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4. OPERATION
4. 5 MAINTENANCE, TROUBLESHOOTING AND SERVICE
4. 5. 1 Head Cleaning
The SDT-10000/SDT-11000 has a built-in head cleaner designed to last for the life of the drive. In addition, a cleaning
tape should be used periodically to clean the entire tape path.
The drive will automatically request that the user perform a cleaning operation (described below). The need for a
cleaning is determined by the length of time that the drum has been rotating since the last cleaning was performed. The
drive will request a cleaning cycle after every 24 hours of drum rotation.
The Cleaning Request is indicated by the Status LED flashing:
-
on for 3.5 seconds
-
off for 0.5 seconds
4. 5. 2 Troubleshooting Guide
Problems encountered while operating the Sony SDT-10000/SDT-11000 tape drive fall into two categories: Opera-
tional problems and Read/Write problems.
Operational problems include any conditions that prevent the tape drive from operating. Operational problems usually
are discovered the first time the drive is installed on a system or when the system configuration is changed or physically
moved.
Read/Write problems include conditions that effect the transfer of data to and from the tape drive. Commands such as
REWIND, REQUEST SENSE and UNLOAD perform normally but data transfers fail.
The following sections describe the recommended procedures for solving operational and read/write problems.
4. 5. 2. 1 Operational Problems
1. The tape drive will not accept a tape cartridge.
Withdraw the tape cassette and turn the power to drive off, wait 5 seconds, then back on. Observe the drive for a
normal power up sequence (See Section 4.3.4 ).
If the LEDs do not light, check the power supply and power cable connection. If the drive completes the power on
sequence normally but still won't accept the tape cassette, the drive may be defective.
A tape may already be in the drive. Tape LED is on. Press EJECT to remove the first tape.
The power has been removed from the drive with a tape loaded. When the power is restored to the drive, it will
detect the tape and rewind the tape to BOT. Press EJECT to remove the cassette.
2. A tape is in the drive and will not eject.
If the SCSI command PREVENT ALLOW MEDIA REMOVAL (with Prevent bit set to one) has been sent to the
drive, the cartridge will be retained in the drive even after an UNLOAD command. The EJECT button is also
disabled. Send an PREVENT ALLOW MEDIA REMOVAL (with prevent bit clear) command, issue a SCSI bus
reset, or power the drive off and back on to override this condition.
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SONY SDT-10000/SDT-11000 DDS Tape Drive
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