Troubleshooting guide

Glossary 283
daemon
A program on a UNIX system that runs in the background and performs some task (for
example, starting other programs when they are needed). Daemons are generally referred
to as services or processes on Windows NT/2000 systems.
database-agent clients
Clients with additional NetBackup software that is designed to back up relational
databases.
database-extension clients
See “database-agent clients.”
debug logs
See “activity logs.”
device delays
Delays caused by the device that are beyond the control of the storage application. An
example is the time required to position tape under the read and write heads.
device host
A Media Manager host where a drive or robotic control is attached or is defined.
device monitor
A Media Manager administration utility that provides monitoring and manual control of
Media Manager storage devices. For example, an administrator or computer room
operator can use this utility to manually reset devices or set them to the UP or DOWN
state.
DHCP
Dynamic host configuration protocol. This TCP/IP protocol automatically assigns
temporary IP addresses to hosts when they connect to the network.
differential-incremental backup
Scheduled by the administrator on the master server and backs up files that have changed
since the last successful incremental or full backup. All files are backed up if no prior
backup has been done. Also see “cumulative-incremental backup.”
directory depth
The number of levels below the current directory level that the NetBackup interfaces
show in their directory and file list displays.