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

2 mailbox database copies are running low on space.

they are on MBX1 AND MBX8

can you suggest how to increase space size
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Paul MacDonaldDirector, Information SystemsCommented:
First, have people delete any old, unneeded mail.  Give them instructions on how to set up a .PST file to archive any old mail they want to keep.

Second, make sure they empty their spam/junk mail folders.

These two steps will probably go a long way.  If they're not sufficient, you'll simply have to add disk space to your servers to accommodate the databases.
pramod1Author Commented:
do I need to check any white space , or check back up or work with truncation logs

there should be some way to increase space
Paul MacDonaldDirector, Information SystemsCommented:
Exchange handles database maintenance and you should just leave it at that.  Truncating log files - even if you could do it - would almost certainly break the replication in your DAG.  Deleting items (e-mails) from the database(s) is the way to go.

I neglected to mention you should have people delete/archive e-mails with large attachments, too.
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pramod1Author Commented:
but the database size is growing , how  exchange database maintenance  will help?
AmitIT ArchitectCommented:
You need to do database consolidation. Either increase disk space or add new disk and new database. Then move the mailboxes from these DB's. Finally recreate these DB again and use it for future mailboxes. It seems you don't have mailboxes limits in your environment.

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pramod1Author Commented:
adding new disk and database is long task , if it physical machine how should I increase disk space
pramod1Author Commented:
Exchange handles database maintenance and you should just leave it at that-paulmcd

how it will decrease white space
AmitIT ArchitectCommented:
Check the white space. If you have more white space. Then just create one temp db, move the mailboxes. Then recreate these db's again and move back the mailboxes. Or if you space on other db's move mailboxes to those db's and recreate these one again.

In case white space is not enough, then you need to look for getting additional disk space, either via SAN or if these are locally attached or direct attached disk, then you need to order more disk's.
pramod1Author Commented:
how to check white space, any command will help
Paul MacDonaldDirector, Information SystemsCommented:
All Exchange database maintenance happens in the background and automatically.  Scroll about halfway down for information on "freeing white space".  

You CAN (as Amit notes) create a whole new database, move mailboxes into it, then delete the old database.  But that's just chasing the problem and without some proactive measure you'll just have to do this over and over.
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