HP OpenView Storage B6960-96008 Writer, See also direct backup, See zero downtime backup ZDB

Glossary

WINS server A system running Windows Internet Name Service software that resolves Windows networking computer names to IP addresses. Data Protector can back up WINS server data as part of the Windows configuration.

writer

(MS VSS specific term)

A process that initiates change of data on the original volume. Writers are typically applications or system services that write persistent information on a volume. Writers also participate in the shadow copy synchronization process by assuring data consistency.

XBSA interface (Informix Server specific term)

ON-Bar and Data Protector communicate with each other through the X/Open Backup Services Application Programmer's Interface (XBSA).

XCopy engine (direct backup specific term)

ASCSI-3 copy command that allows you to copy data from a storage device having a SCSI source address to a backup device having a SCSI destination address, thus enabling direct backup. The data flows from a source device (either block or streaming, that is, disk or tape) to the destination device (either block or streaming) through

XCopy. This releases the controlling server of reading the data from the storage device into memory and then writing the information to the destination device.

See also direct backup.

ZDB

See zero downtime backup (ZDB).

ZDB database (ZDB specific term)

A part of the IDB, storing ZDB related information such as source volumes, replicas and security information. The ZDB database is used for ZDB, and instant recovery, and split mirror restore. See also zero downtime backup (ZDB).

ZDB to disk (ZDB specific term)

A form of zero downtime backup where the replica produced is kept on the disk array as a backup of the source volumes at a specific point in time. Multiple replicas, produced using the same backup specification at different times, can be kept in a replica set. A replica from ZDB to disk can be restored using the instant recovery process.

See also zero downtime backup (ZDB), ZDB to tape, ZDB to disk+tape, instant recovery, and replica set rotation.

ZDB to disk+tape (ZDB specific term) A form of zero downtime backup where the replica produced is kept on the disk

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