3D Innovations DLT8000 Gas Grill User Manual


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G. DLT7000 Emulation Feature
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DLT7000 emulation is a feature that has been included in the DLT8000 tape
drive’s firmware. It allows a host to operate a DLT8000 tape drive with this
emulation feature enabled to function as a DLT7000 tape drive, emulating the
DLT7000 tape drive’s performance, capacity, and SCSI bus communication. Note,
however, that some minor differences will exist so that emulation of a DLT7000
drive is not exact; those differences will be described in this Appendix.
When in DLT7000 emulation mode, the DLT8000 tape drive identifies itself over
the SCSI bus as a DLT7000 tape drive, even though it will still support the
additional SCSI-3 commands not supported by a genuine DLT7000 drive. This will
not present a problem, though, since those commands should not be invoked in a
DLT7000 drive’s environment anyway. Running in DLT7000 emulation mode, a
DLT8000 drive will have a capacity of 35 GB (native) and a transfer rate of 5
MB/second.
Applications will be able to distinguish between a DLT7000 drive and a DLT8000
drive in DLT7000 emulation mode over the SCSI Bus via the “Product Family”
code returned in the SCSI INQUIRY command’s Vendor Unique Bytes. Once
enabled, the DLT7000 emulation setting will be retained even across power cycles
in the tape drive.
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