Hp P6000 Continuous Access Software Manuel d'utilisateur télécharger pdf (Page 8)

Running the utility

HP DButil is run from a Windows command line, typically using the following methods:

• Windows batch files

• HP Replication Solutions Manager jobs that call batch files or scripts

HP DButil creates a metadata file in the directory where it is run. HP DButil uses this metadata to

restore the database. A metadata file is valid only for the snapshot that it is created for. If you run HP

DButil from the directory of the SQL Server database, you can keep separate metadata files for

restoring multiple databases.

HP DButil commands

HP DButil supports the following commands.

DButil –pre

The DButil -pre command suspends an SQL Server database and places it in a transactionally

consistent state. Write operations to the database are suspended until the DButil –post command

is issued. Use this command just before you replicate the database.

Syntax:

DButil –pre <sqlserver_name> <database_name> <username> <password>

DButil –post

The DButil -post command resumes a suspended SQL Server database and allows write operations

to continue. Use this command just after you replicate the database.

Syntax:

DButil –post <sqlserver_name> <database_name> <username> <password>

DButil –mfreeze

The DButil –mfreeze command suspends multiple databases residing on a single LUN or a set

of LUNs that must be replicated as a group. Write operations to specified databases are suspended

until the DButil –mthaw command is issued. For example, if three databases reside on the same

LUN, the following commands would suspend all three:

DButil –mfreeze 1 of 3 <sqlserver_name> <database_name> <username> <password>

DButil –mfreeze 2 of 3 <sqlserver_name> <database_name> <username> <password>

DButil –mfreeze 3 of 3 <sqlserver_name> <database_name> <username> <password>

Complete this procedure by issuing a matching DButil –mthaw command before issuing any

subsequent DButil –mfreeze or DButil –pre commands.

Using HP StorageWorks DButil8

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Hp P6000 Continuous Access Software Manuel d'utilisateur Page 8