Sequence of operation for NetBackup for Sybase backups
Sybase script files control the NetBackup operations. A user selects a script through the NetBackup client user interface.
You use the NetBackup Administration Console to configure a schedule to use a script to perform NetBackup operations.
The following process takes place when a script is selected for a backup:
A NetBackup process called bphdb starts the Sybase backup script on the client.
The Sybase backup script starts the isql utility and uses the Sybase SQL script as an input file.
SQL Server starts the requested operation on the databases.
If the process requires media to store backup data, NetBackup for Sybase starts a user-directed backup by using the NetBackup bpbackup command for Sybase database extension.
The NetBackup media server connects to NetBackup for Sybase on the client.
Sybase backup server sends data to NetBackup for Sybase, which transfers data to the media server.
The media server sends the data to a storage unit.
A restore works in essentially the same manner except that NetBackup for Sybase issues a bprestore command. This causes the media server to retrieve the data from the storage unit and send it to NetBackup for Sybase on the client.
Sybase backup server supports parallel operations, so it is possible to start more than one backup or restore operation.