Specifications

ATAPI For Streaming Tape QIC-157 Rev B

82h 120 TDB Reserved 3.5" TBD 02b‡

84h 120 900 DC 3 GB 3.5" 295 12 27.5 24 24 15 12 04b‡

85h 120 TDB Reserved 3.5" TBD 05b‡

86h 120 900 Wide Tape 3.5" 400 12 27.5 24 24 15 12 06b‡

87h-90h 120 TBD Reserved 3.5" TBD

91h 120 900 Test 3.5" 100 12 27.5 24 24 15 12 11b‡

92h 120 TBD BaFe 3.5" 400 24 24 42 42 24 24 12b‡

93h 120 900 DC2500 XL 3.5" 400 12 27.5 24 24 15 12 13b‡

94h-95h 120 TDB Reserved 3.5" TBD

96h 120 900 Wide Tape 3.5" 300 12 27.5 24 24 15 12 16b‡

97h-A0h 120 TDB Reserved 3.5" TBD

A1h 120 900 Firmware 3.5" 100 12 27.5 24 24 15 12 21b‡

A2h-C2h 120 TBD Reserved 3.5" TBD

C3h 120 900 3.5" 300 18 18 72 72 18 18 00b‡

C4h-C5h 120 TBD Reserved 3.5" TBD

C6h 120 900 Wide Tape 3.5" 400 18 18 72 72 18 18 00b‡

C7h-D2h Reserved TBD

D3h 120 900 3.5" 400 18 18 72 72 18 18 00b‡

D4h-FFh Reserved TBD

Tape Lengths are for extended length cartridges. The hole spacing for standard and extended length

cartridges are the same, thus in order to distinguish extended length cartridges from standard length

cartridges, a conditioning pass must be performed during which the tape can be measured. If this

measurement is not made at cartridge insertion time, the Device shall report the code for the standard

length cartridge.

†

The hole pattern number determined by the Device is an octal number and must be converted to hex

for the medium type. Note that the conversion is aesthetic only and not mathematical. Example 22o =

22h.

‡

The hole pattern number determined by the Device is a 5 bit binary number. To convert it to the

medium type value one must add 80h.

Table 6-41 Key for Medium Type Codes

Code Meaning

IPS Maximum Speed in Inches per second

Oe Oersteds

Form Form Factor in inches

Length Tape Length in feet.

The codes A through I represent distances (in inches) between holes in the media (center of hole to

center of hole). These representations are different for 5.25" and 3.5" cartridges. The meanings of

these codes are provided in Table 6-42 and Table 6-43.

NOTE: The terms 1st, 2nd, 3rd, and 4th are counted starting from the BOT end of tape.