Users Guide

SNMP monitoring station. SNMP traps are sent to the SNMP monitoring stations that are defined for
your library (see “Configuring trap notifications” on page 41).
Network Time Protocol
NTP is an Internet standard protocol that assures accurate synchronization of computer clock times in a
network of computers. Running as a continuous background client program on a computer, NTP sends
periodic time requests to a server, obtaining server time stamps, and with them to adjust the client’s
clock.
Ultrium tape drives
The TL1000 Tape Autoloader supports the and later, half height tape drives.
The and later, half height tape drives support the Serial Attached SCSI (SAS) interface. They have one
Mini-SAS (SFF-8088) connector.
Speed matching
To improve system performance, the and later Tape Drives use a technique that is called speed matching.
Speed Matching dynamically adjusts the native (uncompressed) data rate to the slower data rate of the
attached server.
Channel calibration
The channel calibration feature of the and later Tape Drives customizes each read/write data channel for
optimum performance. The customization enables compensation for variations in the recording channel
transfer function, media characteristics, and read/write head characteristics.
Power management
The and later Tape Drives feature a power management function. This function controls the drive's
electronics so that part of the electronics completely turns OFF when circuit functions are not needed for
the drive's operation.
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Figure 6. Ultrium half height tape drive
Product description 7