Its always recommended not to have a database size of more then 100 Gb for better manageability and also for faster recovery in case of disasters.Probably you could create more Mailbox Stores according to the mailbox sizes you need to accomodate.......
http://te
http://www.msexchange.org/
http://www.msexchange.org/





by: mutahirPosted on 2009-08-18 at 20:12:24ID: 25129380
http://www.experts-exchang e.com/Soft ware/Serve r_Software /Email_Ser vers/Excha nge/Q_2320 4873.html
h ttp://tech net.micros oft.com/en -us/librar y/bb201753 .aspx
http: //technet. microsoft. com/en-us/ library/aa 998926.asp x
To use the Exchange Management Console to configure storage quotas for a mailbox database
Start the Exchange Management Console.
In the console tree, expand Server Configuration, and then click Mailbox.
In the result pane, select the server that contains the mailbox database for which you want to configure storage quotas.
In the work pane, select the mailbox database for which you want to configure storage quotas.
In the action pane, under the name of the mailbox database, click Properties.
In <Mailbox Database Name> Properties, click the Limits tab.
On the Limits tab, under Storage limits, complete the following fields:
Issue warning at (KB) Select this check box and use the corresponding text box to specify the maximum storage limit in kilobytes (KB) before a warning is issued to the mailboxes. The value range is from 0 through 2,147,483,647 KB. If a mailbox size reaches or exceeds the value specified, Exchange will send a warning message to that mailbox.
Prohibit send at (KB) Select this check box and use the corresponding text box to specify a prohibit send limit in KB for mailboxes. The value range is from 0 through 2,147,483,647 KB. If a mailbox size reaches or exceeds the specified limit, Exchange will prevent that mailbox user from sending new messages and will display a descriptive error message.
Prohibit send and receive at (KB) Select this check box and use the corresponding text box to specify a prohibit send and receive limit in KB for mailboxes. The value range is from 0 through 2,147,483,647 KB. If a mailbox size reaches or exceeds the specified limit, Exchange will prevent that mailbox user from sending new messages and will not deliver any new messages to the mailbox. Any messages that are sent to the mailbox will be returned to the sender with a descriptive error message.
Warning message interval Use this list to specify a time at which mailboxes in the database are scanned for compliance with the storage limits configured. Exchange will send notification messages to all mailboxes for which the size exceeds one or more of the storage limits. You can select from one of the predefined intervals in the list or create a custom schedule.
To create a custom schedule, click Customize to open the Schedule dialog box. Use the time grid to specify the custom schedule, and then click OK.
Click OK.