Glossary

for reuse in subsequent backups. The vaulting procedure depends on your company's backup strategy and policies for data protection/reliability.

verify

A function that lets you check whether the Data Protector data on a specified medium is readable. Additionally, consistency within each block can be checked if the backup was performed with the cyclic redundancy check (CRC) option ON.

Virtual Controller Software (VCS)

(HP StorageWorks EVA specific term) The firmware that manages all aspects of storage system operation, including communication with Command View EVA through the HSV controllers. See also Command View (CV) EVA.

Virtual Device Interface (MS SQL Server specific term)

This is a SQL Server programming interface that allows fast backup and restore of large databases.

virtual disk (HP StorageWorks EVA specific term)

A unit of storage allocated from an HP StorageWorks Enterprise Virtual Array storage pool. Virtual disks are the entities that are replicated using the HP StorageWorks Enterprise Virtual Array

snapshot functionality.

See also source volume and target volume.virtual full backup

An efficient type of synthetic backup where data is consolidated using pointers instead of being copied. It is performed if all the backups (the full backup, incremental backups, and the resulting virtual full backup) are written to a single file library that uses distributed file medium format.

virtual server

A virtual machine in a cluster environment defined in a domain by a network IP name and address. Its address is cached by the cluster software and mapped to the cluster node that is currently running the virtual server resources. This way all requests for a particular virtual server are cached by a specific cluster node.

volser (ADIC and STK specific term)

A VOLume SERial number is a label on the medium to identify the physical tape used in very large libraries. A volser is a naming convention specific to ADIC/ GRAU and StorageTek devices.

volume group

A unit of data storage in an LVM system. A volume group can consist of

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