Troubleshooting guide

Glossary 297
storage migrator
Refers to the VERITAS Storage Migrator line of hierarchical storage management products
for UNIX and Windows NT/2000. These products make extra room on a disk by
transparently moving data to other storage and then transparently retrieving the data
when it is needed by a user or application.
Storage Migrator is available only for NetBackup DataCenter servers.
storage unit
Refers to a storage device where NetBackup or Storage Migrator stores files. It can be a set
of drives in a robot or consist of one or more single tape drives that connect to the same
host.
SUSPENDED media state
If a volume is SUSPENDED, NetBackup can restore from it but cannot use it for backups.
NetBackup retains a record of the Media ID until the last backup image on the volume
expires.
symbolic link
On a UNIX system, this is a pointer to the name of the file that has the source data.
tape format
The format that an application uses to write data on a tape.
tape marks
A mark that is recorded between backup images on a tape.
tape overhead
The space required for data that is not part of the backup images. For example, tape marks
and catalogs of what are on the tape are considered overhead.
tape spanning
Using more than one tape to store a single backup image.
tar
Tape ARchive program that NetBackup uses to extract backup images during a restore.
target
See “target service.”