HP B6960-90078 Vaulting media, Verify, See also original unit and replica unit Virtual server

Glossary

vaulting media

The process of storing media to a safe and remote place. The media are brought back to the data center when they are needed for restore or are ready for reuse in subsequent backups. The vaulting procedure depends on your company's backup strategy and policies for data protection/reliability.

VBFS (OmniStorage specific term)

A Very Big File System is an extension of the standard HP-UX file system on HP-UX 9.x. It is mounted to a directory the same way as any HP-UX file system. In a VBFS, only the superblock, the inode and the 'extended attribute' information remain permanently on the hard disk and are never migrated.

See also MFS.

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 Device Interface (MS SQL Server 7.0/2000 specific term) This is a SQL Server 7.0/2000 programming interface that allows fast backup and restore of large databases.

virtual disk (HP StorageWorks Enterprise Virtual Array 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 original unit and replica unit.

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 one or more physical volumes. There can be more than one volume group on the system.

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