have Circular logging enabled or not. If not, are you taking backups to purges logs.

Finally, can you run these commands and post the result.

test-replicationhealth
test-servicehealth
get-mailboxdatabasecopystatus dbname
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Amit KumarCommented:
Do you take backups of Exchange DBs???

if not then you must enable Circular logging on DBs as Logs will not be purged if you don't take backup.

Circular logging will help you to recycle existing logs.

To enabled it open EMC-- go to Database Management -- right click on DB and open properties. -- Maintenance tab then there will be option to enable Circular logging.

It may take time to purge logs after enabling this but if you want to effect it immediately then you can restart Information Service but it will lead to a downtime for users.
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pramod1Author Commented:
I am taking regular back ups
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Amit KumarCommented:
Then you need to check your DB sizes may be they are increasing and there is no space left for log creation if you are storing EDB and logs on same disk
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pramod1Author Commented:
where can I check edb and log files also

does it have to do anything with white space
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Amit KumarCommented:
White space is created on DB always, as Exchange do online maintenance on daily basis if you have that schedule configured.

But however if you have a lot of white space, then you can do offline defragmentation but it will be created again. You must do sizing your exchange infra.

to check white space of your DBs, please follow below command:

Get-mailboxdatabase -status | ft Name, AvailableNewMailboxSpace
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Windows Server 2008

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