Exchange public folder loss restoration method

How to back up and restoreExchangePublic folderTutorial Background:Xiaonuo has implemented internal and external email communication by deploying an email system. Exchange greatly accelerates the flow of internal and external information of the company and facilitates the communication between employees of various departments in various regions, improve the efficiency of various departments of the company. The use of public folders simplifies file management and saves a little bandwidth. However, the administrator of the financial department's management account list accidentally deleted the important January and February account lists and now needs to retrieve the January and February account lists. To achieve this goal, the email administrator must back up and restore the email system.I,Required for backup: first, create two documents in the "account list" of the sub-folder "Finance Department" in the public folder and mark them as accounts for the First Quarter of January and accounts for the second quarter of February. Run the NTBackup command to back up "System State" and "public folder storage"Note: most of the information about Exchange is stored in the mailbox storage, public folder storage, and active directory database of Exchange. Some configuration information is stored in the system registry, while others are stored in different locations of the Exchange server installation path.ExchangeFor the Exchange Server, the most important data should be the mail storage and public folder storage, which can be a backup to restore a single storage, or a backup to restore all storage, in this tutorial, only public folder storage is backed up.The system status includes the configuration information of Exchange, which maintains the overall operation of each mailbox and Exchange Server. This information is stored in the Active Directory database, so you need to back up Active Directory. You can use System State in Windows Server 2003 backup tool to back up Active Directory.Note: The system status is used for disaster recovery, and generally does not need to be restored. The recovery of the system status must be performed in the Directory Service Restoration mode, and the recovery is not only about the content in Exchange, but also the content in the domain. Be careful when using this function.Note:1. If the server is connected to an external storage device such as a tape drive, you can also select the backup device from the backup destination drop-down list.2. When backing up Microsoft Information Store, make sure that the email storage and public folder storage are installed. If you remove the mailbox storage or public folder storage, the backup tool will not be able to complete the backup of Microsoft Information Store.II,Use NTBackupPerform regular Exchange RestorationThe administrator who manages the "account list" of the public folder (1) accidentally deleted the account list for January 1, January and January 1, February as the mail system administrator, how can we help the General Manager recover the lost email information? Before the restoration, two accounts are created: accounts for the First Quarter of March and accounts for the second quarter of April. (2) Before performing restoration, the Exchange database to be restored must be detached. If the restored database is still loaded, the restoration process will fail.Note: you cannot access the email storage and public folder storage, so you must only remove the database restored from the backup. To restore the database without affecting Email users who have mailboxes in the database, consider restoring the storage group. However, restoring the storage group is only used for restoring the mailbox storage. It cannot be used to restore public folder storage. (3) restore the previously created public folder storage backup. During restoration, you must specify a "temporary location for logs and patch files ". (4) After the restoration is complete, the storage cannot be loaded immediately. You need to use the ESUTIL tool team database for check. If the storage is forcibly loaded, the c1038524 error will occur. (5) Right-click the detachable storage, select the "properties" command, and select the "Database" tab to view the path and name of the database file. It is best to copy it and use it later. (6) Open CMD, enter the directory of the database files that have been detached from the storage, and use the ESEUTIL/MH command (the full name command is ".. \ bin \ eseutil/mh pub1.edu) to check the database file. (7) view the running results of the ESEUTIL/MH command and check the status information of the database file. If the status information of the database file is "Dirty Shutdown ", run the ESEUTIL/P command (the full name command is ".. \ bin \ eseutil/p pub1.edu. (8) If you use the ESEUTIL/P command to repair the database, the system returns a warning message indicating that the database repair operation may damage the database, however, only this method can be used.Note: Because the ESUTIL tool's repair options may damage the database when the database is large (more than 16 GB, therefore, it is best for the email administrator to move the original database file to a safe location before restoring it. (9) after the repair is completed, run the ESUTIL/MH command to check the database. The database file status changes to "Clean Shutdown ". (10) when the State of the database that has been detached from the storage is "Clean Shutdown", load it into the storage. The restore operation is completed. When the administrator in the "account list" of the management public folder opens the mailbox again, the lost email is returned, but the backup email is lost, which indicates that, after the conventional restoration is executed, all the data after the backup will be lost. Therefore, before the restoration, you must transfer the content in the public folder created after the backup to a safe place, after restoration, put it in.

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