Fan interface
The HP Ultrium LTO5 drive has the capability to control an external fan. The purpose of this is to
provide the necessary airflow through the drive to keep the internal temperatures within normal
parameters. For details of the Fan Connector, see “Fan control connector” on page 41. When the
drive detects a fan is present it will control the fan as required. Any fan used for this purpose should
be able to meet the following criteria:
• 12V supply
• 4-wire fan (Power, Ground, Speed Control and Fan Speed)
• Minimum airflow requirements as detailed in the emvironmental specification
• The enclosure used to house the fan and drive must be designed in such a way as to ensure that
the airflow generated by the fan is only pulled through the drive. There should be no path outside
the drive.
NOTE:
If you intend to plug a fan into this connector to provide the necessary airflow through the drive,
consult your HP Technical Support Representative for details of the fan specification required.
Configuring autoload and library-controlled loads
HP LTO Ultrium tape drives can be configured so that loads either occur automatically or under the
control of the library. A SCSI MODE SELECT command can set the Autoload field to do this. The field
is byte 5, bits 0–2 of the Control Mode page, 0Ah.
If the Autoload field = 0, Autoload is set and the drive automatically loads a cartridge when it is
inserted and threads the tape so that it is ready for use.
If the Autoload field = 1 or 2, the drive pulls the cartridge into the drive but does not thread the tape.
In this position, the LTO-Cartridge Memory can be read. The drive requires a Load command to thread
the tape and make it ready for use.
Special features for automation74
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