Appendix A, Media Manager Reference Topics
Frequently Asked Questions About Device Discovery
269
Frequently Asked Questions About Device Discovery
NetBackup provides device discovery and auto-configuration on all supported operating
system server platforms (except NetWare servers) and for supported peripherals. The
following sections cover frequently asked questions about device discovery and auto
device configuration in NetBackup.
What is device discovery?
Device discovery is an exploratory method used by Media Manager to determine which
peripheral devices are visible from a given host. Visibility depends on physical
attachment (SCSI, Fibre, and so on), device state (on and responding, or off and not
responding), and host-based system device-layer configuration.
Discovery is done by sending SCSI commands through operating system device files (on
UNIX) or APIs (on Windows servers) which support SCSI pass-through. Note that if there
is no pass-through path to access a device, the device is not discovered or recognized.
What is the goal of device discovery?
The goal is to provide information to enable fully automated or partially-automated
configuration of peripherals for use with NetBackup.
Device discovery must be accurate, timely, and provide coverage for typical NetBackup
configurations.
Device discovery returns data needed to correlate devices that may be interconnected
across multiple hosts or even multiple host bus adapters on the same host.
Tape Stacker
DLT (TSD)
tsdd
tsdd
runs on the NetBackup server that has a Tape
Stacker DLT attached. This process receives
NetBackup Device Manager requests to mount and
unmount volumes and communicates these requests
to the robotics through a SCSI interface.
Removable
Storage
Manager
(RSM)
rsmd
rsmd runs on a Windows 2000 (and later supported
releases) NetBackup server. rsmd interfaces with
NetBackup Device Manager to mount and unmount
tapes that are under Microsoft RSM control.
Robotic and Robotic Control Processes (continued)
Robot Type
Process
Description
Note
Содержание NetBackupTM 5.0
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