HP Application Recovery Manager software A.06.10 Concepts guide (March 2008)

5 ZDB session process
ZDB process overview
With conventional backup to tape, application operation is affected for the whole
of the backup session, until the streaming of data to tape is complete. However, with
Application Recovery Manager ZDB, application operation is only affected during
the creation of a replica.
The principle steps in a ZDB process are:
1. Locate the data objects for backup. See “Locating data objects” on page 51.
2. Freeze operation of the application database. See
“Freezing operation of the application or database” on page 52
3. Create a replica containing the specified data objects. See
“Creating a replica” on page 53.
4. If backup to tape using third–party backup software is required, stream the
replica to tape. See
“Streaming the replica to tape using third-party backup software” on page 54.
5. Record information about the session. See
“Recording session information” on page 54.
Locating data objects
1. Application Recovery Manager starts processes on the application and backup
systems.
2. The Backup Session Manager reads the backup specification for ZDB and passes
the necessary instructions to the Application Integration Agent and the Disk Array
Agent on the application system, and to the Disk Array Agent on the backup
system.
The ZDB agent on the application host resolves data objects to filesystems (if
any), volume groups (if any), and the underlying storage volumes. These data
objects may come directly from a backup specification or may be provided by
one of supported database integrations.
Concepts guide 51