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SCSI Commands

Quantum DLT 4000 Tape Drive 5-67

MODE SELECT (6) / (10) Command (15h) / (55h) (continued)

Table 5–35 MODE SELECT Mode Parameter Block Descriptor - Field Descriptions

Field Name Description

Density Code This field should match the current tape medium density; it is set to 0 if the density

is unknown.

Density Code

00h

0Ah

16h

17h

18h

19h

1Ah

Description

Use default density.

6667 bpi MFM serial cartridge tape X3B5/86-199 (read only).

10000 bpi MFM serial cartridge tape X3.193-1990 (read only).

42500 bpi MFM serial cartridge tape X3B5/91- 2.6 GB (DLTtape III

only).

Same as 17h, but with 56 track pairs vs. 24 - 6.0 GB (DLTtape III

only).

62500 bpi, 64 track pairs, serial cartridge tape - 10.0 GB (DLTtape

III only) /15.0 GB (DLTtape IIIxt only)

81633 bpi, 64 track pairs, serial cartridge tape - 20.0 GB (DLTtape

IV only)

The density codes above are the preferred codes used to define density.

Additionally, the following codes may be used, though use of the Data

Compression Page is preferred:

80h 62500 bpi, 64 track pairs, serial cartridge tape - 10.0 GB (DLTtape III)

/15.0 GB (DLTtape IIIxt) without compression

81h 62500 bpi, 64 track pairs, serial cartridge tape - 20.0 GB (DLTtape III)

/30.0 GB (DLTtape IIIxt) with compression

82h 81633 bpi, 64 track pairs, serial cartridge tape - 20.0 GB (DLTtape IV)

without compression

83h 81633 bpi, 64 track pairs, serial cartridge tape - 40 GB (DLTtape IV) with

compression

Number of

Blocks

This MODE SENSE field is sent = 0, indicating that all of the remaining logical blocks

on the tape will have the medium characteristics specified by the block descriptor.

1 2 ... 162 163 164 165 166 167 168 169 170 171 172 ... 299 300

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Quantum DLT 4000 Manual Página 167