NAME
swsrpvssbackup_exchange - backup of a Storage group or a database
SYNOPSIS
<program-directory>\bin\swsrpvssbackup_exchange [-skipchk] -dbname databaseName
DESCRIPTION
This command cooperates with VSS to perform an on-line backup of a Storage group or a database.
The command performs the following processing:
By using VSS and AdvancedCopy, the backup data of a Storage group or a database is created on a backup server.
Shadow copies are created by starting OPC or QuickOPC.
A drive letter is assigned to the backup volume based on a drive letter map file. The backup volume can be accessed as a read-only volume.
ESEUTIL is performed against backup data to verify data integrity. When there is no problem with data integrity, Exchange deletes unnecessary log files.
The metadata documents, which are needed at the time of restoration, are saved in the following locations of the backup server:
File | Output Place |
|---|---|
Writer metadata Document | <Environment directory>\etc\repl\data\exchange\<Managed Server name of business server>\metadoc\<storage group name or database name>.wmd.xml |
Backup component Document | <Environment directory>\etc\repl\data\exchange\<Managed Server name of business server>\metadoc\<storage group name or database name>.bcd.xml |
OPTIONS
A database name is specified.
If the database name contains a space, enclose it with double quotes.
This specifies that data consistency verification should not be performed by ESEUTIL.
EXIT STATUS
=0: Completed successfully
>0: Terminated abnormally
EXAMPLES
Back up database Mailbox1:
C:\>C:\Win32App\AdvancedCopyManager\bin\swsrpvssbackup_exchange -dbname Mailbox1 swsrpvssbackup_exchange successfully completed C:\>
NOTES
Backup cannot be executed in the following cases:
When the database information on the specified Storage group or database is not registered by the swsrpdbinfo_exchange command.
When the database composition of the specified Storage group or database is changed.
When acquisition of copy set information results in an error.
When communication with a backup server results in an error.
When the store is being dismounted.
When a copy set with a different copy type exists within the specified storage group or database.
When a copy set which cannot be used for the target Exchange server exists in the specified storage group or database.
When an error occurs with a hardware provider processing.
When an error is caused by a hardware provider command.
When volume (i.e., partition) deletion of Backup LUN is not completed.
When a shadow copy exists in Backup LUN and deletion of a shadow copy is not completed.
When abnormalities are detected by consistency verification of backup data.
When preservation of a writer metadata document and a backup component document results in an error.
When assignment of the drive letter of backup volume results in an error.
If this command is executed by specifying the -skipchk option, it is strongly recommended that the data consistency is verified manually after this command ends. For information about the method of verifying data consistency, refer to "support technical know-how" documents in the Microsoft Knowledge Base. In particular, refer to:
http://msdn.microsoft.com/en-us/library/bb891802.aspx
An Exchange writer may continue the backup processing when this command is forced to terminate by the task manager, by executing Ctrl-C, etc. In such a case, when you re-execute this command, an error message similar to the following message is output, and backup cannot be performed.
swsrp4648 An error occurred in VSS processing. Processing Phase=[BACKUP] Creation of Shadow Copy Set, Detected API=StartSnapshotSet, Error=0x80042316
In order to recover from this situation, it is necessary to initialize the Exchange writer by restarting the "Microsoft Exchange Information Store" service. Note, however, that if this service is restarted, the client connecting to the Exchange Server may experience an unexpected termination or an unexpected connection shutdown. Therefore, we recommend that you consider the chance to restart this service after consultation with an Exchange administrator.
This command cannot be executed during execution of the following commands:
If an error occurs during the processing for a storage group or a database that is made up of multiple copy sets, processing for this command is interrupted.
