Exxhange SQL And IIS- P41 ppt

172 Chapter 4 • Managing the Exchange 2007 Mailbox Server Role Exchange 2007 Public Folder Databases Public Folders are still supported in Exchange Server 2007, but bear in mind that they have been deemphasized, which means that there’s a good chance they won’t be included in the next version of Exchange (currently code-named E14). With this in mind, it’s a good idea to start thinking about migrating to another solution, such as SharePoint. NOTE Even though Public Folders have been deemphasized in Exchange Server 2007, Microsoft will support them until the end of 2016, so most of you should have suffi cient time available to migrate Public Folder data to another solution, such as SharePoint. A Public Folder database is a database used to store Public Folders. The data contained in a Public Folder can be accessed by any mailbox-enabled users as long as they have the appropriate permissions. The Public Folders in the Public Folder database can exist as single copies or multiple copies (also referred to as replicas). Using replicas, you can confi gure Public Folders to be synchronized between specifi ed servers so that they always are up to date, no matter which mailbox server a given client is connected to. Since a Public Folder isn’t replicated automatically, you must confi gure which Public Folder database should contain a replica of any given Public Folder. Because Public Folders are widely used by organizations for sharing documents, calendars, contacts, and tasks and for archiving distribution lists, one would think that you could administer these folders from within the EMC, but unfortunately the administration tasks you can do from within the EMC are extremely limited. So, if you need to do tasks other than create, delete, and move Public Folder databases as well as confi gure limits and the like, you will, depending on the specifi c task, need to do so using the EMS, an Outlook client, or System Manager on an Exchange 2003 Server that’s still part of the Exchange organization. The following step-by-step instructions tell you how to perform the most common tasks regarding administration of Public Folders. Creating a New Public Folder Database Creating a new Public Folder database is just as straightforward as creating a mailbox database. It is done by performing the following steps: 1. In the Exchange Management Console, click the Server Confi guration work center node, then select the Mailbox Server subnode. 2. Now click the storage group in which you want to create the database, then select New Public Folder Database in the Action pane. Alternatively, you can right-click the respective storage group and select New Public Folder Database from the context menu. Managing the Exchange 2007 Mailbox Server Role • Chapter 4 173 3. In the New Public Folder Database Wizard, enter a name for the database, then click the Browse button and specify the location for the .EDB fi le. 4. Finally, click New (see Figure 4.12). Figure 4.12 Creating a New Public Folder Database NOTE You can also create a new Public Folder database via the EMS using the New-PublicFolderDatabase CMDlet. 174 Chapter 4 • Managing the Exchange 2007 Mailbox Server Role Now that we have created a new Public Folder database, let’s take a look at the Properties page for the database. The General tab is almost identical to that of a mailbox database, so let’s move on and click the Replication tab. As you can see in Figure 4.13, you can specify the Public Folder database replication interval, the replication interval for “Always Run” (in minutes), and the replication message size limit. The replication intervals used to confi gure the interval at which replication of Public Folders or content may occur and the Replication interval for “Always Run” (minutes) is used to defi ne what “always run” means (by default, it’s 15 minutes). The “Replication message size limit (KB)” setting is used to specify the size of a replication message. If it’s set to a large value, smaller messages can be aggregated into a single replication messages as high as the defi ned value. Unless you have a specifi c reason for changing these settings, we recommend you leave the defaults intact. Figure 4.13 The Replication Tab on the Properties Page of a Public Folder Database Managing the Exchange 2007 Mailbox Server Role • Chapter 4 175 Let’s take a look at what’s hiding under the Limits tab. As you can see in Figure 4.14, this is the place where we confi gure the storage limits for a Public Folder database. As is the case with the default storage limits for a mailbox database, the Public Folder database limits are set much higher than was the case in previous Exchange versions. When the database is approximately 2GB in size, a warning will be generated, and when it’s over 2GB, end users will be prohibited from posting messages to a Public Folder in the Public Folder database. The maximum item size is approximately 10MB. Note that the “Keep deleted items for (days)” option is confi gured to 14 days, just as is the case for a mailbox database—again, a much higher setting than in previous versions of Exchange. Note that you also have the option of setting an age limit for the Public Folders that exists in the particular Public Folder database. Figure 4.14 The Public Folder Database Properties Page These settings can also be set using either CMDlets or the Exchange 2003 System Manager. 176 Chapter 4 • Managing the Exchange 2007 Mailbox Server Role Creating a Public Folder You can create a Public Folder using the EMS, an Outlook MAPI client, or the System Manager on an Exchange 2003 Server that still exists in the Exchange organization. Creating a public folder using the EMS is done using the New-PublicFolder CMDlet. So, if for example we wanted to create a new Public Folder named Finance, we would need to type the following command in the EMS: New-PublicFolder –Name Finance followed by pressing Enter (see Figure 4.15). Figure 4.15 Creating a New Public Folder Via the Exchange Management Shell If you still have an Exchange 2003 Server in your Exchange organization, you can also create new Public Folders using the System Manager by following these steps: 1. On the respective Exchange 2003 server, open the System Manager by clicking Start | All Programs | Microsoft Exchange | Exchange System Manager. . Public Folders are widely used by organizations for sharing documents, calendars, contacts, and tasks and for archiving distribution lists, one would think that you could administer these folders. limited. So, if you need to do tasks other than create, delete, and move Public Folder databases as well as confi gure limits and the like, you will, depending on the specifi c task, need to. on and click the Replication tab. As you can see in Figure 4.13, you can specify the Public Folder database replication interval, the replication interval for “Always Run” (in minutes), and