User manual QUANTUM SCORPION 24 DDS-3 REV B

[. . . ] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Scorpion 24 DDS-3 Tape Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . STD124000N . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . STD224000N . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . STD624000N . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ] The drive begins initializing the tape before completing the backup (WRITE) operation. After completing the backup and the yellow rectangular LED on the front panel is OFF, push the eject (tape unload) button on the front panel to remove the cartridge. The drive buffer then empties to tape, the tape rewinds and the system log is updated. After being ejected, the cartridge rests in the cartridge insertion slot in a halfway position for easy removal. Using a Cartridge Containing Data The sequence for writing a cartridge that already contains data is virtually the same as the blank cartridge sequence with the exception that the cartridge initialization process is not necessary. A brief delay occurs as the cartridge is inserted while the drive identifies the cartridge type and state, and then positions to the data area. Loading Revised Firmware Using Seagate Firmware Cartridges Flash Memory Another technological advancement incorporated into the Scorpion 24 drive is flash memory, which is useful if the drive's SCSI firmware needs to be upgraded. With the permanently installed, electrically upgradeable flash memory, revised SCSI firmware for the drive can be loaded using any one of three methods: 1) Seagate OEM firmware cartridges (see Chapter 4); 2) through the host SCSI bus; and 3) through the drive serial port (see Chapter 8). The flash memory feature enables qualified OEMs who need to revise Scorpion 24 SCSI firmware to do so quickly and easily. Flash memory also prolongs the life cycle of a drive because many new techniques--such as increasing the capacity of the drive through support for longer tapes--may require only a firmware upgrade. Page 40 DAT Drives Drive Operations Chapter 4 Firmware Download Process To load a firmware upgrade tape, follow these steps. Power on the host system with the Scorpion 24 drive installed. Make sure that there are no applications running that may try to communicate to the drive during the firmware upgrade process. Close any such applications before inserting the firmware upgrade cartridge. Insert the firmware upgrade cartridge. 3. ! Caution. Once the firmware upgrade cartridge is inserted into the drive, it is important that no power interruption occurs while the firmware is loading. If a power interruption occurs, the firmware may not be loaded correctly, and the drive may not operate properly. 4. The drive automatically recognizes the firmware upgrade cartridge and begins downloading the firmware from the cartridge into DRAM. The drive ejects the firmware upgrade cartridge as soon as the firmware has been completely downloaded into DRAM and the LEDs begin blinking with a progressive pattern. When the blinking pattern stops, the firmware upgrade operation is complete. 5. ! Caution. Do not power down the host system or disconnect power to the drive until you have completed step 6--this may render the drive inoperative. 6. Power down the system and reboot. The new firmware is immediately active and operational. Note. At this time, we recommend that you power cycle the drive to refresh any new parameter information and to execute the power-on self-test (POST) to ensure proper unit functionality. Firmware upgrade cartridges are available only to qualified Seagate OEM customers. Contact your Seagate sales representative for information. Product Manual Page 41 Chapter 4 Drive Operations Page 42 DAT Drives SCSI Interface 5 Introduction Scorpion 24 drives feature a single-ended SCSI-2 interface. Scorpion 24's SCSI-2 interface allows for communication between the host computer and the Scorpion 24 drive. [. . . ] A disturbance of the signal caused by the read channel, write channel, head/tape interaction, or conducted or radiated sources. The point along the length of a magnetic tape at which partition 1 ends and partition 0 begins. The point where the leader tape is joined to the magnetic tape. The point where the trailer tape is joined to the magnetic tape. [. . . ]