HP BB118BV - StorageWorks Data Protector Express Package User Manual page 320

It is strongly recommended that the master database be backed up each time it is changed. This is best
accomplished by prohibiting the creation of user-defined objects in the master database and by being
aware of the statements and system procedures, and the equivalent actions in SQL Enterprise Manager,
that modify it.
The most common statements and system procedures that modify master are:
CREATE DATABASE
•
ALTER DATABASE
•
sp_dropremotelogin
•
sp_addumpdevice
•
sp_dropdevice
•
sp_addlogin
•
sp_droplogin
•
sp_addserver
•
sp_dropserver
•
sp_addremotelogin
•
If a user database is created, expanded or shrunk after the most recent dump (backup) of the master
database and if it becomes necessary to reload the master database, then that user database and all data in
will be lost and must be restored from backup. Because of this, always dump (back up) the master
database after creating, expanding or shrinking user databases.
To recover a damaged master database
1. Stop the Data Protector Express and SQL Server services.
2. Rebuild the master database.
3. Restart SQL Server in single-user mode.
4. Restore the master database from the most recent backup.
5. Apply to the master database any changes that were not included in the most recent backup.
6. Drop invalid databases from the newly restored master database.
7. Start the Data Protector Express and SQL Server services.
8. Restore the msdb database.
Each of these steps is described below in more detail.
Step 1: Stop the Data Protector Express and SQL Server services
1. Exit Data Protector Express.
2. Stop the HP Data Protector Express service by using one of the following methods:
Using the Windows Command Line
•
a.
b.
c.
Open a command prompt.
Switch to the following directory:
HP\Data Protector Express
Type the following command at the command prompt:
dpwinsvc –x