HP OpenView Storage Data Protector B6960-96008 User Manual
G-12
Glossary
the tape, and so on. In other words, if the
data rate written to the tape is less or
equal the data rate which can be
delivered to the device by the computer
system, then the device is streaming.
Streaming significantly improves the
performance of the device and use of
space.
data rate written to the tape is less or
equal the data rate which can be
delivered to the device by the computer
system, then the device is streaming.
Streaming significantly improves the
performance of the device and use of
space.
DHCP server
A system running the Dynamic Host
Configuration Protocol (DHCP)
providing dynamic IP address
assignment and network configuration
for DHCP clients.
A system running the Dynamic Host
Configuration Protocol (DHCP)
providing dynamic IP address
assignment and network configuration
for DHCP clients.
differential backup
An incremental backup that backs up
changes made since the last full backup.
To perform this type of backup, specify
the Incr1 backup type.
See incremental backup.
An incremental backup that backs up
changes made since the last full backup.
To perform this type of backup, specify
the Incr1 backup type.
See incremental backup.
differential backup (MS SQL specific
term)
A database backup that records only the
data changes made to the database after
the last full database backup.
See also backup types.
term)
A database backup that records only the
data changes made to the database after
the last full database backup.
See also backup types.
differential database backup
A differential database backup records
only those data changes made to the
database after the last full database
backup.
A differential database backup records
only those data changes made to the
database after the last full database
backup.
direct backup
A SAN-based backup solution in which
data movement directly from disk to
tape (or to other secondary storage) is
facilitated by the SCSI Extended Copy
(Xcopy) command. Direct backup
lessens the backup I/O load on systems
in a SAN environment. The data
movement is facilitated directly from
disk to tape (or to other secondary
storage) by the SCSI Extended Copy
(XCopy) command. The command is
provided by any element of the
infrastructure including bridges,
switches, tape libraries, and disk
subsystems.
See also XCopy engine.
A SAN-based backup solution in which
data movement directly from disk to
tape (or to other secondary storage) is
facilitated by the SCSI Extended Copy
(Xcopy) command. Direct backup
lessens the backup I/O load on systems
in a SAN environment. The data
movement is facilitated directly from
disk to tape (or to other secondary
storage) by the SCSI Extended Copy
(XCopy) command. The command is
provided by any element of the
infrastructure including bridges,
switches, tape libraries, and disk
subsystems.
See also XCopy engine.
directory junction (Windows specific
term)
Directory junctions use the reparse point
concept of Windows. An NTFS 5
directory junction allows you to redirect
a directory/file request to another
location.
term)
Directory junctions use the reparse point
concept of Windows. An NTFS 5
directory junction allows you to redirect
a directory/file request to another
location.
disaster recovery
A process to restore a client’s main
system disk to a state close to the time
when a (full) backup was performed.
A process to restore a client’s main
system disk to a state close to the time
when a (full) backup was performed.
Disk Agent
A component needed on a client to back
it up and restore it. The Disk Agent
controls reading from and writing to a
disk. During a backup session, the Disk
Agent reads data from a disk and sends
A component needed on a client to back
it up and restore it. The Disk Agent
controls reading from and writing to a
disk. During a backup session, the Disk
Agent reads data from a disk and sends